Topic:   Visible calibration update for month of August 2022

Date/Time Issued:  August 11 2022 0323Z

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

Date/Time of Initial Impact:  August 9 2022 12:00 UTC

Date/Time of Expected End:  Until Next Month's Coefficient Update

Length of Outage:   N/A

Details/Specifics of Change:

On 9 August 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 August. These coefficients are intended to be optimal on August 27, in the middle of the two scheduled updates.

--------------------------------------------------------------------------------------
Metop-B/1
# Ch_1_lo = 0.05766*count -  2.271, count<500.62
# Ch_1_hi =  0.1708*count -  58.93, count>500.62
# Ch_2_lo = 0.06456*count -  2.607, count<503.00
# Ch_2_hi =  0.1902*count -  65.79, count>503.00
# Ch_3_lo = 0.03307*count -  1.389, count<500.85
# Ch_3_hi =  0.2303*count - 100.17, count>500.85
 --------------------------------------------------------------------------------------
Metop-C/3
# Ch_1_lo = 0.05571*count -  2.249, count<498.68
# Ch_1_hi =  0.1632*count -  55.87, count>498.68
# Ch_2_lo = 0.06416*count -  2.628, count<500.01
# Ch_2_hi =  0.1880*count -  64.54, count>500.01
# Ch_3_lo = 0.03306*count -  1.341, count<498.72
# Ch_3_hi =  0.2326*count - 100.85, count>498.72
--------------------------------------------------------------------------------------
NOAA-18 AVHRR
# Ch_1_lo = 0.06146*count -  2.423, count<501.54
# Ch_1_hi =  0.1833*count -  63.02, count>501.54
# Ch_2_lo = 0.07528*count -  2.966, count<500.40
# Ch_2_hi =  0.2259*count -  78.70, count>500.40
-------------------------------------------------------------------------------------
NOAA-19 AVHRR
# Ch_1_lo = 0.05619*count -  2.184, count<496.43
# Ch_1_hi =  0.1658*count -  56.97, count>496.43
# Ch_2_lo = 0.06766*count -  2.624, count<500.37
# Ch_2_hi =  0.2015*count -  69.57, count>500.37
--------------------------------------------------------------------------------------



The first 1b files produced with the updated CPIDS were:
NSS.HRPT.NN.D22221.S1506.E1522.B8875858.WI
NSS.GHRR.NN.D22221.S1313.E1506.B8875758.WI

NSS.HRPT.NP.D22221.S1154.E1206.B6959494.WI
NSS.GHRR.NP.D22221.S0952.E1147.B6959394.WI

For M3, M1 the first orbits processed will be the one running after orbit:
NSS.HRPT.M1.D22221.S0815.E0827.B5132525.GC
NSS.GHRR.M1.D22221.S1012.E1104.B5132626.MM

NSS.HRPT.M3.D22221.S0910.E0919.B1948383.GC
NSS.GHRR.M3.D22221.S0925.E1106.B1948384.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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