Administrative: NOAA-18, 19, Metop-B/1, Metop-A/2, Metop-C/3 AVHRR, Monthly Visible Calibration Update, 8 June 2021 - Issued: 8 June 2021 1817Z

From: Trusted NESDIS NSOF Sender - NOAA Service Account

Date: 6/8/2021, 2:17 PM

To: espc.notification@noaa.gov

Topic:   Visible calibration update for month of June 2021

Date/Time Issued:  June 8 2021 1817Z

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

Date/Time of Initial Impact:  June 8 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 8 June 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 June. These coefficients are intended to be optimal on June 26, in the middle of the two scheduled updates.

--------------------------------------------------------------------------------------
Metop-B/1
Ch_1_lo = 0.05726*count -  2.255, count<500.62
Ch_1_hi =  0.1696*count -  58.52, count>500.62
Ch_2_lo = 0.06426*count -  2.595, count<503.00
Ch_2_hi =  0.1893*count -  65.48, count>503.00
Ch_3_lo = 0.03287*count -  1.381, count<500.85
Ch_3_hi =  0.2290*count -  99.59, count>500.85
 --------------------------------------------------------------------------------------
Metop-A/2
Ch_1_lo = 0.05738*count -  2.320, count<501.01
Ch_1_hi =  0.1696*count -  58.52, count>501.01
Ch_2_lo = 0.07236*count -  2.876, count<500.42
Ch_2_hi =  0.2149*count -  74.21, count>500.42
Ch_3_lo = 0.03536*count -  1.453, count<501.94
Ch_3_hi =  0.2456*count - 106.97, count>501.94
--------------------------------------------------------------------------------------
Metop-C/3
Ch_1_lo = 0.05498*count -  2.220, count<498.68
Ch_1_hi =  0.1611*count -  55.14, count>498.68
Ch_2_lo = 0.06351*count -  2.601, count<500.01
Ch_2_hi =  0.1861*count -  63.88, count>500.01
Ch_3_lo = 0.03266*count -  1.325, count<498.72
Ch_3_hi =  0.2298*count -  99.65, count>498.72
--------------------------------------------------------------------------------------
NOAA-18 AVHRR
Ch_1_lo = 0.06171*count -  2.433, count<501.54
Ch_1_hi =  0.1840*count -  63.28, count>501.54
Ch_2_lo = 0.07517*count -  2.962, count<500.40
Ch_2_hi =  0.2256*count -  78.59, count>500.40
-------------------------------------------------------------------------------------
NOAA-19 AVHRR
Ch_1_lo = 0.05563*count -  2.162, count<496.43
Ch_1_hi =  0.1641*count -  56.41, count>496.43
Ch_2_lo = 0.06631*count -  2.572, count<500.37
Ch_2_hi =  0.1975*count -  68.19, count>500.37
--------------------------------------------------------------------------------------

The first 1b files produced with the updated CPIDS were:
NSS.HRPT.NN.D21159.S1445.E1501.B8272929.WI
NSS.GHRR.NN.D21159.S1252.E1445.B8272829.WI

NSS.HRPT.NP.D21159.S1209.E1223.B6356666.WI
NSS.GHRR.NP.D21159.S1016.E1208.B6356566.WI

For M3, M2 & M1 the first orbits processed will be the one running after orbit:
NSS.HRPT.M1.D21159.S0851.E0902.B4525959.GC
NSS.FRAC.M1.D21159.S0907.E0957.B4525959.MM

NSS.HRPT.M2.D21158.S0425.E0429.B7592929.MO
NSS.FRAC.M2.D21159.S0932.E1114.B7594647.SV

NSS.HRPT.M3.D21159.S0946.E0954.B1341717.GC
NSS.FRAC.M3.D21159.S0819.E1001.B1341617.SV

Contact Person(s) Name/Email/Phone Number for Questions:
Dejiang.Han Dejiang.Han@noaa.gov 301-817-4119 operations support
Xiangqian Wu 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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