TanDEM-X Blog | 16. July 2010

Approach in orbit; busy times in Neustrelitz

DLR Bodenstation Neustrelitz

Tirelessly, TanDEM-X is acquiring data while moving ever closer to the TerraSAR-X satellite. As yet, the first flight formation is not set up and thus no interferometric processing is possible. All data received by the TanDEM-X ground station network are transferred to Neustrelitz, where they are processed into SAR images like the operational ones from TerraSAR-X. read more

Tags:

TanDEM-X Blog | 12. July 2010 | posted by Ralph Kahle | 5 Comments

Art in space – or, how to set up a formation

On its launch date, 21 June 2010, roughly 16,000 kilometres separated TanDEM-X from its twin satellite, TerraSAR-X. Now, that distance has shrunk to just 2000 kilometres. The time has come for the relative movement between the two satellites to be slowed down, and for them to be set up for formation flying. To accomplish this, the Flight Dynamics Group at the German Space Operations Center (GSOC) will carry out a total of 10 orbital manoeuvres over the next eight days. read more

TanDEM-X Blog | 24. June 2010

Uncanny but true – “Everything is running like clockwork”

The fourth mission day has dawned, and so far everything is running like clockwork. It sometimes seems almost uncanny to us, and an occasional funny remark about our now being able to slowly turn off the simulator makes the rounds. But in reality, we are obviously very pleased and happy about ‘our’ TanDEM-X. Because everything is running so smoothly, we are able to complete our activities earlier than planned and have even been able to slightly shorten our original timetable, so that we will have less need for a night shift. read more

Tags:

TanDEM-X Blog | 24. June 2010

Commissioning of the radar instrument – everything still ‘green’

The commissioning of the satellite went smoothly. Now, the radar instrument team must start their work. Each of the electronic units that make up the radar must be turned on one by one and tested. The instrument telemetry, received at the ground stations in Weilheim (Germany), O'Higgins (Antarctica), Svalbard (Spitsbergen, Norway), and St. Hubert and Saskatoon (Canada), will be sent to the control room in Oberpfaffenhofen for evaluation. read more

TanDEM-X Blog | 22. June 2010

Shift work in the control room

As Mission Operations Director at the Space Operations Center in Oberpfaffenhofen, I am responsible for operation of TanDEM-X satellite. The first few days after the launch are always the most tense, because you obviously cannot know whether the satellite has weathered the launch well. To cover this phase as effectively as possible, we work the first week in shifts around the clock – to be ready, just in case. In this and the next few blog posts, I will report on the atmosphere and duties in the control room. read more

TanDEM-X Blog | 21. June 2010 | 2 Comments

‘The baby cries!’ We have a satellite in space …!

But first things first – here the events of the first 100 minutes:

L +00:00:00 (04:14:03 CEST)
‘Lift off’ – the Dnepr is ejected from its silo by a gas generator and the launcher’s engines ignite to begin the flight into orbit in a southerly direction.)

L +00:01:50 (04:15:53 CEST))
The first launcher stage separates. On the launch video, we see a white cloud and, shortly after that, the spent rocket stage falling away. read more

TanDEM-X Blog | 21. June 2010 | 1 Comment

That was smooth!

4:39 am Tons of us collected to view the stream and the control room from the bridge. A textbook launch, that was. Mission operations have also just confirmed separation. (Click on full article for further updates) read more

TanDEM-X Blog | 21. June 2010

Intensity picking up

This place, the German Aerospace Center at DLR Oberpfaffenhofen (close to Munich) has a serious trekkie air. As you walk into the building where the action is tonight, chairs and shiny lights have been set up. This is where the infotainment programme will be streamed live. But take a couple of turns around nondescript corridors, and you’re on the bridge — they actually call it that (hence the trekkie reference). read more

TanDEM-X Blog | 16. June 2010

Two successful launches – that’s motivating!

There were recently two successful launches (our congratulations!) – the payloads of the Prisma and Picard missions were launched together from Yasny. We followed these events via their live streams online. As will be the case with TanDEM-X, a Dnepr launcher was used. Problems with the launcher would likely have affected our launch date. So obviously, we were relieved about the smooth launch. And TanDEM-X is next in line! read more

TanDEM-X Blog | 11. June 2010 | 2 Comments

TanDEM-X will be swallowed by a crocodile

Masskottchen

As our loyal readers already know, the TanDEM-X satellite is installed in the launcher’s upper stage and ready for transport. The Dnepr rocket is fuelled and waiting in the launch silo a few miles away. But how does the upper stage get to the launcher? Using a special vehicle, naturally. read more