Topic: Visible calibration update for month of September 2024
Date/Time Issued: September 10 2024 2055 UTC
Product(s) or Data Impacted: All products from channels 1, 2, and 3a
Date/Time of Initial Impact: September 10 2024 12:00 UTC
Date/Time of Expected End: Until Next Month's Coefficient Update
Length of Outage: N/A
Details/Specifics of Change:
On 10 September 2024 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 September. These coefficients are intended to be optimal on September 24, in the middle of the two scheduled updates.
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Metop-B/1
# Ch_1_lo = 0.05804*count - 2.286, count<500.62
# Ch_1_hi = 0.1719*count - 59.31, count>500.62
# Ch_2_lo = 0.06567*count - 2.652, count<503.00
# Ch_2_hi = 0.1934*count - 66.92, count>503.00
# Ch_3_lo = 0.03343*count - 1.405, count<500.85
# Ch_3_hi = 0.2329*count - 101.28, count>500.85
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Metop-C/3
# Ch_1_lo = 0.05627*count - 2.272, count<498.68
# Ch_1_hi = 0.1649*count - 56.43, count>498.68
# Ch_2_lo = 0.06693*count - 2.741, count<500.01
# Ch_2_hi = 0.1961*count - 67.32, count>500.01
# Ch_3_lo = 0.03351*count - 1.359, count<498.72
# Ch_3_hi = 0.2357*count - 102.22, count>498.72
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NOAA-18 AVHRR
# Ch_1_lo = 0.06127*count - 2.416, count<501.54
# Ch_1_hi = 0.1827*count - 62.82, count>501.54
# Ch_2_lo = 0.07572*count - 2.983, count<500.40
# Ch_2_hi = 0.2272*count - 79.16, count>500.40
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NOAA-19 AVHRR
# Ch_1_lo = 0.05664*count - 2.202, count<496.43
# Ch_1_hi = 0.1671*count - 57.43, count>496.43
# Ch_2_lo = 0.06827*count - 2.648, count<500.37
# Ch_2_hi = 0.2034*count - 70.21, count>500.37
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The first 1b files produced with the updated CPIDS were:
NSS.HRPT.NN.D24254.S1114.E1121.B9953131.SV
NSS.GHRR.NN.D24254.S0918.E1110.B9953031.SV
NSS.HRPT.NP.D24254.S1154.E1158.B8036868.SV
NSS.GHRR.NP.D24254.S1007.E1158.B8036768.SV
For M3, M1 the first orbits processed will be the one running after orbit:
NSS.HRPT.M1.D24254.S0829.E0840.B6216565.GC
NSS.GHRR.M1.D24254.S1026.E1117.B6216666.MM
NSS.HRPT.M3.D24254.S0924.E0933.B3032323.GC
NSS.GHRR.M3.D24254.S0939.E1120.B3032324.SV
Contact Person(s) Name/Email/Phone Number for Questions:
Web site(s) that contain other relevant information (where applicable):
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Dejiang.Han Dejiang.Han@noaa.gov
Xiangqian Wu Xiangqian.Wu@noaa.gov
http://www.osdpd.noaa.gov/PSB/PPP/PPP.html - History of level 1B notices
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