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Administrative: NOAA -16,18,19 & MetOp-A/2, AVHRR, Monthly Calibration Update - Issued: March 13, 2012 1317 UTC

Subject: Administrative: NOAA -16,18,19 & MetOp-A/2, AVHRR, Monthly Calibration Update - Issued: March 13, 2012 1317 UTC

Topic: Visible calibration update for month of March 2012.
Date/Time(UTC) Message Issued: March 13, 2012 1317 UTC

Satellite(s) Involved: All products from channels 1, 2, and 3a

Product(s) Involved/Affected: EDRs, SDR, TDR and TDUP Products from DMSP F-17 & F-18

Date/Time(UTC) of Initial Implementation: March 13, 2012 1200 UTC
Date/Time(UTC) of Expected End: Until Next Month's Coefficient Update
Length of Outage: N/A
Details/Specifics of Change: On 13 March 2012 at approximately 12:00 UTC, the following update of the calibration coefficients was implemented in the level 1B processing for NOAA-16/18/19 and MetOp-A/2 for the month of March. These coefficients are intended to be optimal on 27 March, in the middle of the two scheduled updates.
NOAA-16 AVHRR
Ch_1_lo = 0.05932*count - 2.287, count<498.96
Ch_1_hi = 0.1731*count - 58.84, count>498.96
Ch_2_lo = 0.06580*count - 2.485, count<500.16
Ch_2_hi = 0.1939*count - 66.53, count>500.16

NOAA-18 AVHRR
Ch_1_lo = 0.05564*count - 2.194, count<501.54
Ch_1_hi = 0.1659*count - 57.05, count>501.54
Ch_2_lo = 0.06402*count - 2.522, count<500.40
Ch_2_hi = 0.1921*count - 66.94, count>500.40

NOAA-19 AVHRR
Ch_1_lo = 0.05155*count - 2.004, count<496.43
Ch_1_hi = 0.1521*count - 52.27, count>496.43
Ch_2_lo = 0.05787*count - 2.244, count<500.37
Ch_2_hi = 0.1724*count - 59.51, count>500.37
MetOp-A/2
Ch_1_lo = 0.05499*count - 2.224, count<501.01
Ch_1_hi = 0.1625*count - 56.09, count>501.01
Ch_2_lo = 0.06587*count - 2.618, count<500.42
Ch_2_hi = 0.1956*count - 67.55, count>500.42
Ch_3_lo = 0.03292*count - 1.353, count<501.94
Ch_3_hi = 0.2286*count - 99.59, count>501.94

For NL/NN/NP, the first orbits processed were:
NSS.HRPT.NL.D12073.S0959.S1014.B5915151.CF
NSS.GHRR.NL.D12073.S1031.E1226.B5915253.WI

NSS.HRPT.NN.D12073.S1256.E1309.B3510606.GC
NSS.GHRR.NN.D12073.S1121.E1255.B3510506.GC

NSS.LHRR.NP.D12073.S1041.E1045.B1595050.GC
NSS.HRPT.NP.D12073.S1235.E1250.B1595151.GC
NSS.GHRR.NP.D12073.S1048.E1234.B1595051.GC

For MetOp-A/2, the first orbit processed was the one running after orbit:
NCS.FRAC.M2.D12073.S1003.E1053.B2801212.MM

Contact Person(s) Name/Email/Phone Number for Questions:
ESPC Operations at ESPCOperations@noaa.gov at 301-817-3880

Web Site(s) for applicable information: N/A

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