Topic: Visible calibration update for month of January 2023
Date/Time Issued: January 10 2023 1923Z
Product(s) or Data Impacted: All products from channels 1, 2, and 3a
Date/Time of Initial Impact: January 10 2023 12:00Z
Date/Time of Expected End: Until Next Month's Coefficient Update
Length of Outage: N/A
Details/Specifics of Change:
On 10 January 2023 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-B/1, and MetOp-C/3 for the month of January. These coefficients are intended to be optimal on January 28, in the middle of the two scheduled updates.
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Metop-B/1
# Ch_1_lo = 0.05777*count - 2.275, count<500.62
# Ch_1_hi = 0.1712*count - 59.04, count>500.62
# Ch_2_lo = 0.06476*count - 2.615, count<503.00
# Ch_2_hi = 0.1908*count - 66.00, count>503.00
# Ch_3_lo = 0.03311*count - 1.391, count<500.85
# Ch_3_hi = 0.2306*count - 100.31, count>500.85
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Metop-C/3
# Ch_1_lo = 0.05581*count - 2.253, count<498.68
# Ch_1_hi = 0.1635*count - 55.97, count>498.68
# Ch_2_lo = 0.06454*count - 2.643, count<500.01
# Ch_2_hi = 0.1891*count - 64.92, count>500.01
# Ch_3_lo = 0.03315*count - 1.345, count<498.72
# Ch_3_hi = 0.2332*count - 101.12, count>498.72
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NOAA-18 AVHRR
# Ch_1_lo = 0.06136*count - 2.419, count<501.54
# Ch_1_hi = 0.1830*count - 62.92, count>501.54
# Ch_2_lo = 0.07524*count - 2.964, count<500.40
# Ch_2_hi = 0.2258*count - 78.66, count>500.40
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NOAA-19 AVHRR
# Ch_1_lo = 0.05639*count - 2.192, count<496.43
# Ch_1_hi = 0.1664*count - 57.18, count>496.43
# Ch_2_lo = 0.06806*count - 2.640, count<500.37
# Ch_2_hi = 0.2027*count - 69.99, count>500.37
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The first 1b files produced with the updated CPIDS were:
NSS.HRPT.NN.D23010.S1424.E1430.B9093232.MI
NSS.GHRR.NN.D23010.S1410.E1557.B9093233.WI
NSS.HRPT.NP.D23010.S1310.E1325.B7176969.WI
NSS.GHRR.NP.D23010.S1108.E1303.B7176869.WI
For M3, M1 the first orbits processed will be the one running after orbit:
NSS.HRPT.M1.D23010.S0830.E0841.B5351313.GC
NSS.GHRR.M1.D23010.S1027.E1118.B5351414.MM
NSS.HRPT.M3.D23010.S0924.E0933.B2167171.GC
NSS.GHRR.M3.D23010.S0939.E1119.B2167172.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 and 301-817-3880
Web Site(s) for applicable information: N/A
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