Category Archives: technology

10th Anniversary of the International Space Station

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If everything goes according to plan, the Space Shuttle Endeavour – STS-126 will be launced on 14 November with a comprehensive 15 day schedule to upgrade the International Space Station.

The station currently houses 3 crew members and that is all that is possible at the moment. The Endeavour crew will prepare the station for the 6 person crew it was meant to have from the outset. Also, a repair of the solar arrays is in the program.

The solar array on one side of the station is using more power than anticipated for rotating the array to maximise the efficiency. It turns out that two bearings lack lubrication, and this will be repaired during three space walks.

Back inside, the crew will spend a lot of time unpacking new crew quarters, a new toilet, a new kitchen, a new refrigerator and new exercise equipment, not to mention the science experiments.

In addition to this a new water recycling system will be added, in order to reduce the station’s dependency of Shuttle missions. After all the Shuttle fleet is planned to be retired in 2010.

On top of this, it is good to see the station becoming fully operational at its 10th anniversary. The first module was launched on November 20th 1998, beginning the construction of the station.

If I can find the time, I will listen for the shuttle just after the launch to see if I can catch a few seconds of radio communication, and I will listen for ISS communication during the whole mission – time permitting.

Also, when all this goes on, and if you have a clear sky I recommend all you scifi geeks to go out and see a *real life* space station. Info about visibility can be found at

Heavens-Above

Seeing a real life space station or space ship beats the fictional one, no matter how good the story is.

Space tourist heard on Earth

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This morning I heard Richard Garriot talking back to the Russian Ground station, in English.

I can now claim to have heard a space tourist talking back to Earth. He was using the standard frequency, 143.625 MHz, for communications between the International Space Station to the Russian ground station.

He was also active yesterday (I was at work so did not hear it) sending Slow Scan Television – still pictures – on the amateur radio frequency of 145.800 MHz. He was heard by several satellite listeners.

I will see if I can get more listening done today, there should be at least one more good pass of the ISS over here today.

If possible (connections) I wil make a recording.

It should be possible to hear the transmissions with a decent quality scanner receiver, so why not try for yourself ?

More space comms

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Today the Soyuz TMA 13 was launched from Baikonur. At the first two orbits signals were heard here in The Netherlands and in Germany on their downlink frequency 121.750 MHz. signals were quite strong for a while.

I did not understand much of it since the comms were in Russian. One word I did recognize the Russian word for “good” (or OK) was used frequently.

The communications can only be heard for about 5 minutes, because the spacecraft need to be “visible” for both my position and the ground station in Russia.

Nils in Germany made two mp3 recordings , with his permission I have uploaded them :

file1 and
file2

Some Thoughts on Solar Energy

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In the light of the previous post : “Breakthrough in Solar Energy ?” I would like to express some thought about generating and using energy.

I have, for some time, been thinking of how we could make better, more efficient use of the energy we have, one point being that distribution of energy over large distances is rather inefficient, and the energy should be harnessed more locally. For example, combine the energy generation for every house with regionally a generated reserve.

First of all, building the infrastructure, power lines, gas pipes, is expensive and energy consuming in itself.

Further, reliability. Local energy generation would make society less vulnerable to failures of the energy infrastructure (for any reason whatsoever).

Personally I would like to be at least partly self-sufficient when it comes to generating energy. and solar is the only viable energy form in that respect.

OK, we have to look into the energy efficiency of using solar cells, since the production of those use up a lot of energy.

I would think that a combination of solar cells and wind turbines would be the best for local energy generation.

More about this later ….

Breakthrough in Solar Energy ?

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It looks like we have come one step closer to harnessing solar energy more efficiently. The article :

‘Major discovery’ from MIT primed to unleash solar revolution

caught my attention today. It concerns a new catalytic material making the electrolysis of water into hydrogen and oxygen in a very efficient way, storing the solar energy collected during the day, for use at night.

The process mimics photosynthesis, the way plants store energy from the sunlight.

According to the article the technology is so simple that it could be implemented within 10 years, imagine every house generating solar electric power during the day and using the stored surplus energy duing the night.

Thoughts on “The 4400” TV series.

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I have been watching 4th and final season og “The 4400” – here are a few thoughts on the series.

The concept of the series :

Over a period of about 60 years 4400 people have mysteriously disappeared. Suddenly, all reappear brought back in a giant ball of light.

The scene does, to a certain extent, remind me of “Close Encounters of the Third Kind”, but “The 4400” continues where, “Close encounters” end with a lot of people coming back.

As some of the returnees show unusual abilities, fear and suspicion arises.

What I particularly like in this series is a continued story through the series, each season always ending with a completely new – and often surprising – situation.

Characters are believable, most episodes feel well written, produced and acted.

Some people seem to complain about short (in this case 13 episode) seasons, but I think a lot of series may benefit from the shorter seasons, giving writers – and the whole team – the possibility of giving their best without running out of steam.

Fantasticon2008, Copenhagen, 26 – 27 April

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This is a small Danish convention with a few hundred people attending. Only foreign Guest was Norman Spinrad. The con was held in the “Vanloese Kulturhus” (cultural house) in nice large rooms and a terrace. Even the weather cooperated and we could sit outside chatting along between the programmed events. I arrived there after a long (12 hour) drive and a few hours of sleep.

On Saturday I went to the interview with Niels Brunse who has translated a large amount of English language books into Danish, and also written stories of his own. He was, among other subjects, talking about the difficulty of making a good translation, something I can relate to in a limited capacity, having attempted translation in both directions between Danish and English. Some elegant words or phrases in one language translate *very* poorly into the other.

Sunday had a surprise guest speaker, the Danish physicist Holger Bech Nielsen, giving a presentation of his version of the “theory of everything” : “Random Dynamics”. He is a *very* lively lecturer, and it is always fun to see him, his enthusiasm for the subject is just radiating from him. This was the first time I saw him “live”, the other times were just on television.

Arthur C. Clarke :

For me the best part of the programme on Sunday was the panel discussion about Arthur C. Clarke, the panel consisting of 3 Danish fans and the guest speaker Norman Spinrad. Spinrad had sopme cooperation with Clarke in the 1960’s and could tell us that the final scene of the movie “2001 – A Space Odyssey” was in fact not the one we saw in the movie. Clarke had envisioned a scene with very beautiful aliens, but it was not technically possible to do to his satisfaction – meaning the scene had to be rewritten.

Clarke’s relatively optimistic view of the future has by some been regarded as naive, but it most probably is an expression of his dream about the future.

Finally there was a discussion of Clarke’s unusual combination of hard science fiction and the “mystical” (for lack of a better word), something very prominent in “2001”, but it is in much of his other work.

Of course, you cannot mention Arthur C. Clarke without talking about his strong influence on science and technology (as well as science fiction), interesting to see how many of his early thoughts have come true already.

All in all a very nice week end , I will try to make it again next year.

More real life space communications (2)

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The Soyuz spacecraft has successfully docked to the ISS today.

Yesterday I listened for radio communications from the Soyuz, and was rewarded with hearing a few exchanges in Russian. They were likely talking to the ground station in Moscow. The frequency for Soyuz is 121.750 MHz, if any of you should have a scanner receiver. The signal was quite strong, even with a wrong sized antenna, so it should not be too difficult to hear.

Good hunting if you try – They will probably be radio-active for a day or two when they leave the ISS and return to Earth.

In the meantime , if you are in Europe, you can listen for the ISS , in the rare cases when they talk back to Moscow, on the frequency 143.625 MHz.

Jules Verne has arrived at the International Space Station

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Yes – it is true …

The first ATV – Automatic Transfer Vehicle – has arrived and doced with the ISS. The name given to this ATV is “Jules Verne” , honouring the famous author (1828 – 1905) of old Science fiction classics like “Around the World in 80 Days”, “Journey to the Centre of the Earth”, “From the Earth to the Moon” and “20.000 Leagues Under the Sea”.

The ATV is a European contribution to the ISS, along with the Columbus module – launched with the Space Shuttle and added to the ISS in February. The spacecraft pioneers the use of automatic docking, absolutely no human intervention. Only option would be to break off the docking procedure with a “go away” order. The ATV is designed to transport supplies to the station , and – as its final act – be filled with the garbage from the station and sent back into the Earth’s atmosphere. We could call it a cargo ship and an advanced garbage truck – combined with an incinerator.

Another function of the ATV is as a booster for increasinf the orbital altitude of the ISS, since the station is slowly being dragged towards a lower orbit due to that fact that there is still a *tiny* amount of atmosphere up there.

Read more about the ATV here

Last year I went with a friend to visit ESTEC’s space exhibition in The Netherlands. During a tour of the Estec facilities we got to see the Columbus module and the ATV, as they were being tested at the time. Nice to have seen real life spacecraft – knowing that both the station module and the ATV are safely orbiting the Earth.

More info at ESA’s website

More real life space communications

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When STS122 had just been launched, I went out to see if I could spot it and the ISS. The ISS arrived right on time and was *very* bright and easy to see (I missed the Shuttle, though). I had also brought my scanner radio receiver with me, and just before the ISS went into the Earth’s shadow , I heard a carrier wave for a few seconds , followed by [chorosho] (Russian for “good”) and a few more words in Russian, since they were communicating with a ground station in Russia.

In the first few orbits after launch of the space shuttle(s) and the last few orbits before the re-entry (landing) the shuttle uses the frequency 259.700 MHz (AM) for clear voice communications.

A few weeks later, when the STS-123 was launched, I joined a group listening for the Shuttle “Endeavour”. but since the high power (10 Watts) transmitter of the spacecraft was out, they were only transmitting with the low power (0.25 watts) transmitter. with my simple antenna and a long cable in to the receiver the signal was lost here, but a few other people around in Europe did hear them.

Since then I have had a preamplifier mounted at the antenna , so the loss in the cable has been compensated.

In the last few orbits before re-entry I listened for Endavour again – and even with their low power transmitter it was audible here. Signals were weak and noisy, but a few sentences were clearly heard here. Next time I will have to do some recordings.