E-mail Archive

Status Update on OV-2 Telemetry Issue

FYI

-------- Original Message --------

Bad news about SeaWiFS that may be of interest to the OCB community.  Telemetry problems are affecting the navigation data.  They
are working on the problem.

Steve

-----Original Message-----
From: Fred Patt [mailto:fred@seawifs.gsfc.nasa.gov]
Sent: Thursday, January 03, 2008 7:54 AM
To: ocean-color@seawifs.gsfc.nasa.gov
Subject: Re: Status Update on OV-2 Telemetry Issue

To all SeaWiFS data users:

Please see the message from GeoEye (below) regarding OV-2 telemetry.  At the
first GAC scene of 2008, the spacecraft telemetry were found to be invalid, and
the problem has not been corrected.  This is affecting data processing because
there are no valid GPS or attitude data to use for navigation.  Efforts are
underway at the SeaWiFS Project to reprocess the data, however, navigation will
be substantially degraded because of the lack of attitude knowledge, and there
does not appear to be any possibility of recovering this.

Updated information will be provided as it becomes available.

Fred Patt

McKee Angela wrote:
>
> At year rollover, OV-2 began to experience a telemetry collection
> anomaly.  Imagery looked okay, however the ancillary telemetry was
> invalid.  A GIM hard boot did NOT remedy the anomaly.  Loads are on
> board through DAY 005.  Imaging will continue. 
>
> This investigation will continue and we will keep you posted.

--
* Frederick S. Patt
* Science Applications International Corporation
* Code 614.8, Goddard Space Flight Center
* Greenbelt, MD 20771
* Vox 301/286-5723 * Fax 301/286-0268
* Email frederick.s.patt@nasa.gov

Back to Main E-mail Archive Page