NOAA-17 - Eliminate Daily Clock Drift Adjustment, 26 November 2002 - Issued: 21 November 2002; 2000 UTC

Discontinue daily clock drift adjustments by SOCC

Date/Time(UTC) Message Issued:
21 November 2002; 2000 UTC

Satellite(s) Involved:

Instrument(s) Involved:

Product(s) Involved/Affected:
All data users

Date/Time(UTC) of Initial Implementation:
26 November 2002 2359 UTC

Details/Specifics of Change:
The Satellite Operations Control Center (SOCC) announced a change to
eliminate the daily clock drift correction for NOAA-17. The spacecraft
clock offset is drifting in a positive direction (as much as 0.75 or more ms
per day). The current bias is apparently exacerbating this drift. They
would like to ensure an offset of less than 75 ms. SOCC and IPD will
monitor the clock error and notify users should an update needed.

Contact Person(s) Name/Email/Phone Number for Questions:
Emily D. Harrod/ ext 117

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