Topic:   Visible calibration update for month of July 2021

 

Date/Time Issued:  July 13, 2021 1700Z

 

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

 

Date/Time of Initial Impact:  July 13 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 13 July 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 July. These coefficients are intended to be optimal on July 27, in the middle of the two scheduled updates.

 

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

Metop-B/1

Ch_1_lo = 0.05728*count - 2.256, count<500.62

Ch_1_hi = 0.1697*count - 58.54, count>500.62

Ch_2_lo = 0.06431*count - 2.597, count<503.00

Ch_2_hi = 0.1894*count - 65.53, count>503.00

Ch_3_lo = 0.03288*count - 1.382, count<500.85

Ch_3_hi = 0.2290*count - 99.60, count>500.85

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

Metop-A/2

Ch_1_lo = 0.05743*count - 2.322, count<501.01

Ch_1_hi = 0.1697*count - 58.57, count>501.01

Ch_2_lo = 0.07249*count - 2.881, count<500.42

Ch_2_hi = 0.2153*count - 74.34, count>500.42

Ch_3_lo = 0.03533*count - 1.452, count<501.94

Ch_3_hi = 0.2454*count - 106.87, count>501.94

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

Metop-C/3

Ch_1_lo = 0.05500*count - 2.220, count<498.68

Ch_1_hi = 0.1611*count - 55.15, count>498.68

Ch_2_lo = 0.06344*count - 2.598, count<500.01

Ch_2_hi = 0.1858*count - 63.81, count>500.01

Ch_3_lo = 0.03266*count - 1.325, count<498.72

Ch_3_hi = 0.2297*count - 99.62, count>498.72

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

NOAA-18 AVHRR

Ch_1_lo = 0.06165*count - 2.431, count<501.54

Ch_1_hi = 0.1838*count - 63.21, count>501.54

Ch_2_lo = 0.07519*count - 2.962, count<500.40

Ch_2_hi = 0.2256*count - 78.61, count>500.40

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

NOAA-19 AVHRR

Ch_1_lo = 0.05567*count - 2.164, count<496.43

Ch_1_hi = 0.1642*count - 56.45, count>496.43

Ch_2_lo = 0.06640*count - 2.575, count<500.37

Ch_2_hi = 0.1978*count - 68.28, count>500.37

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

 

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

NSS.HRPT.NN.D21194.S1436.E1440.B8322323.MI

NSS.GHRR.NN.D21194.S1426.E1612.B8322324.WI

 

NSS.HRPT.NP.D21194.S1159.E1213.B6406060.WI

NSS.GHRR.NP.D21194.S1006.E1159.B6405960.WI

 

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

NSS.HRPT.M1.D21194.S0826.E0838.B4575656.GC

NSS.FRAC.M1.D21194.S1024.E1114.B4575757.MM

 

NSS.HRPT.M2.D21194.S0339.E0344.B7644040.MO

NSS.FRAC.M2.D21194.S0908.E1050.B7644344.SV

 

NSS.HRPT.M3.D21194.S0921.E0930.B1391414.GC

NSS.FRAC.M3.D21194.S0937.E1117.B1391415.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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