Metop-2/A,All instruments, HRPT Available and Along Track Errors, 17 May 2007- Issued: 18 May 2007; 2230 UTC

Metop-2/A HRPT data available; Along track errors in geolocations

Date/Time(UTC) Message Issued:
18 May 2007, 2230 UTC

Satellite(s) Involved:

Instrument(s) Involved:
All instruments

Product(s) Involved/Affected:
All Products

Date/Time(UTC) of Initial Implementation:
17 May 2007

Details/Specifics of Change:

Metop-2/A HRPT data from Wallops Island (WI) and Gilmore Creek (GI) are now available for users. Please notify Cathy Nichols via email if you would like to access to this data. The data is available in the CLASS archive.

Anomaly Report: We are investigating an along track error that we have seen in the FRAC and HRPT geolocation data. This error is likely also to be in the data for other instruments. Our observations indicate that the greatest error is between 30 deg. and 60 deg. latitude with a magnitude of about 4 to 5 kilometers. There is minimal across track error. Note that only the northern hemisphere ascending and southern hemisphere descending portions of the orbits exhibit the along track error. We have nearly completed our investigation into this problem and hope to have a fix for it in the near future. This problem will not prevent NOAA from declaring the Metop-2/.A data operational on May 21, 2007.

Contact Person(s) Name/Email/Phone Number for Questions:
Emily Harrod 301-817-3882 - anomaly information
Cathy Nichols 301-817-3891- access to HRPT data

Web site(s) that contain other relevant information (where applicable): - History of level 1B notices - All user notices - SOCC polar satellite status - SOCC geostationary satellite status - SOCC morning reports

* Emily D. Harrod
* Computer Operations Branch
* Pre-Product Processing Group
* E/SP11, NSOF, room 1460
* 4231 Suitland Road
* Suitland, Maryland 20746-4304
* voice 301-817-3882
* fax 301-817-3902
* email