Topic:   Visible calibration update for month of June 2024 

Date/Time Issued:  June 11 2024 2107Z

Product(s) or Data Impacted:  All products from channels 1, 2, and 3a

Date/Time of Initial Impact:  June 11 2024 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 June 2024 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 25, in the middle of the two scheduled updates.

--------------------------------------------------------------------------------------
Metop-B/1
# Ch_1_lo = 0.05801*count -  2.285, count<500.62
# Ch_1_hi =  0.1719*count -  59.28, count>500.62
# Ch_2_lo = 0.06546*count -  2.643, count<503.00
# Ch_2_hi =  0.1928*count -  66.71, count>503.00
# Ch_3_lo = 0.03325*count -  1.397, count<500.85
# Ch_3_hi =  0.2316*count - 100.74, count>500.85
--------------------------------------------------------------------------------------
Metop-C/3
# Ch_1_lo = 0.05620*count -  2.269, count<498.68
# Ch_1_hi =  0.1647*count -  56.36, count>498.68
# Ch_2_lo = 0.06655*count -  2.725, count<500.01
# Ch_2_hi =  0.1950*count -  66.94, count>500.01
# Ch_3_lo = 0.03341*count -  1.356, count<498.72
# Ch_3_hi =  0.2351*count - 101.93, count>498.72
--------------------------------------------------------------------------------------
NOAA-18 AVHRR
# Ch_1_lo = 0.06124*count -  2.415, count<501.54
# Ch_1_hi =  0.1826*count -  62.79, count>501.54
# Ch_2_lo = 0.07562*count -  2.979, count<500.40
# Ch_2_hi =  0.2269*count -  79.06, count>500.40
-------------------------------------------------------------------------------------
NOAA-19 AVHRR
# Ch_1_lo = 0.05664*count -  2.202, count<496.43
# Ch_1_hi =  0.1671*count -  57.43, count>496.43
# Ch_2_lo = 0.06807*count -  2.640, count<500.37
# Ch_2_hi =  0.2027*count -  69.99, count>500.37
-------------------------------------------------------------------------------------- 

The first 1b files produced with the updated CPIDS were:
NSS.HRPT.NN.D24163.S1142.E1146.B9824646.SV
NSS.GHRR.NN.D24163.S0955.E1146.B9824546.SV

NSS.HRPT.NP.D24163.S1212.E1216.B7908383.SV
NSS.GHRR.NP.D24163.S1025.E1216.B7908283.SV

For M3, M1 the first orbits processed will be the one running after orbit:
NSS.HRPT.M1.D24163.S0809.E0820.B6087272.GC
NSS.GHRR.M1.D24163.S1007.E1058.B6087373.MM

NSS.HRPT.M3.D24163.S0905.E0915.B2903030.GC
NSS.GHRR.M3.D24163.S0921.E1102.B2903031.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 and 301-817-3880.    

Web Site(s) for Applicable Information: N/A

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