Hi All,

RAX is recovering from a low battery charge condition. We observed an anomaly last week that has severely reduced RAX's power generation capability on her remaining three panels (the first being shorted out). The only two safe operating modes for RAX in this condition are infrequent beacons (every 1-2 minutes) or beacons off to regain energy spent on engineering diagnosis tests. I can't discuss the reason for the fault at the moment, but I can tell you our team is converging on the cause at this time. We can provide more info when we are certain of the cause, and will also speak to the impact on the mission.

In the meantime, I will send occasional updates as to when the beacon will be on for those listening.

Thanks and 73.

Matt KF6RTB

--- On Sun, 12/19/10, P.H. bbjunkie@f2s.com wrote:

From: P.H. bbjunkie@f2s.com Subject: [amsat-bb] Re: no signals from RAX-1 heard To: amsat-bb@amsat.org Date: Sunday, December 19, 2010, 4:50 AM I heard it at approx 04:05 UTC however I was wondering if there was something wrong, the beacons were very infrequent, I think I only heard 3 during the whole pass. Unfortunately I don't have 9600bps hardware at present, so I can't provide any tlm from them.

Pete MI3EPN

On Sun, Dec 19, 2010 at 10:07 AM, Alan Cresswell alancresswell@xtra.co.nz wrote:

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Nothing from RAX over ZL on the 0959 UT pass

Alan

ZL2BX

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From: amsat-bb-bounces@amsat.org

[mailto:amsat-bb-bounces@amsat.org] On

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Behalf Of Mike Rupprecht Sent: Sunday, 19 December 2010 07:36 To: amsat-bb@amsat.org Cc: 'James Cutler' Subject: [amsat-bb] no signals from RAX-1 heard

All,

nothing heard from RAX this morning over Europe . :-(

73, Mike

DK3WN

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