Topic:
Discontinue daily clock drift adjustments by SOCC
Date/Time(UTC) Message Issued:
21 November 2002; 2000 UTC
Satellite(s) Involved:
NOAA-17
Instrument(s) Involved:
All
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/Emily.Harrod@noaa.gov/301-457-5247 ext 117
Web site(s) that contain other relevant information (where applicable):
http://www.oso.noaa.gov/daily-news/index.htm - SOCC morning reports
http://www.osdpd.noaa.gov/PSB/PPP/PPP.html - History of level 1B
notices
http://www.ssd.noaa.gov/PS/SATS/messages.html - All user notices