Topic: Visible calibration update for month of March 2019

Date/Time Issued: March 14, , 2019 2043Z

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

Date/Time of Initial Impact: March 12, , 2019 1234Z

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

Length of Outage: N/A

Details/Specifics of Change: On March 12, 2019 at approximately 12:34 UTC, the following update of the calibration coefficients was implemented in the level 1B processing for NOAA-18, NOAA-19, MetOp-A/2 and MetOp-B/1 for the month of March. These coefficients are intended to be optimal on March 26, in the middle of the two scheduled updates.
Metop-B/1
CH_1_lo = 0.05633*count - 2.219, count<500.62
CH_1_hi = 0.1669*count - 57.57, count>500.62
CH_2_lo = 0.06321*count - 2.552, count<503.00
CH_2_hi = 0.1862*count - 64.42, count>503.00
CH_3_lo = 0.03269*count - 1.373, count<500.85
CH_3_hi = 0.2277*count - 99.02, count>500.85
--------------------------------------------------------------------------------------
Metop-A/2
CH_1_lo = 0.05643*count - 2.282, count<501.01
CH_1_hi = 0.1667*count - 57.55, count>501.01
CH_2_lo = 0.07019*count - 2.790, count<500.42
CH_2_hi = 0.2085*count - 71.99, count>500.42
CH_3_lo = 0.03452*count - 1.418, count<501.94
CH_3_hi = 0.2397*count - 104.42, count>501.94
--------------------------------------------------------------------------------------
NOAA-18 AVHRR
CH_1_lo = 0.06181*count - 2.437, count<501.54
CH_1_hi = 0.1843*count - 63.38, count>501.54
CH_2_lo = 0.07301*count - 2.876, count<500.40
CH_2_hi = 0.2191*count - 76.33, count>500.40
-------------------------------------------------------------------------------------
NOAA-19 AVHRR
CH_1_lo = 0.05460*count - 2.122, count<496.43
CH_1_hi = 0.1611*count - 55.36, count>496.43
CH_2_lo = 0.06403*count - 2.483, count<500.37
CH_2_hi = 0.1907*count - 65.85, count>500.37
--------------------------------------------------------------------------------------
The first 1b files produced with the updated CPIDS were:
NSS.GHRR.NN.D19071.S1112.E1306.B7116566.WI
NSS.HRPT.NN.D19071.S1306.E1315.B7116666.WI
NSS.HRPT.NP.D19071.S1228.E1236.B5200505.GC
NSS.GHRR.NP.D19071.S1044.E1227.B5200405.GC
NSS.LHRR.NP.D19071.S1201.E1212.B5200505.GC
For M2 & M1 the first orbits processed will be the one running after orbit:
NSS.HRPT.M1.D19071.S0937.E0945.B3362424.GC
NSS.FRAC.M1.D19071.S1037.E1132.B3362425.SV
NSS.FRAC.M2.D19071.S1021.E1201.B6431112.SV
NSS.HRPT.M2.D19071.S0452.E0457.B6429090.MO
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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