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NOAA-15, 16, and 17; Spacecraft Clock Updates, 10 June 2003 - Issued: 9 June 2003; 1930 UTC

From:
3:34 PM
Subject: NOAA-15, 16, and 17; Spacecraft Clock Updates, 10 June 2003 - Issued: 9 June 2003; 1930 UTC
Resent-From: nesdis.osdpd.ipd.Level-1B.notices@noaa.gov,
nesdis.osdpd.ipd.contractors@noaa.gov

Topic:
Clock Drift Error Correction

Date/Time(UTC) Message Issued:
9 June 2003, 1930 UTC

Satellite(s) Involved:
NOAA-14, 15, 16, 17

Instrument(s) Involved:
All

Product(s) Involved/Affected:
All products/Improved timing

Date/Time(UTC) of Initial Implementation:
10 June 2003, Time 2359 UTC

Details/Specifics of Change:
SOCC has announced that on June 10, the elapsed time clocks for NOAA-14, 15,
16, and 17 will be updated to compensate for clock drift. The corrections
for each satellite are as indicated in the table below (all values are in
milliseconds).

APPROXIMATE SCHEDULED APPROXIMATE
SPACECRAFT CURRENT AVERAGE CLOCK UPDATE OFFSET AFTER
OFFSET DAILY DRIFT VALUE UPDATE
NOAA-14 72 ms -0.72 ms -150 ms -70 ms
NOAA-15 -53 ms -.38 ms +100 ms +45 ms
NOAA-16 62 ms .55 ms -100 ms -35 ms
NOAA-17 66 ms 1.13 ms -100 ms -30 ms

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 ...
Calibration")
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
http://www.oso.noaa.gov/poesstatus/ - SOCC polar satellites status
http://www.oso.noaa.gov/daily-news/index.htm - SOCC morning reports


ppp@nesdis.noaa.gov

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