Topic:   Visible calibration update for month of March 2021

 

Date/Time Issued:  March 9 2021 1700 UTC

 

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

 

Date/Time of Initial Impact:  March 9 2021 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 March 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-A/2, MetOp-B/1, and MetOp-C/3 for the month of March. These coefficients are intended to be optimal on March 27, in the middle of the two scheduled updates.

 

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

Metop-B/1

Ch_1_lo = 0.05719*count -  2.253, count<500.62

Ch_1_hi =  0.1695*count -  58.45, count>500.62

Ch_2_lo = 0.06425*count -  2.594, count<503.00

Ch_2_hi =  0.1893*count -  65.48, count>503.00

Ch_3_lo = 0.03288*count -  1.382, count<500.85

Ch_3_hi =  0.2290*count -  99.61, count>500.85

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

Metop-A/2

Ch_1_lo = 0.05725*count -  2.315, count<501.01

Ch_1_hi =  0.1692*count -  58.38, count>501.01

Ch_2_lo = 0.07218*count -  2.869, count<500.42

Ch_2_hi =  0.2144*count -  74.02, count>500.42

Ch_3_lo = 0.03516*count -  1.445, count<501.94

Ch_3_hi =  0.2442*count - 106.37, count>501.94

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

Metop-C/3

Ch_1_lo = 0.05507*count -  2.223, count<498.68

Ch_1_hi =  0.1614*count -  55.23, count>498.68

Ch_2_lo = 0.06390*count -  2.617, count<500.01

Ch_2_hi =  0.1872*count -  64.28, count>500.01

Ch_3_lo = 0.03271*count -  1.327, count<498.72

Ch_3_hi =  0.2302*count -  99.80, count>498.72

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

NOAA-18 AVHRR

Ch_1_lo = 0.06172*count -  2.433, count<501.54

Ch_1_hi =  0.1840*count -  63.28, count>501.54

Ch_2_lo = 0.07503*count -  2.956, count<500.40

Ch_2_hi =  0.2251*count -  78.44, count>500.40

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

NOAA-19 AVHRR

Ch_1_lo = 0.05551*count -  2.158, count<496.43

Ch_1_hi =  0.1638*count -  56.29, count>496.43

Ch_2_lo = 0.06605*count -  2.562, count<500.37

Ch_2_hi =  0.1967*count -  67.92, count>500.37

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

 

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

NSS.HRPT.NN.D21068.S1152.E1206.B8144243.CF

NSS.GHRR.NN.D21068.S1226.E1420.B8144344.WI

 

NSS.HRPT.NP.D21068.S1318.E1328.B6228282.MI

NSS.GHRR.NP.D21068.S1119.E1257.B6228182.SV

 

For M3, M2 & M1 the first orbits processed will be the one running after orbit:

NSS.HRPT.M1.D21068.S0833.E0844.B4396666.GC

NSS.FRAC.M1.D21068.S1031.E1121.B4396767.MM

 

NSS.HRPT.M2.D21068.S0347.E0351.B7465050.MO

NSS.FRAC.M2.D21068.S0916.E1057.B7465354.SV

 

NSS.HRPT.M3.D21068.S0928.E0937.B1212424.GC

NSS.FRAC.M3.D21068.S0943.E1125.B1212425.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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