Topic: Visible calibration update for month of November 2020

Date/Time Issued: November 10 2020 1727Z

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

Date/Time of Initial Impact: November 10 2020 12:00Z

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

Length of Outage: N/A

Details/Specifics of Change:

On 10 November 2020 at approximately 12:00Z, the following update of the calibration coefficients was implemented in the level 1B processing for NOAA-18, NOAA-19, MetOp-A/2, MetOp-B/1, and MetOp-C/3 for the month of November. These coefficients are intended to be optimal on November 24, in the middle of the two scheduled updates.

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Metop-B/1

Ch_1_lo = 0.05701*count - 2.245, count<500.62

Ch_1_hi = 0.1689*count - 58.26, count>500.62

Ch_2_lo = 0.06418*count - 2.592, count<503.00

Ch_2_hi = 0.1891*count - 65.41, count>503.00

Ch_3_lo = 0.03283*count - 1.379, count<500.85

Ch_3_hi = 0.2287*count - 99.46, count>500.85

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Metop-A/2

Ch_1_lo = 0.05711*count - 2.309, count<501.01

Ch_1_hi = 0.1688*count - 58.25, count>501.01

Ch_2_lo = 0.07180*count - 2.854, count<500.42

Ch_2_hi = 0.2132*count - 73.63, count>500.42

Ch_3_lo = 0.03504*count - 1.440, count<501.94

Ch_3_hi = 0.2434*count - 106.02, count>501.94

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Metop-C/3

Ch_1_lo = 0.05468*count - 2.208, count<498.68

Ch_1_hi = 0.1602*count - 54.84, count>498.68

Ch_2_lo = 0.06310*count - 2.584, count<500.01

Ch_2_hi = 0.1849*count - 63.47, count>500.01

Ch_3_lo = 0.03231*count - 1.311, count<498.72

Ch_3_hi = 0.2273*count - 98.56, count>498.72

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NOAA-18 AVHRR

Ch_1_lo = 0.06324*count - 2.493, count<501.54

Ch_1_hi = 0.1885*count - 64.84, count>501.54

Ch_2_lo = 0.07471*count - 2.943, count<500.40

Ch_2_hi = 0.2242*count - 78.11, count>500.40

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NOAA-19 AVHRR

Ch_1_lo = 0.05535*count - 2.152, count<496.43

Ch_1_hi = 0.1633*count - 56.13, count>496.43

Ch_2_lo = 0.06570*count - 2.548, count<500.37

Ch_2_hi = 0.1957*count - 67.56, count>500.37

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

NSS.HRPT.NN.D20315.S1155.E1209.B7976263.CF

NSS.GHRR.NN.D20315.S1229.E1408.B7976364.SV

NSS.HRPT.NP.D20315.S1306.E1316.B6060202.MI

NSS.GHRR.NP.D20315.S1059.E1245.B6060102.SV

For M3, M2 & M1 the first orbits processed will be the one running after orbit:

NSS.HRPT.M1.D20315.S0937.E0946.B4227676.GC

NSS.FRAC.M1.D20315.S1037.E1133.B4227677.SV

NSS.HRPT.M2.D20315.S0449.E0454.B7296060.MO

NSS.FRAC.M2.D20315.S0837.E1019.B7296263.SV

NSS.HRPT.M3.D20315.S0849.E0859.B1043333.GC

NSS.FRAC.M3.D20315.S0905.E1046.B1043334.SV

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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