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SLR-Mail No.1355

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Date:2005-08-09 17:22:00
Sender:Frank Lemoine, NASA Goddard Space Flight Center <flemoine@bowie.gsfc.nasa.gov>
Subject:[SLR-Mail] No. 1355: MMeteor-3m Status, and Request for Resumption of tracking
Author:Frank Lemoine, NASA Goddard Space Flight Center
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SLR Electronic Mail 2005-08-09 17:22:00 UTC Message No. 1355
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Author: Frank Lemoine, NASA Goddard Space Flight Center
Subject: MMeteor-3m Status, and Request for Resumption of tracking

Dear Colleagues,

As you are aware, the Meteor3M spacecraft experienced a rupture of its
main pressure tank on July 27. A further pressure anomaly occurred
a few days later. According to the Meteor3M engineering team,
as relayed by the SAGE instrument project scientist at NASA Langley,
The main spacecraft attitude control system,
and the spacecraft batteries remain operational, and the power supply
appears to be unaffected.

The result is that the mean semiamjor axis
as shown by NORAD elements has decreased from 7384 km before July 27,
to approximately 7382.5 km after August 7. The venting appears to have
ceased.

The integrity of the SAGE instrument is not compromised, and collection
of should resume within the next ten days.

Accordingly, today we have distributed IRV´s for Meteor3M
via the predictions exploder,
prepared by Julie Horvath of HTSI using the NORAD TLE´s.
We hope that you can use these IRV´s
to reinitiate tracking of the spacecraft.

Please do not hesitate to contact us if you have any questions,
and thank you for your support of this mission.

Sincerely,
Frank Lemoine
Code 697, Space Geodesy Laboratory
NASA Goddard Space Flight Center

From: flemoine@bowie.gsfc.nasa.gov

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