Thu 4:48 PM
Subject: NOAA-17, Clock Update and Correction, 23 October 2003 - Issued: 30 October 2003; 2200 UTC
Clock Drift Error Corrections
Date/Time(UTC) Message Issued:
30 October 2003, 2200 UTC
All products/Improved timing
Date/Time(UTC) of Initial Implementation:
21 October 2003, Time 2359 UTC - daily ETCUP
23 October 2003, Time 2359 UTC - one time clock adjustment
Details/Specifics of Change:
The original message sent out on October 20 announcing the NOAA-17 daily
ETCUP adjustment contained the wrong date for the implementation. The daily
ETCUP adjustment of approximately -1.6 ms was begun on October 21, 2003.
In addition, the NOAA-17 spacecraft clock update was performed on October
23, at 2359 UTC, on orbit 6016. A -50 ms clock correction was applied to
reduce the clock error.
We apologize for the lateness of this notice and hope that it did not create
a problem for you.
Contact Person(s) Name/Email/Phone Number for Questions:
Emily.Harrod@noaa.gov/301-457-5247 ext. 117
Cecil.Paris@noaa.gov/301-457-5247 ext. 129
Web site(s) that contain other relevant information (where applicable):
http://noaasis.noaa.gov/NOAASIS/ml/gateway.html (under "Satellite ...
http://www.osdpd.noaa.gov/PSB/PPP/PPP.html - History of level 1B
http://www.ssd.noaa.gov/PS/SATS/messages.html - All user notices
http://www.oso.noaa.gov/poesstatus/ - SOCC polar satellites status
http://www.oso.noaa.gov/daily-news/index.htm - SOCC morning reports