Topic:
Visible Calibration coefficient updates for the AVHRR instrument for the month of March 2007
Date/Time(UTC) Message Issued:
14 March 2007/ 14:25 UTC
Satellite(s) Involved:
NOAA-16,17, and 18
Instrument(s) Involved:
AVHRR
Product(s) Involved/Affected:
All Products using channels 1 and 2 on NOAA-16
All Products using channels 1,2, and 3 on NOAA-17
All Products using channels 1 and 2 on NOAA-18
Date/Time(UTC) of Initial Implementation:
13 March 2007, 17:15 UTC
Details/Specifics of Change:
Give
The following update of the calibration coefficients are recommended
for:
NOAA-18 AVHRR
Ch_1_lo = 0.05272*count - 2.079, count<501.00
Ch_1_hi = 0.1572*count - 54.05, count>501.00
Ch_2_lo = 0.06081*count - 2.396, count<500.00
Ch_2_hi = 0.1825*count - 63.57, count>500.00
NOAA-17 AVHRR
Ch_1_lo = 0.05542*count - 2.218, count<501.12
Ch_1_hi = 0.1627*count - 55.98, count>501.12
Ch_2_lo = 0.06668*count - 2.618, count<500.73
Ch_2_hi = 0.1985*count - 68.72, count>500.73
Ch_3_lo = 0.03220*count - 1.357, count<501.37
Ch_3_hi = 0.2257*count - 98.54, count>501.37
NOAA-16 AVHRR
Ch_1_lo = 0.05508*count - 2.124, count<498.96
Ch_1_hi = 0.1608*count - 54.64, count>498.96
Ch_2_lo = 0.05981*count - 2.259, count<500.16
Ch_2_hi = 0.1762*count - 60.48, count>500.16
on March 13. These coefficients are intended to be optimal on March 27,
in the middle of the two scheduled updates.
These values were implemented on 13 March 2007 at 17:15 UTC The first orbits processed are:
N1S.HRPT.NL.D07072.S1708.E1717.B3336363.GC
N1S.HRPT.NN.D07072.S1657.E1702.B0933838.CF
N1S.LHRR.NN.D07072.S1603.E1609.B0933838.WI
N1S.GHRR.NL.D07072.S1521.E1707.B3336263.GC
NSS.GHRR.NM.D07072.S1449.E1635.B2451213.WI
NSS.HRPT.NM.D07072.S1818.E1833.B2451414.MO
NSS.LHRR.NM.D07072.S1928.E1938.B2451515.GC
N1S.GHRR.NN.D07072.S1257.E1452.B0933637.WI
Contact Person(s) Name/Email/Phone Number for Questions:
Xiangqian Wu, Ph. D.
Physical Scientist, Sensor Physics Branch
Satellite Meteorology and Climatology Division
Center for Satellite Applications and Research (STAR)
National Environmental Satellite, Data, and Information Service (NESDIS)
National Oceanic and Atmospheric Administration (NOAA)
E/RA2, Office 7214, 5200 Auth Rd.
Camp Springs, MD 20746-4304
Phone: 301-763-8136 ext. 138
FAX: 301-763-8580
Xiangqian.Wu@noaa.gov
Cecil A. Paris, PMP
Physical Scientist
301-817-3881
cecil.paris@noaa.goc
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
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*
* Emily D. Harrod
* NOAA/NESDIS/OSDPD/IPD
* Product Systems Branch
* Pre-Product Processing Group
* E/SP13, 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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