Topic:
Local Oscillator toggle to correct problem ineffective
Date/Time(UTC) Message Issued:
25 November 2002; 2300 UTC
Satellite(s) Involved:
NOAA-16
Instrument(s) Involved:
AMSU-A1
Product(s) Involved/Affected:
All data users
Date/Time(UTC) of Initial Implementation:
21 November 2002 1550 UTC
Details/Specifics of Change:
Attempts to reset the oscillator by toggling between the redundant (PLLO#2)
and primary (PLLO#1) oscillators were not successful. NOAA will continue to
investigate the problem. A meeting to determine further action is scheduled
for tomorrow. We will continue to operate using the redundant oscillator
(PLLO#2). Users will be informed of any new developments.
Contact Person(s) Name/Email/Phone Number for Questions:
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