[amsat-bb] HO-68 Status
alankung at public3.bta.net.cn
Fri Jan 14 08:41:56 PST 2011
In this week I received many reports from all over the world about faults of HO-68
telemetry beacon. After we analyzed situation of the satellite, we think that
the software of payload management MPU was not running properly, the communication
of onboard data bus between payload management MPU and the satellite management
unit was stopped because of the software crashes. It led to the beacon problem
and abnormal switch of transponder.
Today we switched the satellite into safety mode at 0300Z , turn off most of onboard
units, and then we re-powered up at 0440Z, the satellite was back to normal operating
mode, so far the beacon operates normally.
We will not upload command to the satellite for transponder operating skeds of next
week, we will monitor continually in next week. Please send your report if you find
any abnormal operation of HO-68.
Alan Kung, BA1DU
HO-68(XW-1) Project Manager
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