Topic: Visible calibration update for month of October 2018

Date/Time Issued: October 09, 2018 1507Z

Product(s) or Data Impacted: All products from channels 1, 2, and 3a

Date/Time of Initial Impact: October 09, 2018 12:23Z

Date/Time of Expected End: Until Next Month's Coefficient Update

Length of Outage: N/A

Details/Specifics of Change: On October 09, 2018 at approximately 12:23Z, the following update of the calibration coefficients was implemented in the level 1B processing for NOAA-18, NOAA-19, MetOp-A/2 and MetOp-B/1 for the month of October. These coefficients are intended to be optimal on October 27, in the middle of the two scheduled updates.

Metop-B/1

Ch_1_lo = 0.05629*count - 2.217, count<500.62

Ch_1_hi = 0.1668*count - 57.53, count>500.62

Ch_2_lo = 0.06303*count - 2.545, count<503.00

Ch_2_hi = 0.1857*count - 64.23, count>503.00

Ch_3_lo = 0.03240*count - 1.362, count<500.85

Ch_3_hi = 0.2257*count - 98.17, count>500.85

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Metop-A/2

Ch_1_lo = 0.05640*count - 2.280, count<501.01

Ch_1_hi = 0.1667*count - 57.52, count>501.01

Ch_2_lo = 0.07008*count - 2.786, count<500.42

Ch_2_hi = 0.2081*count - 71.88, count>500.42

Ch_3_lo = 0.03441*count - 1.414, count<501.94

Ch_3_hi = 0.2390*count - 104.11, count>501.94

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NOAA-18 AVHRR

Ch_1_lo = 0.06143*count - 2.422, count<501.54

Ch_1_hi = 0.1831*count - 62.98, count>501.54

Ch_2_lo = 0.07246*count - 2.855, count<500.40

Ch_2_hi = 0.2174*count - 75.75, count>500.40

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NOAA-19 AVHRR

Ch_1_lo = 0.05441*count - 2.115, count<496.43

Ch_1_hi = 0.1605*count - 55.17, count>496.43

Ch_2_lo = 0.06363*count - 2.468, count<500.37

Ch_2_hi = 0.1895*count - 65.44, count>500.37

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The first 1b files produced with the updated CPIDS were:

NSS.HRPT.NN.D18282.S1257.E1310.B6899292.WI

NSS.GHRR.NN.D18282.S1101.E1255.B6899192.WI

NSS.HRPT.NP.D18282.S1212.E1225.B4983131.MO

NSS.GHRR.NP.D18282.S1159.E1345.B4983132.GC

NSS.LHRR.NP.D18282.S1139.E1150.B4983131.GC

For M2 & M1 the first orbits processed will be the one running after orbit:

NSS.HRPT.M1.D18282.S0920.E0930.B3143636.GC

NSS.FRAC.M1.D18282.S1117.E1207.B3143737.MM

NSS.FRAC.M2.D18282.S1014.E1155.B6212324.SV

NSS.HRPT.M2.D18282.S0445.E0450.B6210202.MO

Contact Person(s) Name/Email/Phone Number for Questions:

Dejiang.Han Dejiang.Han@noaa.gov <mailto:Dejiang.Han@noaa.gov> 301-817-4119 operations support

Xiangqian Wu Xiangqian.Wu@noaa.gov <mailto:Xiangqian.Wu@noaa.gov> 301-683-3601 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

Contact Information for Further Information: ESPC Operations at ESPCOperations@noaa.gov at 301-817-3880

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