Musings of a Babylon Lurker

10th Anniversary for ISS

Thursday, November 20th, 2008 | Uncategorized, space, technology | No Comments

10 years ago today, on 20th November 1998, the first module of the International Space Station, the Russian Zarya module was launched.

At the moment of writing the ISS passes above my head (nearly), and an amateur satellite listener/tracker has strong signals coming down on the S-band (2217.5 MHz).

Since then the ISS has been built up *very* slowly, mainly due to the lots of maintenance of the Space Shuttle fleet, and of course the re-entry failure of Columbia.

Right now the crews of ISS and Endeavor are busy repairing solar panels and installing living quarters for 3 more people, making the ISS ready for what should have been the normal crew of 6.

I am looking forward to seeing the ISS fully operational.

Tags: ISS

Chandrayaan 1 lets Lunar impactor on the loose

Sunday, November 16th, 2008 | science, space, technology | No Comments

The Indian Moon probe Chandrayaan 1 has successfully entered into its operational orbit about 100km over the surface of the Moon.

On Friday the Moon Impact Probe was released for a crash landing near the Moon’s South Pole. While diving the impactor sent images and telemetry back to the orbiter, those will be relayed back to Earth at a slower pace. The descent took about 25 minutes and the data will be relayed in the next few days.

Instruments are beginning to be activated, and a new chapter in the lunar exploration is beginning.

The probe has already sent some very good images back, see link below.

Full story from

Spaceflight Now

ISRO’s Chandrayaan website

Lunar images from Chandrayaan

Tags: moon, space probe

“When the Power goes …. Chaos Reigns” (J.C. Hutchins)

Thursday, November 13th, 2008 | technology | 1 Comment

- or at least the Internet connection disappears.

This evening I have been powerless for a few hours. I was just taking a break and should be starting my daily post when the lights first faded for a few seconds – then went out. DSL-Modem, computers radio and TV etc – the whole house was dead.

Now what ? since this is quite unusual for this area I first looked out of my windows, and the flats in the next street had lights on – looked to the other corner – more lights. Went to the other side of the flat : a dark area for some miles/km – where there would normally be a sea of lights.

I found myself in one corner of a dark area, with light on two sides. Hmmm. I do not know exactly what happened, but my guess is that a transformer station went up in smoke – likely due to an overload – it can happen if someone digs into a cable (seen that before).

Find a flashlight – I have one or two LED flashlights around , talk to neighbours, one had a non working flashlight – fortunately it just needed new batteries, and she had spares.

No lights, no reading, no tv , no computers, and certainly no internet.

Actually, I don’t mind the dark, then the stars become visible. Unfortunately the stars are blocked by “The Great Northern European Nebula” , aka clouds, so no luck there. Well – I was a little tired, so had an excuse to take a rest.

It took a few hours for the power to return here, so no real harm done.

Funny how much we depend on electricity for our daily activities nowadays. Make me think that I should have some backup power system. Not easy in the flat, but at my house “back home” – that is another matter. I should plan to make some kind of renewable energy generation there, so it is ready when I return to my home country.

Tags: events, technology, vulnerable

Chandrayaan 1 enters orbit around the Moon

Sunday, November 9th, 2008 | science, space, technology | No Comments

First the Americans and the Russians, then the Japanese and Chinese. Now the Indian Space Research Organization (ISRO) has aimed for the Moon. India is now the fifth country to reach the Moon. Yes, the European Space Agency has done it, too, but that is a consortium of 17 countries, though the size of the population is comparable to that of the USA.

The space craft is “Chandrayaan 1″. The name means “Moon Craft” in the ancient Sanskrit” language of India.

What I like is that the Indians, unlike the Chinese and Japanese, have invited other countries to contribute instruments to the probe. More than half of them are Indian, but NASA has two sensors, ESA has three sensors and Bulgaria has contributed a radiation sensor.

Chandrayaan 1 will help create a map of mineral concentrations all over the Moon, paving the way for the decisions on where to send (manned) expeditions to the Moon.

This and other collaborations is what I think has to be done. Space exploration is expensive, and a single country, however rich, cannot afford to go it alone.

More information :

Spaceflight Now

ISRO

Tags: moon, space probe

Setting up a “new” system with Linux

Saturday, November 8th, 2008 | linux, technology | No Comments

This week end I am going to re-establish a somewhat faster Linux machine than the one I am writing this post on (1GHz Pentium 3 gets rather sluggish when Flash is running in the browser).

At some stage I installed Arch Linux on that machine with a Sempron processor – it worked fine for a while, then apparently due to the “rolling update” something went wrong, and I lost the graphical setup.

Now, I am no Linux guru, so decided to do it the old fashined “Windows- way” – reinstalling. Oops. with a mixture of parallel and serial ATA the “#&/”/&¤% thing could not boot. What I plan to do ? install only serial ATA disks, install OS , transfer data from the PATA disks via USB – and that should do it.

I am planning on using Ubuntu.

Tags: linux, pc, personal

10th Anniversary of the International Space Station

Tuesday, November 4th, 2008 | anniversary, science, space, technology | No Comments

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.

Tags: ISS, Space Shuttle

Space tourist heard on Earth

Tuesday, October 21st, 2008 | space, technology | No Comments

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

Sunday, October 12th, 2008 | space, technology | No Comments

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

Tags: comms, space

Some Thoughts on Solar Energy

Saturday, August 9th, 2008 | solar energy, technology | No Comments

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 ….

Tags: solar energy

Breakthrough in Solar Energy ?

Saturday, August 9th, 2008 | solar energy, technology | No Comments

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.