Topic:
March Update of AVHRR Visible Calibration Coefficients
Date/Time(UTC) Message Issued:
10 March 2006/1915 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 3a
NOAA-18 channels 1 and 2
Date/Time(UTC) of Initial Implementation:
10 March 2006, 1820 UTC (only in test system)
Details/Specifics of Change:
The following update of the calibration coefficients are recommended for the March 14 visible calibration update:
NOAA-16 AVHRR
Ch_1_lo = 0.05433*count - 2.095, count<498.96
Ch_1_hi = 0.1586*count - 53.89, count>498.96
Ch_2_lo = 0.05890*count - 2.225, count<500.16
Ch_2_hi = 0.1735*count - 59.56, count>500.16
NOAA-17 AVHRR
Ch_1_lo = 0.05513*count - 2.206, count<501.12
Ch_1_hi = 0.1619*count - 55.69, count>501.12
Ch_2_lo = 0.06680*count - 2.623, count<500.73
Ch_2_hi = 0.1988*count - 68.84, count>500.73
Ch_3_lo = 0.03192*count - 1.346, count<501.37
Ch_3_hi = 0.2238*count - 97.70, count>501.37
NOAA-18 AVHRR
Ch_1_lo = 0.05223*count - 2.060, count<500.54
Ch_1_hi = 0.1557*count - 53.56, count>500.54
Ch_2_lo = 0.06083*count - 2.396, count<500.40
Ch_2_hi = 0.1825*count - 63.59, count>500.40
These coefficients are intended to be optimal on March 28, in the middle of the two scheduled updates.
NSS.GHRR.NL.D06069.S1624.E1810.B2816869.GC
NSS.HRPT.NL.D06069.S1935.E1950.B2817070.WI
NSS.GHRR.NM.D06069.S1735.E1930.B1927778.GC
NSS.HRPT.NM.D06069.S1923.E1937.B1927878.MO
NSS.HRPT.NM.D06069.S2057.E2110.B1927979.GC
NSS.HRPT.NN.D06069.S1846.E1900.B0415050.WI
NSS.GHRR.NN.D06069.S1659.E1844.B0414950.WI
Contact Person(s) Name/Email/Phone Number for Questions:
Xiangqian Wu Xiangqian Wu@noaa.gov 301-763-8136 ext. 138 - Instrument scientist
Cecil Paris Cecil.Paris@noaa..gov 301-457-5247 ext. 129 - operations support
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/poes/index.htm - SOCC polar satellite status
http://www.oso.noaa.gov/goes/index.htm - SOCC geostationary satellite statuss
http://www.oso.noaa.gov/daily-news/index.asp - SOCC morning reports
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*
* 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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