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NOAA-16, HIRS, Filter Wheel Motor Current Surge, 4 March 2004 - Issued: 5 March 2004; 1500 UTC

From:
10:09 AM
Subject: NOAA-16, HIRS, Filter Wheel Motor Current Surge, 4 March 2004 - Issued: 5 March 2004; 1500 UTC
Resent-From: nesdis.osdpd.ipd.Level-1B.notices@noaa.gov,
nesdis.osdpd.ipd.contractors@noaa.gov
To: undisclosed-recipients:;

Topic:
HIRS increased noise due to filter wheel motor current surge

Date/Time(UTC) Message Issued:
5 March 2004, 1500 UTC

Satellite(s) Involved:
NOAA-16

Instrument(s) Involved:
HIRS

Product(s) Involved/Affected:
Channel 5 and 10, noise in data

Date/Time(UTC) of Initial Implementation:
4 March 2004, Time after 1940 UTC

Details/Specifics of Change:

Daily Quality Control monitoring indicates that NOAA-16 HIRS instrument
temperature has increased. Channels 5 and 10 are showing increased noise
that is apparently due to a HIRS filter wheel motor current surge. This
data, although noisy, does not exceed the current gross filtering
specification limits. Initial occurrence of the anomaly was in the pass
from day 64 with start time 1940 UTC; end time 2135 UTC (B1778183). Some
products may see an increase in the number of unusable scanlines. We will
continue to monitor the data.

Contact Person(s) Name/Email/Phone Number for Questions:
Changyong.Cao@noaa.gov/301-763-8136 ext. 196 instrument scientist
Robert.Levin@noaa.gov/301-457-5247 ext. 124 with ops questions

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


ppp@nesdis.noaa.gov

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