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      • Contactplugin-autotooltip__default plugin-autotooltip_bigContact

        If you have a burning desire to contact me, use the discussion form below. Anything you say remains private between you and me.
      • Cookie Policy & GDPRplugin-autotooltip__default plugin-autotooltip_bigCookie Policy & GDPR

        There are NO tracking cookies on this site!

        The Cookie policy is straightforward. This site only uses cookies that are required to make your experience of using this site better, and only uses session cookies (see exceptions below). Session cookies are deleted when you close your browser.
      • Downloadsplugin-autotooltip__default plugin-autotooltip_bigDownloads

        Orbital Calculator Current Version This is a portable application, meaning there is no installer. Just unzip into a folder and run the executable. Since it is portable, it can be run from a USB stick.

        A full description and a list of the features are available
      • International Space Stationplugin-autotooltip__default plugin-autotooltip_bigInternational Space Station

        This page has a portal through which you can view the current location of the International Space Station, updating in real-time. The tracker itself comes from the European Space Agency (ESA).

        Part of the tool doesn't seem to be working properly yet, raising an error when the widget first loads. A possible explanation for the error is detailed below. There is also a handy link to get email notifications direct from NASA when the ISS is visible in your night sky.
      • Mars Mission Locatorplugin-autotooltip__default plugin-autotooltip_bigMars Mission Locator

        [Mars Missions] The location of all the missions that have gone to Mars can be confusing when you don't know where they went. Many missions never made it to the surface successfully, or had a malfunction that prevented them from working properly. Some of the landers introduced themselves to the surface with a little too much vigour. Others sailed on past Mars never to be seen again.
      • Mars Weather Reportsplugin-autotooltip__default plugin-autotooltip_bigMars Weather Reports

        These reports are provided by NASA's InSight lander in the south-west corner of Elysium Planitia. Daily readings are usually a couple of days behind reality.

        This page is updated as new data is detected.

        Last update: 10:35 Sat. Dec 5th, 2020 GMT
      • NASA Image of the Dayplugin-autotooltip__default plugin-autotooltip_bigNASA Image of the Day

        Date: Sat 5th December, 2020

        Title: Mons Rumker in the Ocean of Storms

        Mons Rumker, a 70 kilometer wide complex of volcanic domes, rises some 1100 meters above the vast, smooth lunar mare known as Oceanus Procellarum, the Ocean of Storms. Daylight came to the area late last month. The lunar terminator, the shadow line between night and day, runs diagonally across the left side in this telescopic close-up of a waxing gibbous Moon from November 27. China's Chang'e-5 miss…
      • Near Earth Objectsplugin-autotooltip__default plugin-autotooltip_bigNear Earth Objects

        (c)www.astroart.org The following data is reproduced from the NASA NEO (Near Earth Object) database, and is updated daily. Each record represents an object such as an asteroid or comet, and notes the date and approximate time the object is closest to the Earth as it passes by. The data is refreshed daily covering the period displayed on this page.
      • Perseverance Roverplugin-autotooltip__default plugin-autotooltip_bigPerseverance Rover

        Perseverance has launched succesfully and the clock is now counting flight and ETA time. It is due to land on Mars on (times and countdown timer based on NASA's timer):

        * Feb 18th 2021. * * * * * * *
      • Rules on Reviewingplugin-autotooltip__default plugin-autotooltip_bigRules on Reviewing

        First off, you should know I only have a limited amount of time, so I can't review a hundred novels at once. Sorry, but that's basic physics for you. If I agree to review your novel, you may have to wait a while for me to get around to it, and then I'll need time to read it. I only review hard copies.
        • A Keen Interest In Marsplugin-autotooltip__default plugin-autotooltip_bigA Keen Interest In Mars

          [MOLA globe of Mars]You may have noticed from pages such as the Mars Weather Report page, that I have a keen interest in Mars, Martian weather, and the InSight lander.

          Mars itself, and the incredible science we are doing there is of course a fascination in and of itself. However, my interest goes deeper than that. My latest novel (at the time this article was written - March 2019) is about the exploration of Mars. NASA have provided a wealth of data and information for …
        • A New Siteplugin-autotooltip__default plugin-autotooltip_bigA New Site

          Yup, the old site was as ugly as sin and to find a blog entry you had to scroll through the feed or take your chances with the search option.

          This new site is just as easy to maintain, has extensive search capabilities, and both orders and structures the entries. Not only does this make it easier for you to find stuff, it encourages you to browse around. It's not as ugly either.
        • Getting To Marsplugin-autotooltip__default plugin-autotooltip_bigGetting To Mars

          [Mars] Edit: updated to include

          There are multiple ways to get to Mars, and each has pros and cons. The one thing they all have in common is orbital mechanics. Some options can get to Mars in a short period of time, while others could take up to a year. Some are better suited for robotic missions, others for crewed missions. This article takes a look at the problems of getting to Mars (and getting back) and what options are available.
        • How do I Calculate Distance from Period?plugin-autotooltip__default plugin-autotooltip_bigHow do I Calculate Distance from Period?

          I've been asked how Orbital Calculator can calculate the distance an object is from a gravitational mass, using just its period (the time it takes to complete an orbit). The technique is relatively simple, so I'll explain it.
        • NASA Boarding Passplugin-autotooltip__default plugin-autotooltip_bigNASA Boarding Pass

          I took the plunge and got my NASA boarding pass for the Mars 2020 Rover mission.

          [NASA Boarding pass for Mars 2020 Mission]

          Get yours here: NASA Website SEND YOUR NAME TO MARS
        • NASA Receives 2 Emmy Awardsplugin-autotooltip__default plugin-autotooltip_bigNASA Receives 2 Emmy Awards

          NASA recently won (14th-15th Sept 2019) two Emmy's for interactive content. Aside from the obvious achievements of winning the awards, there is something else going on here that should be recognised and encouraged. Awards, of course, are intended to recognise, encourage and promote excellence, but I'm talking about NASA not only reaching out to the public, but interactively engaging them.
        • Orbital Calculator v1.0.0.5 Updateplugin-autotooltip__default plugin-autotooltip_bigOrbital Calculator v1.0.0.5 Update

          You can now calculate distance from a gravitational mass using the orbital period. The image above shows a calculation for Mars which has a 687 day year.

          I've allowed the use of tokens to identify time components to make it easy to use. The examples shown in the image should explain how it works.
        • Orbital Shenanigansplugin-autotooltip__default plugin-autotooltip_bigOrbital Shenanigans

          [MOLA map of Mars coloured by elevation]

          Edited: 2019-03-14

          Sometimes when you do some research – actually, quite often – you find out some really interesting stuff and end up changing your mind. In my story, I had some people on the ground on Mars, and wanted a spacecraft in a geostationary orbit above them to give them communications between them at all times. Just for info, when talking about geostationary orbits, the accepted term for Mars is aerostationary. I’ll use g…
        • Adjustment to Mars Clocksplugin-autotooltip__default plugin-autotooltip_bigAdjustment to Mars Clocks

          [Martian clock showing time at the prime meridian] The Martian clocks (keeping Martian time) on the Mars Weather page also display the L (pron. ell sub ess) - a way of describing where the planet is in its orbit, and the displacement of the sun in the sky at midday. I noticed the value for this was out by some distance, and after pondering the problem (and the code) for a while, the penny dropped.
        • Another Dayplugin-autotooltip__default plugin-autotooltip_bigAnother Day

          A busy day today. I had an interview for a job today, so fingers crossed. Orbital Calculator got some attention too: I added the ability to have escape velocities output in km, metres or miles (per second) in the Gravity and Motion calculations - previously, output was just in km/s. I've tested and compiled and tested again, and I'll zip up the various releases and upload them to this site tomorrow (actually, later today - it's nearly 3am!).
        • Automatic Weather Updatesplugin-autotooltip__default plugin-autotooltip_bigAutomatic Weather Updates

          The Mars Weather page is now 99.99% automatic, with rebuilds regularly throughout the day. The 0.001% that's not automated? Once a week I have to update the image that shows the relative positions of the inner planets. I think I can manage that
        • Hogfather Update 2plugin-autotooltip__default plugin-autotooltip_bigHogfather Update 2

          The Website will be down for a short period Sun, Aug 2nd 2020 while the site is upgraded

          I shall be taking the site down for a while on Sun, Aug 2nd 2020, while i perform the upgrade. Although I have a local copy of the website, I also do a bit of experimentation on it, so the two are not perfectly synchronised, so I'll have to make a backup of the site and download it first. It'll actually take longer to do that than perform the update. It should all be over in less than tw…
        • Info Reportplugin-autotooltip__default plugin-autotooltip_bigInfo Report

          N.B. This page gets bumped every now and again when new info is added.

          I've been pruning some of the stale articles and blog posts. If anything is broken, please let me know.
        • Mars July 2020plugin-autotooltip__default plugin-autotooltip_bigMars July 2020

          It's mid-July now, and temperatures at the InSight lander's location on Mars (south-west corner of Elysium in the northern hemisphere) are teetering on the edge and about to fall. At the end of the month - July 30th - NASA's Perseverance rover (formerly known as the Mars 2020 rover) gets its first launch opportunity. It had previously been scheduled to launch two weeks earlier but, you know, things happened.
        • Mars Solar Conjunctionplugin-autotooltip__default plugin-autotooltip_bigMars Solar Conjunction

          This page is currently inactive for 2019 conjunction (until next conjunction in 2021)

          Mars is heading for a solar conjunction, which in layman's terms means it's on the opposite side of the sun from the Earth. For a short period, no commands will be sent to the Mars spacecraft (which includes landers and rovers) since the sun's corona could corrupt those commands and result in unintended actions, disablement of the spacecraft or worse.
        • Mars Weather Data Flows Againplugin-autotooltip__default plugin-autotooltip_bigMars Weather Data Flows Again

          It appears that after a long hiatus, Mars Weather data is flowing again.
        • Mars Weather Page Updateplugin-autotooltip__default plugin-autotooltip_bigMars Weather Page Update

          [Temperature over time] I've updated the format of the Temperature Over Time chart on the Mars Weather page to make it more readable. The sol numbers were overlapping each other, despite being broken into two rows. The chart is now interactive, in that you can use your mouse (or other pointing device) to select a position on one of the temperature graphs, and the sol number will be displayed at the bottom.
        • Orbital Calculator 2.0.7 Releasedplugin-autotooltip__default plugin-autotooltip_bigOrbital Calculator 2.0.7 Released

          This is a maintenance update. see Release Notes for details.
        • Orbital Calculator v2.0.6 Releasedplugin-autotooltip__default plugin-autotooltip_bigOrbital Calculator v2.0.6 Released

          [Orbital Calculator v2.0.6] Four major new functions for acceleration and gravity and a few tweaks under the hood. New functions include: Constant Velocity, Free-Fall, N-Body Centre of Gravity (in 3D space) and Distance/Speed/Time.

          These powerful functions allow you to calculate speed as a constant, as constant acceleration or as increasing acceleration, as well as determine the common centre of gravity of any number of astronomical or artificial space-born o…
        • Pi Zero Planplugin-autotooltip__default plugin-autotooltip_bigPi Zero Plan

          I've been wondering what to do with my Raspberry Pi Zero, and didn't think I'd come up with an idea for a few months. Like most things, it's not necessarily a good idea to go looking for a use for it: wait until a use suggests itself.
        • Raw Weather Dataplugin-autotooltip__default plugin-autotooltip_bigRaw Weather Data

          I have (at last) managed to get hold of all the Mars Weather data that's been missing from my dataset. In fact, I've got hold of so much (over 110Gb) that it's going to take some processing - it bears little resemblance to the data I currently fetch. I need a plan.
        • Scatter Graphplugin-autotooltip__default plugin-autotooltip_bigScatter Graph

          I've added a scatter graph to the Near Earth Object page, to show when objects are at closest approach and at what distance.
        • Site Softwareplugin-autotooltip__default plugin-autotooltip_bigSite Software

          Some people have expressed an interest in what software I use for this site. It's built around DokuWiki with some extensions to make it work like a blog, keep it transparent (all the articles and entries are visible in the treeview menu) and to spruce things up - such as the auto-tooltip which displays the first part of a page when the user mouses over an internal link (this also works in the top-bar menu). Some extensions make administering the site easier, such as moving articl…
        • Site Statisticsplugin-autotooltip__default plugin-autotooltip_bigSite Statistics

          For the last year I've been using a plugin for my site that generates a statistics page, through which I can keep an eye on how well the site is doing. A couple of days ago, it stopped working. After a bit of analysis I discovered the data structures it was creating in memory had consumed too much of said memory and my hosting service had auto-assassinated it.
        • Updatesplugin-autotooltip__default plugin-autotooltip_bigUpdates

          The physical Martian clock... I have to come up with a better name for it than that. PiMars! Yup, I like that. The PiMars clock was up and running and displaying data at a crucial time. It was just a couple of hours before the end of the day at the InSight location, and as luck would have it, I had it display time at that place.
        • Weather Page Updateplugin-autotooltip__default plugin-autotooltip_bigWeather Page Update

          Mon Aug 10, 2020

          I've made some updates to the Mars Weather page.

          * Bugfix to Wind direction chart to correctly show most common wind direction and sample count * Smoothed the max/min data lines in the Temperature over Time chart so anomolies don't distort the location of the lines
          • Pi-Mars Installationplugin-autotooltip__default plugin-autotooltip_bigPi-Mars Installation

            You require an RPIv2 or later (to use the SmartiPi Touch 2 case, you require an RPI4). It will not run on an RPI1 or an RPI-Zero. This installation and configuration guide assumes you have installed an operating system on your Pi and can login either directly (with a keyboard/monitor attached to the Pi) or indirectly through SSH or VNC across a network.
          • Pi-Mars v1.1plugin-autotooltip__default plugin-autotooltip_bigPi-Mars v1.1

            Pi-Mars is a clock for the Raspberry Pi, that tells the time anywhere on Mars. It has options to nominate ad-hoc locations, pre-selected locations and sites of the various missions that made it to the Martian surface. It is skinnable and highly configurable.
          • SmartSuitplugin-autotooltip__default plugin-autotooltip_bigSmartSuit

            SmartSuit: A Hybrid, Intelligent, and Highly Mobile EVA Spacesuit for Next Generation Exploration Missions

            Developer: Texas A&M Engineering Experiment Station

            I think the title says it all, but just in case it wasn't crystal clear, this is what they have to say about it:
          • THE MOST Space Telescopeplugin-autotooltip__default plugin-autotooltip_bigTHE MOST Space Telescope

            [Disambiguation: this page is about The High Étendue Multiple Object Spectrographic Telescope, not Canada's MOST space telescope]

            Few telescopes can honestly say they've reinvented the concept, yet THE MOST certainly has. It works on a surprisingly old principle, by passing light through two prisms. As Isaac Newton demonstrated, this first splits light into its constituent components, then recombines it back again.
        • Dragonfly to Explore Titanplugin-autotooltip__default plugin-autotooltip_bigDragonfly to Explore Titan

          Credits: NASA/JHU-APL Few worlds excite exoplanetary chemists like Titan, Saturn's enigmatic and largest moon. It is the second-largest moon in the solar system, and the only one known to have a dense atmosphere. As such, it is seen as an analogue to the early Earth, and therefore important in understanding how life might have evolved on our homeworld.
        • How Big Is The Universe?plugin-autotooltip__default plugin-autotooltip_bigHow Big Is The Universe?

          [Hubble deep Field Image]

          I recently came across a youtube video explaining a method for multiplication that was quite different from long multiplication. To explain why this was so interesting, let’s first talk about long multiplication and what’s wrong with it, and then we'll calculate the size of the visible universe in centimeters.
        • Landing the Mars 2020 Rover Safelyplugin-autotooltip__default plugin-autotooltip_bigLanding the Mars 2020 Rover Safely

          Autonomous landings are always fraught with danger. One of the most dangerous terrains any landing might occur on is a boulder field. Not only would the impact of the landing on these hard objects be a threat, but the boulders are likely to be jagged too. Another threat are the steep cliffs of the crater - not falling off them (although that's a possibility), but crashing into them.
        • Magnetic Field Lines on a Galactic Scaleplugin-autotooltip__default plugin-autotooltip_bigMagnetic Field Lines on a Galactic Scale

          [Powerful magnetic fields are visible]

          The Cigar galaxy (M82) is already famous for the speed at which it creates new stars. The composite image shows the powerful magnetic field lines on a truly epic scale, wrapping around the entire galaxy. NASA's SOFIA observatory (Stratospheric Observatory for Infrared Astronomy - a converted Boeing 747) has shed light on what is happening.
        • Mysterious Starplugin-autotooltip__default plugin-autotooltip_bigMysterious Star

          Back in 2016, Tabetha Boyajian gave a TED talk about a star with nifty little name KIC 8462852. The Kepler space telescope had studied it and lots of other stars over the course of four years, but this one stood out.

          Also known as Tabby's Star, it is a main-sequence F-type star located in the constellation Cygnus, about 1,480 light-years from Earth. Its claim to fame of course, is that it was suggested that alien megastructures would explain the weird data that Kepler had recor…
        • NASA Got it Wrong - Oops!plugin-autotooltip__default plugin-autotooltip_bigNASA Got it Wrong - Oops!

          It's not every day you get the chance to tell NASA they screwed up.

          I was reviewing the data I'd collected from NASA's Mars Weather page, and I noticed that the graphs they generated didn't match the summary data.

          For example, the summary data for Sol 169 shows the maximum temperature peaking at -17.6°C, while the graph for the same day showed the temperature never rising above -25°C.
        • To the Moon and Marsplugin-autotooltip__default plugin-autotooltip_bigTo the Moon and Mars

          [The Moon - watch out, here we come (again)!]NASA has outlined an aggressive timetable for an equally aggressive return to the Moon, with a view to making the Moon a waystation for trips to Mars. This requires the development of a whole slew of new technologies, as well as ramping up existing technologies and capabilities to whole new levels.
        • Calculate your Age and Weight on the Planetsplugin-autotooltip__default plugin-autotooltip_bigCalculate your Age and Weight on the Planets

          This little calculator allows you to calculate how old you would be on each of the planets in the solar system, and what your weight would be. If you have weight issues, don't look at the result for Jupiter!
        • DLCounter Pluginplugin-autotooltip__default plugin-autotooltip_bigDLCounter Plugin

          [screenshot]

          This download-counter plugin for DokuWiki enables you to keep track of the number of downloads of media files such as zip, gzip, tarballs and pdf's (your choice of media formats). This plugin has been developed and tested on “Greebo
        • DLCounter Plugin Bugtrackerplugin-autotooltip__default plugin-autotooltip_bigDLCounter Plugin Bugtracker

          If you have any issues with the plugin, leave a comment here.
        • Orbital Calculatorplugin-autotooltip__default plugin-autotooltip_bigOrbital Calculator

          I needed to calculate orbital characteristics for any orbit around any gravitational mass (because I write sci-fi stories), so I wrote this program because I'm a programmer and I'm too lazy to do it by hand all the time. The program has expanded over the last few years, sometimes from suggestions by other writers. I make it freely available and as simple to use as possible. It now has a list of functions as long as your arm (assuming you're not a tentacle user), and the numbe…
        • Orbital Calculator v2.x Release Notesplugin-autotooltip__default plugin-autotooltip_bigOrbital Calculator v2.x Release Notes

          This lists the important notes on each new release, explaining what has changed and what's new.

          See the Downloads page to download Orbital Calculator for various platforms. A full description of the product is available on the
        • Surface Gravity Calculatorplugin-autotooltip__default plugin-autotooltip_bigSurface Gravity Calculator

          Want to know what the surface gravity is on any celestial object? You just need to know it's mass in terms of Earth masses (e.g. Earth = 1, Venus = 0.815, Mars = 0.107 etc.) and it's radius. This calculator will do the rest.
      • Animal Farmplugin-autotooltip__default plugin-autotooltip_bigAnimal Farm

        As a writer, I love sitting at my computer and either writing my next novel, or working on the development phase - world-building, character creation, plot development etc. However, after 12 hours sitting at my desk I'm getting a bit uncomfortable and if I listen very carefully, I can hear the sofa's siren call
      • Description or Teaser?plugin-autotooltip__default plugin-autotooltip_bigDescription or Teaser?

        When you write the blurb that goes on the back of the book, should you write a description or a teaser? This article explores that question, explaining why each of them work and what their effects are, and why sometimes one is a better choice than the other.
      • Oh, The Facts!plugin-autotooltip__default plugin-autotooltip_bigOh, The Facts!

        [Only the facts, ma'am]There was a litany that writers used to be told, but is rarely heard these days. If you've been a writer for more than ten years you will probably recall it: “Stick to the facts!”. Does that mean your story ends up a dry, soulless, sequential list of equally dry, soulless facts? Of course not.
      • Proper Paragraph Spacing and Indenting on Web Pagesplugin-autotooltip__default plugin-autotooltip_bigProper Paragraph Spacing and Indenting on Web Pages

        This is a short article on how to setup the correct CSS in order to replicate the paragraph spacing and indenting displayed in a book on your web pages. It will also enlarge and embolden the first character in the scene.
      • Self-Publishing Trapsplugin-autotooltip__default plugin-autotooltip_bigSelf-Publishing Traps

        Sometimes it's a while before I post a new book review. Usually this is because I've read some self-published novels that I don't want to review. When I post a review, I'm telling readers about a book I'd recommend. This is good for readers, and it's good for the authors who get the recommendation. I'm not out to harm someone's writing career - which can always be turned around in the future - and I'm certainly not the sort of pompous umm, donkey, that simply lets my mouth…
      • Smart but Dumb Aliensplugin-autotooltip__default plugin-autotooltip_bigSmart but Dumb Aliens

        We all know the problem, especially from video games and movies, where the super-smart aliens turn out to be really dumb. This is usually because the creator hasn't put much thought into it.

        So, you're creating a super-intelligent alien or species or civilisation for your short story or novel or whatever. How do you avoid the pitfalls of dumbing them down?
      • Story Structure (Hero's Journey)plugin-autotooltip__default plugin-autotooltip_bigStory Structure (Hero's Journey)

        The Hero's Journey is an overlay for the 4-part story structure. See how they work in conjunction with the character arc.

        ----------

        Click on this image to review it, then click it again to see it full size

        Other Structures
      • The Prophecyplugin-autotooltip__default plugin-autotooltip_bigThe Prophecy

        [Myrddin]Prophecy is a common theme in fantasy, partly because it tugs on the strings that are entangled with mythos - somehow it just excites us - and partly because it is a huge convenience. Never underestimate the power of a single word. In all of writing, there are few words that are as powerful as
      • Voices in the Darkplugin-autotooltip__default plugin-autotooltip_bigVoices in the Dark

        A scene that is all dialogue and no action creates the dreaded “voices in the dark”. Perhaps they're at a conference table, or standing around talking things through before making a decision that will propel the story into its next phase.
          • Silvertongueplugin-autotooltip__default plugin-autotooltip_bigSilvertongue

            [Silvertongue]

            Silvertongue is the first in a series named “Remnants of Magic”, and both the title of the novel and the series become readily apparent in the first scene. Speaking of the first scene, it's a big one at 100 pages spanning eleven chapters, but don't let that put you off - it's one hell of a scene. The story kicks you straight into the action and that first scene is a long and continuous battle - and the poor protagonist (Jon) hasn't got a clue what's going on or why…
          • Beyond Falcon's Reachplugin-autotooltip__default plugin-autotooltip_bigBeyond Falcon's Reach

            Beyond Falcon's Reach by Jay Northearn, is a mish-mash of high fantasy, gothic-horror, steampunk and electropunk, with a dash of semi-intelligent machine-learning AI's thrown-in to boot. Yet for all of this, the world Northearn has created is homogenous and holistic - two watchwords I'll bang on about until the cows come home, to anyone who'll listen. Giving everything in your world a place and a reason for being there is something that every writer should always keep i…
        • The Bluffers Guide to the Quantum Universeplugin-autotooltip__default plugin-autotooltip_bigThe Bluffers Guide to the Quantum Universe

          [The Bluffers Guide to the Quantum Universe]

          The Bluffers Guide to the Quantum Universe is a very funny guide (read: hilarious) to things surrounding quantum mechanics. Who the major players were, how the major theories won out over each other... or didn't. Tons of interesting facts you can toss around at parties and make it look like you know what you're talking about when discussing anything to do with quantum theory, quantum mechanics, who was who…
          • Creation Machineplugin-autotooltip__default plugin-autotooltip_bigCreation Machine

            Andrew Bannister’s “Creation Machine” is the best novel I’ve read this year – and that’s saying something, I’ve read some of the best sci-fi novels from the last five years in the last ten months.

            The breadth and depth of his imagination is incredible. He’s created an entire artificial galaxy, given it character and taken us on a tour that is as exciting as it is varied.
          • Iron Godsplugin-autotooltip__default plugin-autotooltip_bigIron Gods

            Another novel of The Spin, and following on from Creation Machine, Iron Gods continues in much the same vein. There are intriguing and plausible characters, a spaceship AI that has had its lobotomy reversed, strange worlds and even stranger economic forces.
          • Stone Clockplugin-autotooltip__default plugin-autotooltip_bigStone Clock

            The third outing in The Spin series from acclaimed author Andrew Bannister, Stone Clock, has a dark edge to it. Already an accomplished writer, Bannister has taken things up a notch.

            His usual mélange of lucid and slightly demented imagination is in full force, and the array of modes of humour are all present and permeate the pages as if they’d been dipped in the stuff.
          • Hard-Boiled Wonderlandplugin-autotooltip__default plugin-autotooltip_bigHard-Boiled Wonderland

            [Hard-Boiled Wonderland]

            Chris Morton is a writer with a certain pedigree, having been shortlisted for a Guardian award, this story is his third novel and his first in science-fiction.

            It tells the story of a man (Maggie Flycatcher) who has almost certainly the most boring job in history: he's a lemon tree supervisor. The creative talent that can come up with such a pointless job is one that deserves some recognition, so it instantly grabbed my attention. Flycatcher's …
          • Colony One Marsplugin-autotooltip__default plugin-autotooltip_bigColony One Mars

            [Colony One Mars] [4.5 stars]

            Colony One Mars promises to be a fast-paced sci-fi thriller, and it certainly delivers. The prologue is short and sweet, and although it doesn't offer any story information that isn't in the story proper, it does set up the atmosphere for what is to follow. The tension ramps up very quickly and most unexpectedly, and everything changes before we've had a chance to grab our breath.
          • Colony Three Marsplugin-autotooltip__default plugin-autotooltip_bigColony Three Mars

            [Colony Three Mars by Gerald M. Kilby] [4 Stars] The third instalment in the saga is even messier (for the protagonists) than the previous two, ramping up the tension and the action, and making the solution even harder for the reader to predict. The cast of protagonists has grown a little, but that's fair because the cast of antagonists has too.
          • Colony Two Marsplugin-autotooltip__default plugin-autotooltip_bigColony Two Mars

            [Colony Two Mars] [4 Stars] Colony Two Mars picks up the story a few years after the preceding story, Colony One Mars left off. I really enjoyed the first instalment in this trilogy, but this is a much better, much stronger story. As the overarching story of the trilogy begins to emerge, Kilby's eye for a good story starts to pay dividends.
        • Science Fiction Double Featureplugin-autotooltip__default plugin-autotooltip_bigScience Fiction Double Feature

          [Science Fiction Double Feature ]

          This pair of novellas comes courtesy of Zombie Pirate Publishing, and indeed the stories themselves come from the publishing house's founders and resident editors, Sam M. Phillips (Into the Eye) and Adam Bennett (Phosphorus).

          Since they come as a pair it is necessary of me to review each in turn before giving an overall impression, and I've chosen the order they appear between the covers.
    • DokuWikiplugin-autotooltip__default plugin-autotooltip_bigDokuWiki

      wiki:dokuwiki DokuWiki is a simple to use and highly versatile Open Source wiki software that doesn't require a database. It is loved by users for its clean and readable Formatting Syntax. The ease of maintenance, backup and integration makes it an administrator's favorite. Built in
    • Formatting Syntaxplugin-autotooltip__default plugin-autotooltip_bigFormatting Syntax

      DokuWiki supports some simple markup language, which tries to make the datafiles to be as readable as possible. This page contains all possible syntax you may use when editing the pages. Simply have a look at the source of this page by pressing
blog:aardvaark:neo

Near Earth Objects

Image © David A. Hardy www.astroart.org, reproduced by kind permission

The following data is reproduced from the NASA NEO (Near Earth Object) database, and is updated daily. Each record represents an object such as an asteroid or comet, and notes the date and approximate time the object is closest to the Earth as it passes by. The data is refreshed daily covering the period displayed on this page.

There are 4 tables and 2 graphs:

  1. 10 closest passing objects today->28 days ahead
  2. Objects passing by the Earth today
  3. Objects passing by in the next 28 days
  4. Objects that passed by in the last 7 days
  5. Graph for a 36-day period up 20 million km
  6. Graph for 15-day period up to 1 million kilometers

With each record, there is a link to a JPL page that offers more information on the object. Records are ordered by date and time. Distances are rounded to the nearest kilometre. Object diameters are in metres, and are averaged from current maximum and minimum estimates. Magnitude is absolute magnitude.

Last updated: Sun Dec 6th 00:01

Scatter Graphs

The graphs show time in the horizontal direction, and distance vertically. For the upper graph, the period is the same period as the data in the rest of this document: 36 days (the last 7 days, today and the next 28 days). Each grid square is 1 day wide and 1 million kilometres high. The graph shows any object that has or will pass within 20 million kilometres of Earth.

The lower graph focuses on a 7 day period on each side of the current date, and a distance limit of 1 million kilometres.

Close approach data for locations other than Earth have been filtered out.

Closest

Objects in this table are ordered by distance

Dec 6th 2020 - Jan 3rd 2021
Date Name Diameter Magnitude Km/s Distance
Dec-24 12:41 (2011 CL50) 13 27.600 3 1,178,966
Dec-27 07:44 (2016 AF2) 11 27.900 5 2,800,460
Dec-25 20:20 501647 (2014 SD224) 149 22.300 10 3,020,487
Jan-03 20:50 (2019 QW2) 47 24.800 5 3,367,851
Dec-08 08:09 (2020 WK3) 42 25.034 7 3,839,763
Dec-21 08:18 (2017 XQ60) 57 24.400 16 4,148,129
Dec-26 21:58 (2012 XE133) 90 23.400 9 4,648,396
Dec-08 02:24 (2018 PK21) 28 25.900 3 4,681,198
Dec-16 13:14 (2020 VY1) 28 25.956 4 5,069,283
Dec-30 02:46 (2012 UK171) 57 24.400 5 5,940,907

Today

Objects in this and the following tables are ordered by date, sub-ordered by time.

Today
Date Name Diameter Magnitude Km/s Distance
Dec-06 00:00 (2007 XH16) 517 19.600 23 60,855,344
Dec-06 01:20 (2001 WF49) 164 22.100 19 50,407,435
Dec-06 05:48 (2000 EB14) 103 23.100 11 40,223,195
Dec-06 09:57 450259 (2003 WQ7) 517 19.600 19 61,392,242
Dec-06 13:47 484402 (2007 XH16) 517 19.600 23 60,855,134
Dec-06 13:56 (2020 LF2) 64 24.120 6 50,558,908
Dec-06 17:27 275714 (2000 YH4) 783 18.700 18 24,038,200
Dec-06 18:09 (2014 GS1) 20 26.700 16 65,040,561
Dec-06 20:39 (2008 YJ2) 271 21.000 23 33,563,644
Dec-06 22:06 (2018 XW2) 34 25.500 13 9,168,150

Looking Ahead

Next 28 Days
Date Name Diameter Magnitude Km/s Distance
Dec-07 00:26 (2010 XA68) 179 21.900 30 24,997,757
Dec-07 03:31 (2010 WC9) 82 23.600 22 55,185,283
Dec-07 08:43 (2015 XX169) 14 27.400 5 15,581,077
Dec-07 09:23 (2015 VV105) 9 28.300 7 18,581,516
Dec-07 11:58 333755 (2010 VC1) 594 19.300 16 51,585,474
Dec-07 16:58 (2020 VK1) 67 24.035 7 13,462,206
Dec-07 17:52 (2009 HD82) 206 21.600 18 21,110,101
Dec-07 18:59 (2019 GJ) 59 24.300 6 30,497,976
Dec-07 19:27 (2018 YA1) 94 23.300 17 49,190,673
Dec-07 20:16 (2013 GF23) 78 23.700 18 73,906,727
Dec-07 22:29 (2011 BC40) 358 20.400 12 19,345,938
Dec-08 00:46 (2003 GH21) 226 21.400 8 68,296,384
Dec-08 02:24 (2018 PK21) 28 25.900 3 4,681,198
Dec-08 04:43 (2020 JN3) 14 27.382 6 46,011,440
Dec-08 07:29 (2020 WT2) 268 21.024 16 21,092,842
Dec-08 08:09 (2020 WK3) 42 25.034 7 3,839,763
Dec-08 09:52 (2020 VZ5) 262 21.073 12 38,034,492
Dec-08 16:57 (2020 VH4) 98 23.204 9 31,172,586
Dec-08 17:16 (2006 RJ1) 156 22.200 6 20,995,992
Dec-08 19:49 (2010 PW58) 197 21.700 10 50,493,885
Dec-08 20:15 (2019 AQ8) 71 23.900 15 66,965,122
Dec-08 23:45 3908 Nyx (1980 PA) 1,491 17.300 20 74,155,340
Dec-09 00:06 (2015 XB) 65 24.100 13 13,563,985
Dec-09 04:54 (2016 PA40) 57 24.400 10 44,547,558
Dec-09 08:22 (2015 BF4) 358 20.400 4 35,479,696
Date Name Diameter Magnitude Km/s Distance
Dec-09 10:16 417655 (2006 YF13) 450 19.900 27 66,539,275
Dec-09 11:11 (2020 VQ3) 110 22.964 5 28,111,731
Dec-09 13:12 (2018 RP2) 52 24.600 5 73,019,124
Dec-09 16:21 (2020 TX2) 301 20.773 15 70,332,033
Dec-09 17:40 (2020 MP2) 157 22.187 12 49,440,986
Dec-10 01:37 (2016 XF18) 68 24.000 12 22,372,406
Dec-10 06:42 (2020 CK1) 21 26.581 8 52,048,938
Dec-10 09:16 (2006 FH36) 113 22.900 7 32,821,183
Dec-10 23:50 (2020 UN2) 134 22.528 6 29,741,635
Dec-11 05:26 (2017 TZ5) 19 26.800 24 63,551,582
Dec-11 10:37 422638 (1994 CB) 259 21.100 8 68,379,603
Dec-11 19:19 276891 (2004 RH340) 567 19.400 20 38,779,266
Dec-11 22:03 482505 (2012 TQ78) 541 19.500 13 15,747,078
Dec-12 03:19 (2020 WH2) 414 20.081 18 53,503,543
Dec-12 14:21 481817 (2008 UL90) 819 18.600 20 48,628,255
Dec-12 17:58 (2019 BN1) 247 21.200 16 34,055,974
Dec-13 05:05 289227 (2004 XY60) 714 18.900 38 63,784,246
Dec-13 06:00 (2003 YJ) 375 20.300 11 24,218,996
Dec-13 07:39 495615 (2015 PQ291) 1,240 17.700 22 53,809,584
Dec-13 08:27 (2019 XQ1) 36 25.400 9 7,035,406
Dec-13 11:58 523728 (2014 ON344) 136 22.500 18 61,324,868
Dec-13 15:36 (2001 YV3) 392 20.200 20 10,965,668
Dec-13 19:49 (2017 VT12) 358 20.400 11 20,004,989
Dec-13 21:33 163364 (2002 OD20) 747 18.800 6 61,674,877
Dec-14 00:36 (2016 YM) 164 22.100 11 8,020,597
Date Name Diameter Magnitude Km/s Distance
Dec-14 12:10 (2020 LK) 88 23.436 16 67,834,496
Dec-14 12:22 (2020 TG4) 413 20.087 5 32,782,152
Dec-14 14:31 (2020 RQ11) 148 22.311 9 24,769,027
Dec-14 15:03 234341 (2001 FZ57) 714 18.900 17 72,864,545
Dec-14 15:10 (2017 UG5) 24 26.300 7 43,428,547
Dec-14 16:21 (2017 KU34) 82 23.600 5 9,038,748
Dec-14 23:29 (2016 RB1) 9 28.300 10 48,904,607
Dec-15 15:16 (2017 BO31) 517 19.600 18 51,686,368
Dec-15 16:56 (2010 XR69) 36 25.400 20 23,902,809
Dec-15 21:02 465749 (2009 WO6) 1,562 17.200 17 62,185,879
Dec-16 09:27 (2011 UK21) 39 25.200 9 21,136,456
Dec-16 12:03 (2012 WM28) 37 25.300 8 34,660,517
Dec-16 13:14 (2020 VY1) 28 25.956 4 5,069,283
Dec-16 14:36 (2003 WP21) 216 21.491 16 44,091,400
Dec-16 17:30 138175 (2000 EE104) 358 20.400 7 39,326,824
Dec-16 19:13 (2018 VB4) 247 21.200 13 46,993,472
Dec-17 00:07 (2020 VN3) 368 20.341 26 37,768,852
Dec-17 01:50 (2020 RL) 43 25.003 6 40,252,007
Dec-17 05:38 (2020 OE2) 17 27.044 2 15,121,079
Dec-17 07:23 (2014 XU6) 68 24.000 17 19,713,921
Dec-17 07:50 138947 (2001 BA40) 819 18.600 10 62,476,279
Dec-17 09:10 (2017 UG) 14 27.500 8 42,645,514
Dec-17 09:51 (2009 WD11) 171 22.000 11 21,830,269
Dec-17 09:54 (2018 YG) 59 24.300 16 18,742,097
Dec-17 10:04 (2017 YS1) 7 28.900 9 34,622,307
Date Name Diameter Magnitude Km/s Distance
Dec-17 16:34 417217 (2005 YS) 517 19.600 13 32,178,693
Dec-17 16:43 (2019 TK5) 14 27.400 5 22,267,415
Dec-17 17:11 (2004 YA5) 130 22.600 20 9,804,114
Dec-17 17:18 (1998 KY26) 34 25.500 8 70,045,971
Dec-18 00:05 417201 (2005 XM4) 494 19.700 18 62,748,224
Dec-18 04:47 488490 (2000 AF205) 197 21.700 11 12,849,161
Dec-18 05:28 (2002 GZ8) 985 18.200 10 18,761,083
Dec-18 10:42 (2016 HL) 472 19.800 13 35,851,098
Dec-18 21:45 (2010 XD25) 312 20.700 26 44,576,014
Dec-18 23:19 (2020 EJ) 78 23.704 8 55,597,366
Dec-19 00:45 (2015 AF45) 45 24.900 7 15,517,663
Dec-19 01:07 428694 Saule (2008 OS9) 567 19.400 20 65,461,007
Dec-19 02:39 (2004 AC) 747 18.800 25 37,153,515
Dec-19 04:01 6037 (1988 EG) 783 18.700 14 50,046,485
Dec-19 04:54 (2020 WS5) 271 21.000 23 29,512,349
Dec-19 12:15 (2015 DZ53) 298 20.800 36 18,354,130
Dec-19 12:30 (2018 RU3) 108 23.000 13 34,010,337
Dec-19 14:45 (2013 XH17) 37 25.300 10 18,804,039
Dec-19 21:50 (2005 MF5) 197 21.700 28 73,422,759
Dec-20 00:06 (2014 YC) 156 22.200 14 36,350,327
Dec-20 04:05 (2012 YN1) 99 23.200 14 34,556,862
Dec-20 04:13 420262 (2011 KD11) 430 20.000 9 64,515,979
Dec-20 04:41 (2020 FG6) 16 27.091 6 43,691,430
Dec-20 05:37 (2019 ND7) 226 21.400 26 74,548,450
Dec-20 08:30 (2018 FW) 43 25.000 15 30,841,901
Date Name Diameter Magnitude Km/s Distance
Dec-20 09:27 (2014 WG365) 430 20.000 14 37,948,390
Dec-20 11:11 449107 (2012 VJ82) 494 19.700 17 27,155,166
Dec-20 11:25 (2018 WU1) 65 24.100 20 66,257,255
Dec-20 20:19 (2019 GO3) 130 22.600 7 27,740,268
Dec-20 21:52 (2020 WQ1) 113 22.893 12 15,278,066
Dec-20 22:19 497094 (2004 AH) 714 18.900 8 56,207,627
Dec-20 23:36 (2019 AY4) 136 22.500 21 47,421,914
Dec-21 01:30 (2015 YQ1) 11 28.000 8 22,766,033
Dec-21 08:18 (2017 XQ60) 57 24.400 16 4,148,129
Dec-21 10:15 (2016 YK4) 26 26.100 18 50,167,178
Dec-21 18:42 (2005 TE45) 94 23.300 1 64,702,950
Dec-21 18:42 (2020 OB1) 71 23.911 8 43,133,674
Dec-22 06:22 (2014 KV76) 271 21.000 13 55,529,571
Dec-22 09:17 (2020 AC) 20 26.700 17 62,266,246
Dec-22 10:35 (2019 KZ2) 226 21.400 17 39,485,742
Dec-22 18:06 (2016 LK49) 27 26.000 29 65,131,336
Dec-22 21:57 (2020 WZ1) 345 20.478 22 56,991,408
Dec-23 04:10 523633 (2009 XR2) 819 18.600 14 74,261,527
Dec-23 06:32 (2014 OV3) 99 23.200 7 19,647,577
Dec-23 12:56 (2019 YV1) 41 25.100 10 26,420,513
Dec-23 16:45 (2020 WN4) 139 22.457 10 23,302,054
Dec-23 18:17 (2020 NJ1) 125 22.689 10 40,835,018
Dec-23 18:18 (2020 OC7) 296 20.809 5 59,583,904
Dec-23 18:33 163902 (2003 SW222) 1,562 17.200 8 42,852,035
Dec-23 23:22 (2016 TR54) 179 21.900 10 28,318,007
Date Name Diameter Magnitude Km/s Distance
Dec-24 00:31 90147 (2002 YK14) 941 18.300 16 28,188,899
Dec-24 01:20 (2015 OM35) 164 22.100 8 34,882,382
Dec-24 09:09 (2005 YY1) 103 23.100 20 63,006,402
Dec-24 12:41 (2011 CL50) 13 27.600 3 1,178,966
Dec-24 14:35 (2018 GE3) 75 23.800 35 32,767,725
Dec-24 18:08 (2020 WD1) 80 23.664 1 21,278,857
Dec-24 22:32 (2017 YU5) 65 24.100 20 55,321,183
Dec-24 22:55 (2020 NS) 111 22.933 17 59,791,572
Dec-25 00:04 418849 (2008 WM64) 326 20.600 18 18,546,295
Dec-25 00:19 (2011 TO) 24 26.300 6 25,577,489
Dec-25 08:51 (2018 ER1) 33 25.600 3 24,496,385
Dec-25 09:29 (2016 JR33) 82 23.600 16 48,480,041
Dec-25 15:32 (2015 BW510) 312 20.700 13 59,806,589
Dec-25 16:31 (2013 YF) 103 23.100 19 26,957,771
Dec-25 16:40 (2020 BC16) 38 25.297 5 39,456,999
Dec-25 20:20 501647 (2014 SD224) 149 22.300 10 3,020,487
Dec-25 23:57 (2015 AH) 216 21.500 18 46,331,312
Dec-26 00:48 (2019 VT) 54 24.500 14 60,761,375
Dec-26 02:20 (2020 VM3) 288 20.870 7 44,068,886
Dec-26 06:04 (2017 YQ8) 52 24.600 21 36,092,049
Dec-26 14:25 (2008 XW2) 312 20.700 31 66,299,236
Dec-26 14:37 (2019 YS3) 49 24.700 6 17,838,412
Dec-26 21:58 (2012 XE133) 90 23.400 9 4,648,396
Dec-26 22:15 (2010 YO) 52 24.600 20 31,171,921
Dec-26 22:20 (2020 KR2) 20 26.612 6 27,969,593
Date Name Diameter Magnitude Km/s Distance
Dec-27 00:49 68347 (2001 KB67) 450 19.900 15 56,449,735
Dec-27 01:27 (2019 AO12) 33 25.600 11 14,047,679
Dec-27 04:10 (2014 YZ8) 78 23.700 19 48,068,788
Dec-27 06:32 (2007 SW2) 226 21.400 14 62,768,709
Dec-27 07:44 (2016 AF2) 11 27.900 5 2,800,460
Dec-27 09:06 (2019 AK3) 17 27.000 17 33,771,356
Dec-27 12:32 (2016 RW) 99 23.200 21 73,148,948
Dec-27 13:33 509352 (2007 AG) 411 20.100 20 55,136,707
Dec-27 18:48 (2018 DR) 15 27.300 5 61,208,360
Dec-27 20:53 351340 (2004 YC5) 1,032 18.100 29 70,082,456
Dec-28 01:30 (2016 VV2) 47 24.800 11 20,662,939
Dec-28 04:14 154330 (2002 VX94) 1,080 18.000 5 70,009,325
Dec-28 06:20 (2017 KG3) 49 24.700 16 59,461,187
Dec-28 08:13 (2009 YR) 11 28.000 7 19,726,735
Dec-28 09:13 (2020 WR5) 364 20.363 23 65,594,630
Dec-28 10:24 (2013 GE84) 541 19.500 17 42,786,424
Dec-28 19:45 (2017 YD8) 188 21.800 17 15,027,961
Dec-28 20:01 (2019 JY7) 12 27.700 6 36,056,631
Dec-28 23:35 (2018 WZ2) 12 27.800 18 62,555,038
Dec-29 00:46 162173 Ryugu (1999 JU3) 594 19.300 4 9,054,783
Dec-29 08:08 480883 (2001 YE4) 312 20.700 26 57,534,956
Dec-29 12:14 276409 (2002 YN2) 858 18.500 27 52,014,386
Dec-29 15:10 (2016 JP15) 247 21.200 22 70,888,844
Dec-29 20:35 (2020 WC5) 419 20.055 20 50,021,127
Dec-29 23:40 (2017 UP2) 430 20.000 14 27,215,274
Date Name Diameter Magnitude Km/s Distance
Dec-30 02:18 (2015 NJ24) 247 21.200 8 25,118,337
Dec-30 02:46 (2012 UK171) 57 24.400 5 5,940,907
Dec-30 04:57 (2010 YC1) 236 21.300 19 54,387,745
Dec-30 09:16 (2002 EC) 90 23.400 20 72,445,038
Dec-30 16:18 (2016 GL222) 30 25.800 10 42,518,580
Dec-30 18:25 (2006 YF) 271 21.000 7 49,149,244
Dec-30 21:11 310842 (2003 AK18) 494 19.700 17 27,575,587
Dec-31 05:48 (2010 PQ10) 216 21.500 22 67,474,996
Dec-31 16:00 (2015 YA) 14 27.400 6 25,580,244
Dec-31 16:35 (2012 YK) 108 23.000 16 30,209,305
Dec-31 21:32 (2017 RZ15) 16 27.100 19 56,159,763
Dec-31 22:03 (2019 AE3) 14 27.400 8 8,922,108
Jan-01 09:19 (2019 BF3) 41 25.100 12 39,824,035
Jan-01 09:26 (2015 XP54) 68 24.000 11 45,407,143
Jan-01 13:03 (2019 VB5) 2 31.700 5 21,847,577
Jan-01 23:42 (2018 OZ) 45 24.900 7 31,304,056
Jan-02 02:33 (2016 YS8) 226 21.400 18 71,590,838
Jan-02 03:56 (2020 TT7) 147 22.328 4 27,860,276
Jan-02 07:31 (2017 US) 26 26.100 3 31,980,061
Jan-02 07:33 (2019 AU6) 21 26.600 18 46,583,367
Jan-02 09:25 (2019 YB4) 19 26.800 7 6,452,698
Jan-02 09:47 (2020 WA5) 222 21.438 7 11,691,657
Jan-02 14:47 (2009 WN8) 39 25.200 9 35,641,229
Jan-02 18:55 (2020 AT) 39 25.200 9 21,610,373
Jan-02 20:26 (2016 PN) 358 20.400 18 56,392,979
Date Name Diameter Magnitude Km/s Distance
Jan-02 20:30 (2020 PE3) 61 24.228 14 69,505,596
Jan-02 21:38 (2009 TK12) 326 20.600 13 37,817,511
Jan-02 23:27 (2014 YD42) 156 22.200 23 52,916,866
Jan-03 01:03 (2020 JK2) 15 27.260 10 42,511,825
Jan-03 12:57 (2019 DJ1) 19 26.800 4 21,008,012
Jan-03 18:22 (2003 AF23) 284 20.900 16 6,992,589
Jan-03 20:50 (2019 QW2) 47 24.800 5 3,367,851

Last Week

Last 7 Days
Date Name Diameter Magnitude Km/s Distance
Nov-29 02:15 (2016 HF2) 26 26.100 6 26,156,457
Nov-29 05:08 153201 (2000 WO107) 594 19.300 25 4,302,884
Nov-29 05:25 (2020 WX3) 15 27.256 8 2,384,749
Nov-29 06:27 (2020 WR3) 44 24.954 11 8,827,687
Nov-29 08:38 (2013 BT18) 90 23.400 21 22,439,477
Nov-29 14:14 (2020 WC2) 43 24.984 22 5,478,724
Nov-29 14:16 (2020 KJ1) 23 26.357 5 33,425,123
Nov-29 17:39 (2017 WY14) 171 22.000 15 59,877,292
Nov-29 22:14 (2020 WG1) 168 22.043 12 53,918,458
Nov-30 00:00 (2007 ML24) 594 19.300 26 74,329,318
Nov-30 02:18 (2012 SA22) 1,080 18.000 15 67,314,691
Nov-30 03:22 (2020 VT5) 50 24.656 16 6,791,029
Nov-30 04:38 (2020 XB) 38 25.282 12 1,124,499
Nov-30 05:17 (2006 UA216) 82 23.600 13 40,589,043
Nov-30 05:25 (2020 VU4) 61 24.240 5 15,101,526
Nov-30 06:51 (2020 WY3) 12 27.741 7 2,282,758
Nov-30 07:05 (2018 VJ10) 8 28.600 21 38,503,857
Nov-30 07:52 (2020 TL10) 115 22.862 12 16,554,917
Nov-30 08:47 (2020 VF3) 450 19.903 29 35,895,366
Nov-30 10:36 (2017 QB2) 57 24.400 17 60,418,409
Nov-30 12:12 523808 (2007 ML24) 594 19.300 26 74,329,318
Nov-30 12:12 (2011 WC39) 103 23.100 9 25,551,230
Nov-30 14:34 (2015 XW129) 171 22.000 15 52,301,176
Nov-30 15:39 (2020 VE6) 82 23.604 8 18,251,154
Nov-30 20:00 (2016 LV8) 450 19.900 18 34,712,011
Date Name Diameter Magnitude Km/s Distance
Nov-30 23:23 (2020 TE7) 70 23.947 6 10,993,710
Nov-30 23:42 (2012 XP134) 14 27.500 16 36,870,799
Dec-01 01:49 435404 (2008 AT28) 899 18.400 2 71,616,268
Dec-01 02:56 66272 (1999 JW6) 1,635 17.100 25 61,318,535
Dec-01 04:09 (2004 BV18) 28 25.900 10 34,281,257
Dec-01 06:03 (2007 YF) 47 24.800 10 27,982,433
Dec-01 08:47 (2020 SO) 8 28.775 4 50,485
Dec-01 11:30 (2020 WE3) 35 25.465 7 10,058,839
Dec-01 13:38 (2020 VM6) 119 22.784 10 35,864,421
Dec-01 15:51 (2010 WH1) 25 26.200 17 52,630,101
Dec-01 17:39 (2020 UF7) 47 24.791 0 11,981,192
Dec-01 19:56 (2012 XN2) 226 21.400 28 55,926,645
Dec-01 20:13 (2020 VQ5) 48 24.751 12 7,551,271
Dec-02 00:00 (1999 JE1) 450 19.900 21 62,130,426
Dec-02 01:38 (2020 SC1) 246 21.213 3 41,591,305
Dec-02 04:02 (2018 KM2) 358 20.400 7 47,277,691
Dec-02 05:00 378160 (2006 WX1) 541 19.500 7 43,931,660
Dec-02 06:09 154275 (2002 SR41) 411 20.100 11 42,561,434
Dec-02 07:59 69230 Hermes (1937 UB) 1,360 17.500 13 39,141,471
Dec-02 09:41 508774 (1999 JE1) 472 19.800 21 62,130,425
Dec-02 11:23 (2015 KT120) 41 25.100 11 28,195,907
Dec-02 13:43 (2020 WW4) 196 21.707 18 44,490,374
Dec-02 15:48 (2019 UP13) 86 23.500 13 67,570,185
Dec-02 18:32 (2015 WZ12) 24 26.300 25 69,792,736
Dec-02 19:45 (2018 VB1) 78 23.700 9 10,368,258
Date Name Diameter Magnitude Km/s Distance
Dec-02 20:46 (2016 UA41) 57 24.400 6 49,765,275
Dec-02 20:54 (2019 XH2) 7 28.900 6 6,171,921
Dec-02 21:06 (2010 TK7) 298 20.800 15 32,501,673
Dec-02 23:53 418846 (2008 WJ60) 236 21.300 13 72,059,943
Dec-03 01:15 (2020 WE1) 153 22.248 23 21,430,117
Dec-03 01:55 (2013 XZ20) 108 23.000 14 51,751,647
Dec-03 02:12 (2005 FN) 18 26.900 23 62,079,209
Dec-03 03:11 (2020 SS7) 125 22.690 6 14,504,529
Dec-03 03:11 (1998 VD32) 156 22.200 6 14,507,518
Dec-03 05:04 (2017 MA4) 819 18.600 27 48,678,195
Dec-03 06:27 (2018 WB2) 298 20.800 27 71,214,701
Dec-03 06:53 (2013 WS43) 124 22.700 18 54,621,279
Dec-03 07:08 (2012 LD1) 188 21.800 9 39,840,765
Dec-03 07:57 (2018 RF2) 10 28.200 11 48,786,419
Dec-03 08:46 (2016 WF7) 7 28.800 22 71,838,088
Dec-03 10:06 (2020 VZ6) 41 25.100 9 348,993
Dec-03 11:04 (2020 TQ7) 171 22.009 6 21,409,329
Dec-03 13:04 (2020 WB4) 21 26.574 11 581,623
Dec-03 14:02 (2015 XA378) 28 25.900 26 37,719,321
Dec-03 14:36 (2003 YS17) 206 21.600 8 34,550,165
Dec-03 14:59 (2016 OP5) 298 20.800 15 19,128,715
Dec-03 20:27 (2020 WD5) 155 22.215 30 6,506,026
Dec-03 22:16 (2020 WP) 62 24.212 11 3,634,270
Dec-03 23:53 (2020 WF3) 83 23.582 8 23,161,015
Dec-04 00:00 (2009 WZ104) 358 20.400 20 71,919,953
Date Name Diameter Magnitude Km/s Distance
Dec-04 00:42 490581 (2009 WZ104) 430 20.000 20 71,919,849
Dec-04 02:08 (2020 TM4) 181 21.874 6 30,023,458
Dec-04 03:00 (2020 MB1) 185 21.826 28 74,789,893
Dec-04 03:32 (2019 LW4) 15 27.300 14 36,009,121
Dec-04 06:58 (2020 WS2) 51 24.626 11 4,643,067
Dec-04 07:41 (2020 WQ) 64 24.121 8 8,530,721
Dec-04 08:00 (2019 WS2) 142 22.400 31 69,881,447
Dec-04 12:10 (2019 WZ5) 43 25.000 20 43,300,230
Dec-04 12:14 (2020 WR4) 25 26.151 8 4,112,943
Dec-04 12:37 (2020 WC3) 144 22.378 9 25,688,073
Dec-04 16:05 (2016 VO1) 108 23.000 11 61,831,368
Dec-04 20:46 (2020 WO) 30 25.817 6 3,979,180
Dec-04 22:49 (2020 JZ2) 32 25.629 9 33,306,491
Dec-05 00:39 (2016 AU65) 113 22.900 12 35,501,357
Dec-05 10:25 (2020 BF10) 15 27.227 8 49,893,720
Dec-05 14:45 (2020 WP3) 47 24.791 6 17,375,448

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blog/aardvaark/neo.txt · Last modified: 2020/12/06 00:01 (external edit)

  • ISSplugin-autotooltip__default plugin-autotooltip_bigInternational Space Station

    This page has a portal through which you can view the current location of the International Space Station, updating in real-time. The tracker itself comes from the European Space Agency (ESA).

    Part of the tool doesn't seem to be working properly yet, raising an error when the widget first loads. A possible explanation for the error is detailed below. There is also a handy link to get email notifications direct from NASA when the ISS is visible in your night sky.
  • Mars Weatherplugin-autotooltip__default plugin-autotooltip_bigMars Weather Reports

    These reports are provided by NASA's InSight lander in the south-west corner of Elysium Planitia. Daily readings are usually a couple of days behind reality.

    This page is updated as new data is detected.

    Last update: 10:35 Sat. Dec 5th, 2020 GMT
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    Orbital Calculator Current Version This is a portable application, meaning there is no installer. Just unzip into a folder and run the executable. Since it is portable, it can be run from a USB stick.

    A full description and a list of the features are available
  • Orbital Calculatorplugin-autotooltip__default plugin-autotooltip_bigOrbital Calculator

    I needed to calculate orbital characteristics for any orbit around any gravitational mass (because I write sci-fi stories), so I wrote this program because I'm a programmer and I'm too lazy to do it by hand all the time. The program has expanded over the last few years, sometimes from suggestions by other writers. I make it freely available and as simple to use as possible. It now has a list of functions as long as your arm (assuming you're not a tentacle user), and the numbe…
  • Cookie Policy & GDPRplugin-autotooltip__default plugin-autotooltip_bigCookie Policy & GDPR

    There are NO tracking cookies on this site!

    The Cookie policy is straightforward. This site only uses cookies that are required to make your experience of using this site better, and only uses session cookies (see exceptions below). Session cookies are deleted when you close your browser.
  • Book Reviewsplugin-autotooltip__default plugin-autotooltip_bigBook Reviews

    Here you can find all the book reviews, broken down by genre, and further subdivided by author. If you want me to review your novel, please read my Rules on Reviewing.

    * Science-Fiction * Fantasy * Non-Fiction
  • Contactplugin-autotooltip__default plugin-autotooltip_bigContact

    If you have a burning desire to contact me, use the discussion form below. Anything you say remains private between you and me.