From:
Wed 3:22 PM
Subject: NOAA-16 and NOAA-17, Gyro-3 on NOAA-16 and NOAA-17 to be turned off, Implementation Date 10 June 2004- Issued: Date 09 June 2004; time issued 19:10 UTC
Resent-From: nesdis.osdpd.ipd.Level-1B.notices@noaa.gov,
NESDIS.OSDPD.IPD.all.hands@noaa.gov
Topic:
To reduce noise generated by an anomalous Gyro-3 on N16 and N17 that
could affect attitude precision, Gyro-3 on N16 and N17 will be turned off
permanently, on 10 June 2004.
Date/Time(UTC) Message Issued:
09 June 2004/ 19:10 UTC
Satellite(s) Involved:
NOAA-16 and NOAA-17
Instrument(s) Involved:
All Instruments
Product(s) Involved/Affected:
All Products
Date/Time(UTC) of Initial Implementation:
10 June 2004 between 13:10:30 and 13:22:30 UTC for NOAA-16
10 June 2004 between 15:36:40 and 15:48:30 UTC for NOAA-17
Details/Specifics of Change:
To reduce noise generated by an anomalous Gyro-3 on N16 and N17 that could
affect attitude precision, Gyro-3 on N16 and N17 will be turned off
permanently, on 10 June at the respective times indicated above. This
procedure will require a high speed dwell on gyro-3 motor current for 30
seconds for each satellite. During this high speed dwell (30 seconds) there
will be a loss of data. The 30 second data loss can be anticipated between
the times given above for each satellite...
Contact Person(s) Name/Email/Phone Number for Questions:
Cecil Paris
301-457-5247 ext 129
cecil.paris@noaa.gov
Emily Harrod
301-457-5247 ext 117
emily.harrod@noaa.gov
Web site(s) that contain other relevant information (where applicable):
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