Topic: Visible calibration update for month of December 2021

 

Date/Time Issued: December14, 2021 1647Z

 

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

 

Date/Time of Initial Impact: December 14, 2021 1200Z

 

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

 

Length of Outage: N/A

 

Details/Specifics of Change: On 14 December 2021 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 December. These coefficients are intended to be optimal on December 28, in the middle of the two scheduled updates.

 

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Metop-B/1

Ch_1_lo = 0.05740*count -  2.261, count<500.62

Ch_1_hi =  0.1700*count -  58.66, count>500.62

Ch_2_lo = 0.06440*count -  2.600, count<503.00

Ch_2_hi =  0.1897*count -  65.63, count>503.00

Ch_3_lo = 0.03292*count -  1.383, count<500.85

Ch_3_hi =  0.2293*count -  99.74, count>500.85

--------------------------------------------------------------------------------------

Metop-C/3

Ch_1_lo = 0.05522*count -  2.229, count<498.68

Ch_1_hi =  0.1618*count -  55.38, count>498.68

Ch_2_lo = 0.06376*count -  2.611, count<500.01

Ch_2_hi =  0.1868*count -  64.13, count>500.01

Ch_3_lo = 0.03275*count -  1.329, count<498.72

Ch_3_hi =  0.2304*count -  99.91, count>498.72

--------------------------------------------------------------------------------------

NOAA-18 AVHRR

Ch_1_lo = 0.06165*count -  2.431, count<501.54

Ch_1_hi =  0.1838*count -  63.22, count>501.54

Ch_2_lo = 0.07527*count -  2.965, count<500.40

Ch_2_hi =  0.2258*count -  78.69, count>500.40

-------------------------------------------------------------------------------------

NOAA-19 AVHRR

Ch_1_lo = 0.05586*count -  2.172, count<496.43

Ch_1_hi =  0.1648*count -  56.65, count>496.43

Ch_2_lo = 0.06684*count -  2.592, count<500.37

Ch_2_hi =  0.1991*count -  68.74, count>500.37

--------------------------------------------------------------------------------------

 

 

The first 1b files produced with the updated CPIDS were:

NSS.HRPT.NN.D21348.S1406.E1418.B8539797.WI

NSS.GHRR.NN.D21348.S1209.E1404.B8539697.WI

 

NSS.HRPT.NP.D21348.S1155.E1210.B6623434.WI

NSS.GHRR.NP.D21348.S0953.E1148.B6623334.WI

 

For M3, M1 the first orbits processed will be the one running after orbit:

NSS.HRPT.M1.D21348.S0841.E0852.B4794444.GC

NSS.FRAC.M1.D21348.S1038.E1128.B4794545.MM

 

NSS.HRPT.M3.D21348.S0935.E0944.B1610202.GC

NSS.FRAC.M3.D21348.S0949.E1131.B1610203.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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