Topic: Visible calibration update for month of June 2023
Date/Time Issued: June 13 2023 1818Z
Product(s) or Data Impacted: All products from channels 1, 2, and 3a
Date/Time of Initial Impact: Jun 13 2023 12:00 UTC
Date/Time of Expected End: Until Next Month's Coefficient Update TBD
Length of Outage: N/A
Details/Specifics of Change:
On 13 Jun 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 June. These coefficients are intended to be optimal on June 27, in the middle of the two scheduled updates.
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Metop-B/1
# Ch_1_lo = 0.05785*count - 2.279, count<500.62
# Ch_1_hi = 0.1714*count - 59.13, count>500.62
# Ch_2_lo = 0.06491*count - 2.621, count<503.00
# Ch_2_hi = 0.1912*count - 66.15, count>503.00
# Ch_3_lo = 0.03315*count - 1.393, count<500.85
# Ch_3_hi = 0.2309*count - 100.43, count>500.85
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Metop-C/3
# Ch_1_lo = 0.05599*count - 2.260, count<498.68
# Ch_1_hi = 0.1640*count - 56.15, count>498.68
# Ch_2_lo = 0.06490*count - 2.658, count<500.01
# Ch_2_hi = 0.1901*count - 65.28, count>500.01
# Ch_3_lo = 0.03324*count - 1.348, count<498.72
# Ch_3_hi = 0.2338*count - 101.39, 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 - 62.83, count>501.54
# Ch_2_lo = 0.07510*count - 2.959, count<500.40
# Ch_2_hi = 0.2253*count - 78.52, count>500.40
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NOAA-19 AVHRR
# Ch_1_lo = 0.05652*count - 2.197, count<496.43
# Ch_1_hi = 0.1667*count - 57.31, count>496.43
# Ch_2_lo = 0.06825*count - 2.647, count<500.37
# Ch_2_hi = 0.2033*count - 70.19, count>500.37
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The first 1b files produced with the updated CPIDS were:
NSS.HRPT.NN.D23164.S1632.E1647.B9310808.WI
NSS.GHRR.NN.D23164.S1446.E1631.B9310708.WI
NSS.HRPT.NP.D23164.S1233.E1245.B7394343.WI
NSS.GHRR.NP.D23164.S1030.E1225.B7394243.WI
For M3, M1 the first orbits processed will be the one running after orbit:
NSS.HRPT.M1.D23164.S0701.E0714.B5570000.GC
NSS.FRAC.M1.D23164.S0945.E1041.B5570102.SV
NSS.HRPT.M3.D23164.S0937.E0946.B2385959.GC
NSS.FRAC.M3.D23164.S0952.E1133.B2385960.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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