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AO-40 Special Bulletin



SPECIAL BULLETIN

AO-40 TELEMETRY TRANSMISSIONS STOP; DEVELOPMENT TEAM INVESTIGATING

December 13, at 1123 utc telemetry transmissions from AO-40 stopped
while
work on the 400 N propulsion system was in progress.  An investigation
by the
AO-40 development team has begun.  They are now waiting for certain
on-board
software events to occur on Saturday afternoon, December 16.  These are
programmed to start a spacecraft emergency routine called
”command-assist•
which attempts to re-establish communications.  This offers the best
chance
of recovering evidence of the incident which made the telemetry
transmissions
stop.  When more information becomes available, we will pass it along.

Karl Meinzer, DJ4ZC, Project Leader, and Ray Soifer, W2RS, Executive
Vice
President, for Robin Haighton, VE3FRH, President, AMSAT-NA73

Frank Sperber, DL6DBN/AA9KJ
Redakteur/Webmaster AMSAT-DL Journal
http://www.amsat-dl.org/journal

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