Topic: Visible calibration update for month of March 2021
Date/Time Issued: March 9 2021 1700 UTC
Product(s) or Data Impacted: All products from channels 1, 2, and 3a
Date/Time of Initial Impact: March 9 2021 12:00 UTC
Date/Time of Expected End: Until Next Month's Coefficient Update
Length of Outage: N/A
Details/Specifics of Change: On 9 March 2021 at approximately 12:00 UTC, 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 March. These coefficients are intended to be optimal on March 27, in the middle of the two scheduled updates.
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Metop-B/1
Ch_1_lo = 0.05719*count - 2.253, count<500.62
Ch_1_hi = 0.1695*count - 58.45, count>500.62
Ch_2_lo = 0.06425*count - 2.594, count<503.00
Ch_2_hi = 0.1893*count - 65.48, count>503.00
Ch_3_lo = 0.03288*count - 1.382, count<500.85
Ch_3_hi = 0.2290*count - 99.61, count>500.85
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Metop-A/2
Ch_1_lo = 0.05725*count - 2.315, count<501.01
Ch_1_hi = 0.1692*count - 58.38, count>501.01
Ch_2_lo = 0.07218*count - 2.869, count<500.42
Ch_2_hi = 0.2144*count - 74.02, count>500.42
Ch_3_lo = 0.03516*count - 1.445, count<501.94
Ch_3_hi = 0.2442*count - 106.37, count>501.94
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Metop-C/3
Ch_1_lo = 0.05507*count - 2.223, count<498.68
Ch_1_hi = 0.1614*count - 55.23, count>498.68
Ch_2_lo = 0.06390*count - 2.617, count<500.01
Ch_2_hi = 0.1872*count - 64.28, count>500.01
Ch_3_lo = 0.03271*count - 1.327, count<498.72
Ch_3_hi = 0.2302*count - 99.80, count>498.72
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NOAA-18 AVHRR
Ch_1_lo = 0.06172*count - 2.433, count<501.54
Ch_1_hi = 0.1840*count - 63.28, count>501.54
Ch_2_lo = 0.07503*count - 2.956, count<500.40
Ch_2_hi = 0.2251*count - 78.44, count>500.40
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NOAA-19 AVHRR
Ch_1_lo = 0.05551*count - 2.158, count<496.43
Ch_1_hi = 0.1638*count - 56.29, count>496.43
Ch_2_lo = 0.06605*count - 2.562, count<500.37
Ch_2_hi = 0.1967*count - 67.92, count>500.37
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The first 1b files produced with the updated CPIDS were:
NSS.HRPT.NN.D21068.S1152.E1206.B8144243.CF
NSS.GHRR.NN.D21068.S1226.E1420.B8144344.WI
NSS.HRPT.NP.D21068.S1318.E1328.B6228282.MI
NSS.GHRR.NP.D21068.S1119.E1257.B6228182.SV
For M3, M2 & M1 the first orbits processed will be the one running after orbit:
NSS.HRPT.M1.D21068.S0833.E0844.B4396666.GC
NSS.FRAC.M1.D21068.S1031.E1121.B4396767.MM
NSS.HRPT.M2.D21068.S0347.E0351.B7465050.MO
NSS.FRAC.M2.D21068.S0916.E1057.B7465354.SV
NSS.HRPT.M3.D21068.S0928.E0937.B1212424.GC
NSS.FRAC.M3.D21068.S0943.E1125.B1212425.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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