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Administrative: NOAA-18, 19, Metop-B/1, Metop-A/2, Metop-C/3 AVHRR, Monthly Visible Calibration Update, 12 October 2021 - Issued: 12 October 1750Z

Subject: Administrative: NOAA-18, 19, Metop-B/1, Metop-A/2, Metop-C/3 AVHRR, Monthly Visible Calibration Update, 12 October 2021 - Issued: 12 October 1750Z

From: Trusted NESDIS NSOF Sender - NOAA Service Account

Date: 10/12/2021, 1:50 PM

To: espc.notification@noaa.gov

Subject: Administrative: NOAA-18, 19, MetOp-A/2, MetOp-B/1, & MetOp-C/3 AVHRR, Monthly Visible Calibration Update, 12 October 2021 - Issued: 12 October 2021 1750Z

Topic:   Visible calibration update for month of October 2021

Date/Time Issued:  October 12 2021 1750Z

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

Date/Time of Initial Impact:  October 12 2021 12:00Z

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

Length of Outage:   N/A

Details/Specifics of Change:

On 12 October 2021 at approximately 12:00Z, 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 October. These coefficients are intended to be optimal on October 26, in the middle of the two scheduled updates.

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Metop-B/1

Ch_1_lo = 0.05735*count -  2.259, count<500.62

Ch_1_hi =  0.1699*count -  58.61, count>500.62

Ch_2_lo = 0.06437*count -  2.599, count<503.00

Ch_2_hi =  0.1896*count -  65.60, count>503.00

Ch_3_lo = 0.03291*count -  1.383, count<500.85

Ch_3_hi =  0.2292*count -  99.71, count>500.85

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

Metop-A/2

Ch_1_lo = 0.05757*count -  2.328, count<501.01

Ch_1_hi =  0.1701*count -  58.72, count>501.01

Ch_2_lo = 0.07284*count -  2.895, count<500.42

Ch_2_hi =  0.2163*count -  74.71, count>500.42

Ch_3_lo = 0.03550*count -  1.459, count<501.94

Ch_3_hi =  0.2466*count - 107.40, count>501.94

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

Metop-C/3

Ch_1_lo = 0.05524*count -  2.230, count<498.68

Ch_1_hi =  0.1619*count -  55.40, count>498.68

Ch_2_lo = 0.06362*count -  2.605, count<500.01

Ch_2_hi =  0.1864*count -  63.99, count>500.01

Ch_3_lo = 0.03274*count -  1.328, count<498.72

Ch_3_hi =  0.2304*count -  99.89, count>498.72

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NOAA-18 AVHRR

Ch_1_lo = 0.06164*count -  2.430, count<501.54

Ch_1_hi =  0.1838*count -  63.20, count>501.54

Ch_2_lo = 0.07530*count -  2.966, count<500.40

Ch_2_hi =  0.2259*count -  78.72, count>500.40

Ch_2_hi =  0.2259*count -  78.72, count>500.40

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NOAA-19 AVHRR

Ch_1_lo = 0.05578*count -  2.168, count<496.43

Ch_1_hi =  0.1646*count -  56.56, count>496.43

Ch_2_lo = 0.06666*count -  2.585, count<500.37

Ch_2_hi =  0.1986*count -  68.55, count>500.37

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

 

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

NSS.HRPT.NN.D21285.S1453.E1508.B8450808.WI

NSS.GHRR.NN.D21285.S1259.E1452.B8450708.WI

 

NSS.HRPT.NP.D21285.S1234.E1249.B6534545.WI

NSS.GHRR.NP.D21285.S1042.E1234.B6534445.WI

 

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

NSS.HRPT.M1.D21285.S0845.E0855.B4704949.GC

NSS.FRAC.M1.D21285.S1042.E1133.B4705050.MM

 

NSS.HRPT.M2.D21285.S0355.E0400.B7773333.MO

NSS.FRAC.M2.D21285.S0924.E1105.B7773637.SV

 

NSS.HRPT.M3.D21285.S0938.E0947.B1520707.GC

NSS.FRAC.M3.D21285.S0952.E1134.B1520708.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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ppp@nesdis.noaa.gov

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