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Administrative, NOAA-16, 18, 19, & MetOp-2/A, AVHRR, Monthly Visible Calibration Update, 11 January 2011 - Issued: 11 January 2011 1530 UTC

Topic:
Visible calibration update for month of January 2011

Date/Time(UTC) Message Issued:
11 January 2011, 1530 UTC

Satellite(s) Involved:
NOAA-16, 18, 19, & 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:
11 January 2011, Time 1438 UTC

Details/Specifics of Change:
On 11 January 2011 at approximately 14:38 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 January. These coefficients are intended to be optimal on 25 January, in the middle of the two scheduled updates.

NOAA-16 AVHRR

Ch_1_lo = 0.05837*count - 2.250, count<498.96
Ch_1_hi = 0.1704*count - 57.90, count>498.96
Ch_2_lo = 0.06436*count - 2.431, count<500.16
Ch_2_hi = 0.1896*count - 65.08, count>500.16

NOAA-18 AVHRR

Ch_1_lo = 0.05484*count - 2.162, count<501.54
Ch_1_hi = 0.1635*count - 56.23, count>501.54
Ch_2_lo = 0.06295*count - 2.480, count<500.40
Ch_2_hi = 0.1889*count - 65.81, count>500.40

NOAA-19 AVHRR

Ch_1_lo = 0.05147*count - 2.001, count<496.43
Ch_1_hi = 0.1518*count - 52.19, count>496.43
Ch_2_lo = 0.05751*count - 2.230, count<500.37
Ch_2_hi = 0.1713*count - 59.14, count>500.37

Metop-A/2

Ch_1_lo = 0.05435*count - 2.198, count<501.01
Ch_1_hi = 0.1606*count - 55.43, count>501.01
Ch_2_lo = 0.06463*count - 2.569, count<500.42
Ch_2_hi = 0.1920*count - 66.28, count>500.42
Ch_3_lo = 0.03244*count - 1.333, count<501.94
Ch_3_hi = 0.2253*count - 98.15, count>501.94

For NL/NN/NP, the first orbits processed were:

NSS.GHRR.NL.D11011.S1145.E1332.B5312425.WI
NSS.HRPT.NL.D11011.S1650.E1703.B5312727.GC

NSS.GHRR.NN.D11011.S1049.E1236.B2908182.GC
NSS.HRPT.NN.D11011.S1446.E1457.B2908383.CF

NSS.HRPT.NP.D11011.S1505.E1518.B0993030.GC
NSS.GHRR.NP.D11011.S1317.E1504.B0992930.GC
NSS.LHRR.NP.D11011.S1624.E1630.B0993131.WI

For M2, the first orbit processed was the one running after orbit:

NCS.FRAC.M2.D11011.S1035.E1217.B2194647.SV

Contact Person(s) Name/Email/Phone Number for Questions:
Dejiang.Han Dejiang.Han@noaa.gov 301-817-4119 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


ppp@nesdis.noaa.gov

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