*Topic*:
AVHRR Visible Calibration Update for December 2005
*Date/Time(UTC) Message Issued:*
13 December 2005, 2015 UTC
*Satellite(s) Involved:*
NOAA-16, 17, and 18
*Instrument(s) Involved:*
AVHRR
*Product(s) Involved/Affected:*
NOAA-16 channels 1 and 2
NOAA-17 channels 1, 2, and 3
NOAA-18 channels 1 and 2
*Date/Time(UTC) of Initial Implementation:*
13 December 2005, Time 1800 UTC
*Details/Specifics of Change:*
On December 13, the NOAA-16, 17 and 18 AVHRR Viscal updates for December 2005, were put into operations at approximately 1800 UTC. The first orbits to be processed after the change are listed below.
NSS.GHRR.NL.D05347.S1627.E1759.B2694041.WI
NSS.HRPT.NL.D05347.S1800.E1812.B2694141.WI
NSS.GHRR.NM.D05347.S1731.E1911.B1803940.GC
NSS.LHRR.NM.D05347.S1848.E1857.B1804040.GC
NSS.HRPT.NM.D05347.S1913.E1923.B1804040.GC
NSS.GHRR.NN.D05347.S1642.E1826.B0292223.WI
NSS.LHRR.NN.D05347.S1721.E1728.B0292222.WI
NSS.HRPT.NN.D05347.S1827.E1841.B0292323.WI
The following updates of the calibration coefficients were included:
NOAA-16 AVHRR
Ch_1_lo = 0.05413*count - 2.087, count<498.96
Ch_1_hi = 0.1580*count - 53.70, count>498.96
Ch_2_lo = 0.05828*count - 2.201, count<500.16
Ch_2_hi = 0.1717*count - 58.93, count>500.16
NOAA-17 AVHRR
Ch_1_lo = 0.05479*count - 2.193, count<501.12
Ch_1_hi = 0.1609*count - 55.34, count>501.12
Ch_2_lo = 0.06617*count - 2.598, count<500.73
Ch_2_hi = 0.1970*count - 68.20, count>500.73
Ch_3_lo = 0.03179*count - 1.340, count<501.37
Ch_3_hi = 0.2229*count - 97.30, count>501.37
NOAA-18 AVHRR
Ch_1_lo = 0.05113*count - 2.017, count<500.54
Ch_1_hi = 0.1525*count - 52.43, count>500.54
Ch_2_lo = 0.05764*count - 2.271, count<500.40
Ch_2_hi = 0.1729*count - 60.26, count>500.40
These coefficients are intended to be optimal on December 27, in the middle of the two scheduled updates.
*Contact Person(s) Name/Email/Phone Number for Questions:*
Xiangqian.Wu@noaa.gov 301-763-8136 ext. 138 instrument scientist
Emily.Harrod@noaa.gov 301-457-5247 ext. 117 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
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http://www.ssd.noaa.gov/PS/SATS/messages.html - All user notices
http://www.oso.noaa.gov/poes/index.htm - SOCC polar satellite status
http://www.oso.noaa.gov/goes/index.htm - SOCC geostationary satellite status
http://www.oso.noaa.gov/daily-news/index.asp
*
* Emily D. Harrod
* NOAA/NESDIS/OSDPD/IPD
* Computer Operations Branch
* Pre-Product Processing Group
* E/SP11, Federal Building #4, room 0318
* 5200 Auth Road
* Suitland, Maryland 20746-4304
* USA
* voice 301-457-5247 ext 117
* fax 301-457-5199
* email Emily.Harrod@noaa.gov
*
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ppp@nesdis.noaa.gov
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