TanDEM-X Blog
 
 

Initial reports of success from the control room

13. October 2010, 17.01
We are off again; the team at the German Space Operation Center (GSOC) and their colleagues from EADS Astrium gathered two days ago in the control room to manage the transition to close formation flight. We began the first manoeuvre on Monday, 11 October 2010; this is referred to as the ‘drift start’ manoeuvre, which gives the TanDEM X satellite (TDX) the necessary momentum to close to a distance of one kilometre behind TerraSAR X (TSX) within a few days.
Harald Hofmann
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Harald Hofmann
 
 

TanDEM-X ground segment kicks off!

02. August 2010, 10.20
The successful setup of the 'wide' flight formation between the TerraSAR-X and TanDEM-X satellites marked the beginning of the 'TerraSAR-X Add-On for Digital Elevation Measurements' mission in its literal sense: Now, with both satellites flying as a team – three seconds apart – and seeing the same region of the Earth's surface, tricky instrument commanding is no longer needed to acquire interferometric data sets. Ordering, planning and commanding of the synchronous acquisitions, as well as reception and, in particular, processing of the data sets from both satellites are performed completely automatically.
Birgit Schättler
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Birgit Schättler
 
 

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

12. July 2010, 15.35
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.
Ralph Kahle
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Ralph Kahle