Subject: Administrative: NOAA-18, 19, MetOp-B/1, & MetOp-C/3 AVHRR, Monthly Visible Calibration Update, Scheduled for February 14, 2023 - Issued: February 14, 2023 1911Z
Topic: Visible calibration update for month of February 2023
Date/Time Issued: February 14, 2023 1911Z
Product(s) or Data Impacted: All products from channels 1, 2, and 3a
Date/Time of Initial Impact: February 14, 2023 1200Z
Date/Time of Expected End: Until Next Month's Coefficient Update
Length of Outage: N/A
Details/Specifics of Change:
On February 14, 2023 at approximately 1200Z, 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 February. These coefficients are intended to be optimal on February 28, in the middle of the two scheduled updates.
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Metop-B/1
# Ch_1_lo = 0.05781*count - 2.277, count<500.62
# Ch_1_hi = 0.1713*count - 59.08, count>500.62
# Ch_2_lo = 0.06482*count - 2.617, count<503.00
# Ch_2_hi = 0.1909*count - 66.06, count>503.00
# Ch_3_lo = 0.03313*count - 1.392, count<500.85
# Ch_3_hi = 0.2307*count - 100.36, count>500.85
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Metop-C/3
# Ch_1_lo = 0.05587*count - 2.256, count<498.68
# Ch_1_hi = 0.1637*count - 56.03, count>498.68
# Ch_2_lo = 0.06475*count - 2.652, count<500.01
# Ch_2_hi = 0.1897*count - 65.13, count>500.01
# Ch_3_lo = 0.03313*count - 1.344, count<498.72
# Ch_3_hi = 0.2331*count - 101.07, count>498.72
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NOAA-18 AVHRR
# Ch_1_lo = 0.06134*count - 2.418, count<501.54
# Ch_1_hi = 0.1829*count - 62.89, count>501.54
# Ch_2_lo = 0.07527*count - 2.966, count<500.40
# Ch_2_hi = 0.2258*count - 78.69, count>500.40
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NOAA-19 AVHRR
# Ch_1_lo = 0.05643*count - 2.194, count<496.43
# Ch_1_hi = 0.1665*count - 57.22, count>496.43
# Ch_2_lo = 0.06815*count - 2.643, count<500.37
# Ch_2_hi = 0.2030*count - 70.09, count>500.37
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The first 1b files produced with the updated CPIDS were:
NSS.HRPT.NN.D23045.S1356.E1405.B9142626.WI
NSS.GHRR.NN.D23045.S1152.E1347.B9142526.WI
NSS.HRPT.NP.D23045.S1254.E1308.B7226363.WI
NSS.GHRR.NP.D23045.S1052.E1247.B7226263.WI
For M3, M1 the first orbits processed will be the one running after orbit:
NSS.HRPT.M1.D23045.S0948.E0956.B5401111.GC
NSS.GHRR.M1.D23045.S1003.E1053.B5401111.MM
NSS.HRPT.M3.D23045.S0859.E0909.B2216868.GC
NSS.GHRR.M3.D23045.S0914.E1056.B2216869.SV
Contact Person(s) Name/Email/Phone Number for Questions:
Web site(s) that contain other relevant information (where applicable):
http://www.osdpd.noaa.gov/PSB/PPP/PPP.html - History of level 1B notices
Contact Information for Further Information: ESPC Operations at ESPCOperations@noaa.gov at 301-817-3880
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Dejiang.Han Dejiang.Han@noaa.gov
Xiangqian Wu Xiangqian.Wu@noaa.gov
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http://www.oso.noaa.gov/poes/index.htm - SOCC polar satellite status
ppp@nesdis.noaa.gov
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