Topic:
Visible calibration update for month of December 2008
Date/Time(UTC) Message Issued:
29 December 2008, 1750 UTC
Satellite(s) Involved:
NOAA-16, 17, 18, & MetOp-2/A
Instrument(s) Involved:
AVHRR
Product(s) Involved/Affected:
All Products from channels 1, 2, and 3a.
Date/Time(UTC) of Initial Implementation:
9 December 2008, Time 1628 UTC
Details/Specifics of Change:
On 9 December, the AVHRR visible calibration coefficient update for the month of December was completed at 1628 UTC for NL, NM, NN, and M2. The first orbits to be processed are:
NSS.HRPT.NL.D08344.S1638.E1652.B4235555.EB
NSS.GHRR.NL.D08344.S1636.E1805.B4235556.GC
NSS.HRPT.NM.D08344.S1603.E1616.B3357878.MI
NSS.GHRR.NM.D08344.S1601.E1733.B3357879.GC
NSS.LHRR.NM.D08344.S1710.E1719.B3357979.GC
NSS.HRPT.NN.D08344.S1634.E1646.B1832222.GC
NSS.GHRR.NN.D08344.S1447.E1633.B1832122.GC
NSS.LHRR.NN.D08344.S1612.E1619.B1832122.GC
For M2, the first orbit processed was the one following:
NCS.FRAC.M2.D08344.S1205.E1346.B1110809.SV
********************* Original Message *************************
The following update of the AVHRR VIS/NIR channel calibration coefficients for MetOp-2/A, NOAA-18, 17, &16 are recommended for December 9. These coefficients are intended to be optimal on December 27, 2008, in the middle of two scheduled updates.
Metop-A/2
Ch_1_lo = 0.05296*count - 2.141, count<501.01 >
Ch_1_hi = 0.1565*count - 54.01, count>501.01
Ch_2_lo = 0.06290*count - 2.500, count<500.42 >
Ch_2_hi = 0.1868*count - 64.51, count>500.42
Ch_3_lo = 0.03169*count - 1.302, count<501.94 >
Ch_3_hi = 0.2201*count - 95.89, count>501.94
------------------------------------------------------------------
NOAA-18 AVHRR
Ch_1_lo = 0.05349*count - 2.109, count<501.54 >
Ch_1_hi = 0.1595*count - 54.84, count>501.54
Ch_2_lo = 0.06143*count - 2.420, count<500.40 >
Ch_2_hi = 0.1843*count - 64.22, count>500.40
-----------------------------------------------------------------
NOAA-17 AVHRR
Ch_1_lo = 0.05617*count - 2.248, count<501.12 >
Ch_1_hi = 0.1649*count - 56.74, count>501.12
Ch_2_lo = 0.06764*count - 2.655, count<500.73 >
Ch_2_hi = 0.2013*count - 69.71, count>500.73
Ch_3_lo = 0.03284*count - 1.384, count<501.37 >
Ch_3_hi = 0.2302*count - 100.50, count>501.37
----------------------------------------------------------------
NOAA-16 AVHRR
Ch_1_lo = 0.05675*count - 2.188, count<498.96 >
Ch_1_hi = 0.1656*count - 56.29, count>498.96
Ch_2_lo = 0.06194*count - 2.340, count<500.16 >
Ch_2_hi = 0.1825*count - 62.64, count>500.16
Contact Person(s) Name/Email/Phone Number for Questions:
Emily Harrod Emily.Harrod@noaa.gov 301-817-3882 operations support
Xiangqian Wu Xiangqian.Wu@noaa.gov 301-763-8136 x 138 instrument scientist
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