ARISSat-1/KEDR Goes Silent

ARISSat-1 ModelReception reports indicate that ARISSat-1/KEDR has stopped transmitting on Wednesday, January 4, 2012. The last full telemetry captured and reported to the ARISSatTLM web site at 06:02:14 UTC on January 4 were received from ground stations as the satellite passed over Japan.

See: (full telemetry display)
See: (condensed telemetry)

Telemetry reports showed that the temperature aboard ARISSat-1/KEDR had been rising as atmospheric drag began to affect the satellite. Final temperatures received via ARISSatTLM reported this data:

IHU           75 ° C / 167.0 ° F
PSU           76 ° C / 168.8 ° F
RF            88 ° C / 190.4 ° F
Control Panel 61 ° C / 141.8 ° F
Experiment    64 ° C / 147.2 ° F

Tracking data from Space Command gave a Predicted Decay Time 0700 GMT +/- 3 Hours on January 4. Telemetry report narrows the impact time window to about 4 hours. The predicted decay location is 12.7° S, 354.3° E, an open part of the South Atlantic, well west of Angola. Send reports to the amsat-bb If you heard the satellite, even briefly, after 0600 UTC. This will help confirm the actual impact point.

Stations receiving telemetry from ARISSat-1 at any time over the last few months, please forward all of your .CSV telemetry files to telemetry AT

The Official ARISSat-1/KEDR web page: See DK3WN SatBlog for last signal report received by Tetsu san, JA0CAW in Japan: p=25125

[PE0SAT thanks the ARISSat-1/KEDR Team for the above information]