Topic: Visible calibration update for month of August 2022
Date/Time Issued: August 9 2022 2003 UTC
Product(s) or Data Impacted: All products from channels 1, 2, and 3a
Date/Time of Initial Impact: August 9 2022 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 August 2022 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 August. These coefficients are intended to be optimal on August 27, in the middle of the two scheduled updates.
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Metop-B/1
# Ch_1_lo = 0.05766*count - 2.271, count<500.62
# Ch_1_hi = 0.1708*count - 58.93, count>500.62
# Ch_2_lo = 0.06456*count - 2.607, count<503.00
# Ch_2_hi = 0.1902*count - 65.79, count>503.00
# Ch_3_lo = 0.03307*count - 1.389, count<500.85
# Ch_3_hi = 0.2303*count - 100.17, count>500.85
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Metop-C/3
# Ch_1_lo = 0.05571*count - 2.249, count<498.68
# Ch_1_hi = 0.1632*count - 55.87, count>498.68
# Ch_2_lo = 0.06416*count - 2.628, count<500.01
# Ch_2_hi = 0.1880*count - 64.54, count>500.01
# Ch_3_lo = 0.03306*count - 1.341, count<498.72
# Ch_3_hi = 0.2326*count - 100.85, count>498.72
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NOAA-18 AVHRR
# Ch_1_lo = 0.06146*count - 2.423, count<501.54
# Ch_1_hi = 0.1833*count - 63.02, count>501.54
# Ch_2_lo = 0.07528*count - 2.966, count<500.40
# Ch_2_hi = 0.2259*count - 78.70, count>500.40
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NOAA-19 AVHRR
# Ch_1_lo = 0.05619*count - 2.184, count<496.43
# Ch_1_hi = 0.1658*count - 56.97, count>496.43
# Ch_2_lo = 0.06766*count - 2.624, count<500.37
# Ch_2_hi = 0.2015*count - 69.57, count>500.37
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The first 1b files produced with the updated CPIDS were:
NSS.HRPT.NN.D22221.S1506.E1522.B8875858.WI
NSS.GHRR.NN.D22221.S1313.E1506.B8875758.WI
NSS.HRPT.NP.D22221.S1154.E1206.B6959494.WI
NSS.GHRR.NP.D22221.S0952.E1147.B6959394.WI
For M3, M1 the first orbits processed will be the one running after orbit:
NSS.HRPT.M1.D22221.S0815.E0827.B5132525.GC
NSS.GHRR.M1.D22221.S1012.E1104.B5132626.MM
NSS.HRPT.M3.D22221.S0910.E0919.B1948383.GC
NSS.GHRR.M3.D22221.S0925.E1106.B1948384.SV
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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
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