Subject: Administrative: NOAA-18, 19, Metop-B/1, Metop-A/2, Metop-C/3 AVHRR, Monthly Visible Calibration Update, 12 October 2021 - Issued: 12 October 1750Z
From: Trusted NESDIS NSOF Sender - NOAA Service Account
Date: 10/12/2021, 1:50 PM
To: espc.notification@noaa.gov
Subject: Administrative: NOAA-18, 19, MetOp-A/2, MetOp-B/1, & MetOp-C/3 AVHRR, Monthly Visible Calibration Update, 12 October 2021 - Issued: 12 October 2021 1750Z
Topic: Visible calibration update for month of October 2021
Date/Time Issued: October 12 2021 1750Z
Product(s) or Data Impacted: All products from channels 1, 2, and 3a
Date/Time of Initial Impact: October 12 2021 12:00Z
Date/Time of Expected End: Until Next Month's Coefficient Update
Length of Outage: N/A
Details/Specifics of Change:
On 12 October 2021 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 October. These coefficients are intended to be optimal on October 26, in the middle of the two scheduled updates.
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Metop-B/1
Ch_1_lo = 0.05735*count - 2.259, count<500.62
Ch_1_hi = 0.1699*count - 58.61, count>500.62
Ch_2_lo = 0.06437*count - 2.599, count<503.00
Ch_2_hi = 0.1896*count - 65.60, count>503.00
Ch_3_lo = 0.03291*count - 1.383, count<500.85
Ch_3_hi = 0.2292*count - 99.71, count>500.85
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Metop-A/2
Ch_1_lo = 0.05757*count - 2.328, count<501.01
Ch_1_hi = 0.1701*count - 58.72, count>501.01
Ch_2_lo = 0.07284*count - 2.895, count<500.42
Ch_2_hi = 0.2163*count - 74.71, count>500.42
Ch_3_lo = 0.03550*count - 1.459, count<501.94
Ch_3_hi = 0.2466*count - 107.40, count>501.94
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Metop-C/3
Ch_1_lo = 0.05524*count - 2.230, count<498.68
Ch_1_hi = 0.1619*count - 55.40, count>498.68
Ch_2_lo = 0.06362*count - 2.605, count<500.01
Ch_2_hi = 0.1864*count - 63.99, count>500.01
Ch_3_lo = 0.03274*count - 1.328, count<498.72
Ch_3_hi = 0.2304*count - 99.89, count>498.72
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NOAA-18 AVHRR
Ch_1_lo = 0.06164*count - 2.430, count<501.54
Ch_1_hi = 0.1838*count - 63.20, count>501.54
Ch_2_lo = 0.07530*count - 2.966, count<500.40
Ch_2_hi = 0.2259*count - 78.72, count>500.40
Ch_2_hi = 0.2259*count - 78.72, count>500.40
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NOAA-19 AVHRR
Ch_1_lo = 0.05578*count - 2.168, count<496.43
Ch_1_hi = 0.1646*count - 56.56, count>496.43
Ch_2_lo = 0.06666*count - 2.585, count<500.37
Ch_2_hi = 0.1986*count - 68.55, count>500.37
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The first 1b files produced with the updated CPIDS were:
NSS.HRPT.NN.D21285.S1453.E1508.B8450808.WI
NSS.GHRR.NN.D21285.S1259.E1452.B8450708.WI
NSS.HRPT.NP.D21285.S1234.E1249.B6534545.WI
NSS.GHRR.NP.D21285.S1042.E1234.B6534445.WI
For M3, M2 & M1 the first orbits processed will be the one running after orbit:
NSS.HRPT.M1.D21285.S0845.E0855.B4704949.GC
NSS.FRAC.M1.D21285.S1042.E1133.B4705050.MM
NSS.HRPT.M2.D21285.S0355.E0400.B7773333.MO
NSS.FRAC.M2.D21285.S0924.E1105.B7773637.SV
NSS.HRPT.M3.D21285.S0938.E0947.B1520707.GC
NSS.FRAC.M3.D21285.S0952.E1134.B1520708.SV
Contact Person(s) Name/Email/Phone Number for Questions:
Dejiang.Han Dejiang.Han@noaa.gov
Xiangqian Wu Xiangqian.Wu@noaa.gov
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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ppp@nesdis.noaa.gov
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