First-MOVE

First-MOVE

The first satellite built at TU Munich was a cooperation between the German Aerospace Center (DLR) and the Chair for Astronautics (LRT). The 10x10x11.3 cm cube-shaped nanosatellite launched on Nov 21st 2013 from Yasny, Russia into a sun-synchronous orbit. The primary mission ended in late December the same year but First-MOVE continues to transmit its Morse beacon every minute on 145.970 MHz.

The Picosatellit has been designed as a platform so that the satellite can be adapted by small changes to the respective mission. First MOVE will be the first in a series of CubeSats. Its payload were solar cells from EADS Astrium. These were tested and verified under extreme space conditions.

More information and the history can be found on this website: https://www.move2space.de/First-MOVE/

History

From November 26. to On December 21st 2013, we receiving data beacons from First-MOVE. After that we could not receive any. In contrast to the nominal mode in which CW beacons and AX.25 beacons alternate every 60 seconds, we are heared only CW beacons every 60 seconds. After trying many different approaches to reset our on-board computer via telecommands we re-analyzed our current options. This analysis resulted in the conclusion, that the on-board software has sustained irreparable damage. The fact that we are receiving CW beacons every 60 seconds indicates, that both the transceiver and the power supply are functioning properly. For the transceiver to return to the 60 second CW beacon mode, it has to be power cycled, since this mode cannot be activated by the on-board software. This means that there was definitively an interruption in the power supply. In case of an interruption, the computer should deactivate the 60 second CW beacon mode as the first task during the boot sequence. As this has obviously not happened, the only conclusion is, that the computer is not getting through the entire boot sequence, probably because it was damaged due to an erroneous write process on the memory chip. Since there is no way to upload new software to First-MOVE we see no possibility to continue the mission and perform the planned experiments. It seems that First-MOVE has become inactive after a very short lifetime.

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