Subject: Administrative: NOAA-18, 19, MetOp-B/1, & MetOp-C/3 AVHRR, Monthly Visible Calibration Update April 2022 - Issued: April 12, 2022 1825z
From: Trusted NESDIS NSOF Sender - NOAA Service Account
Date: 4/12/2022, 2:25 PM
To: espc.notification@noaa.gov
Topic: Visible calibration update for month of April 2022
Date/Time Issued: April 12, 2022 1825Z
Product(s) or Data Impacted: All products from channels 1, 2, and 3a
Date/Time of Initial Impact: April 12 2022 12:00Z
Date/Time of Expected End: Until Next Month's Coefficient Update
Length of Outage: N/A
Details/Specifics of Change:
On 12 April 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 April. These coefficients are intended to be optimal on April 26, in the middle of the two scheduled updates.
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Metop-B/1
# Ch_1_lo = 0.05754*count - 2.266, count<500.62
# Ch_1_hi = 0.1705*count - 58.81, count>500.62
# Ch_2_lo = 0.06457*count - 2.607, count<503.00
# Ch_2_hi = 0.1902*count - 65.80, count>503.00
# Ch_3_lo = 0.03301*count - 1.387, count<500.85
# Ch_3_hi = 0.2299*count - 100.01, count>500.85
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Metop-C/3
# Ch_1_lo = 0.05553*count - 2.242, count<498.68
# Ch_1_hi = 0.1627*count - 55.69, count>498.68
# Ch_2_lo = 0.06415*count - 2.627, count<500.01
# Ch_2_hi = 0.1880*count - 64.53, count>500.01
# Ch_3_lo = 0.03294*count - 1.336, count<498.72
# Ch_3_hi = 0.2317*count - 100.48, count>498.72
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NOAA-18 AVHRR
# Ch_1_lo = 0.06156*count - 2.427, count<501.54
# Ch_1_hi = 0.1835*count - 63.12, count>501.54
# Ch_2_lo = 0.07519*count - 2.962, count<500.40
# Ch_2_hi = 0.2256*count - 78.61, count>500.40
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NOAA-19 AVHRR
# Ch_1_lo = 0.05602*count - 2.178, count<496.43
# Ch_1_hi = 0.1653*count - 56.80, count>496.43
# Ch_2_lo = 0.06719*count - 2.606, count<500.37
# Ch_2_hi = 0.2001*count - 69.10, count>500.37
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The first 1b files produced with the updated CPIDS were:
NSS.HRPT.NN.D22102.S1533.E1539.B8707878.MI
NSS.GHRR.NN.D22102.S1341.E1529.B8707778.WI
NSS.HRPT.NP.D22102.S1157.E1211.B6791414.WI
NSS.GHRR.NP.D22102.S0955.E1150.B6791314.WI
For M3, M1 the first orbits processed will be the one running after orbit:
NSS.HRPT.M1.D22102.S0919.E0929.B4963535.GC
NSS.GHRR.M1.D22102.S1020.E1116.B4963536.SV
NSS.HRPT.M3.D22102.S0831.E0842.B1779292.GC
NSS.GHRR.M3.D22102.S0847.E1029.B1779293.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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