Topic: Visible calibration update for month of July 2023
Date/Time Issued: July 12, 2023 0152Z
Product(s) or Data Impacted: All products from channels 1, 2, and 3a
Date/Time of Initial Impact: July 11 2023 12:00 UTC
Date/Time of Expected End: Until Next Month's Coefficient Update
Length of Outage: N/A
Details/Specifics of Change:
On 11 July 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 July. These coefficients are intended to be optimal on July 25, in the middle of the two scheduled updates.
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Metop-B/1
# Ch_1_lo = 0.05787*count - 2.279, count<500.62
# Ch_1_hi = 0.1714*count - 59.14, count>500.62
# Ch_2_lo = 0.06493*count - 2.622, count<503.00
# Ch_2_hi = 0.1913*count - 66.17, count>503.00
# Ch_3_lo = 0.03316*count - 1.393, count<500.85
# Ch_3_hi = 0.2309*count - 100.45, count>500.85
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Metop-C/3
# Ch_1_lo = 0.05593*count - 2.258, count<498.68
# Ch_1_hi = 0.1639*count - 56.08, count>498.68
# Ch_2_lo = 0.06516*count - 2.668, count<500.01
# Ch_2_hi = 0.1909*count - 65.54, count>500.01
# Ch_3_lo = 0.03326*count - 1.350, count<498.72
# Ch_3_hi = 0.2340*count - 101.48, count>498.72
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NOAA-18 AVHRR
# Ch_1_lo = 0.06126*count - 2.415, count<501.54
# Ch_1_hi = 0.1826*count - 62.81, 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 = 0.05656*count - 2.198, count<496.43
# Ch_1_hi = 0.1669*count - 57.35, count>496.43
# Ch_2_lo = 0.06834*count - 2.650, count<500.37
# Ch_2_hi = 0.2036*count - 70.27, count>500.37
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The first 1b files produced with the updated CPIDS were:
NSS.HRPT.NN.D23192.S1551.E1607.B9350303.WI
NSS.GHRR.NN.D23192.S1403.E1551.B9350203.WI
NSS.HRPT.NP.D23192.S1336.E1351.B7433939.WI
NSS.GHRR.NP.D23192.S1134.E1329.B7433839.WI
For M3, M1 the first orbits processed will be the one running after orbit:
NSS.HRPT.M1.D23192.S0904.E0914.B5609999.GC
NSS.GHRR.M1.D23192.S1005.E1101.B5609900.SV
NSS.HRPT.M3.D23192.S0633.E0647.B2425555.GC
NSS.GHRR.M3.D23192.S0832.E1014.B2425657.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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