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Administrative: NOAA-18, 19, MetOp-A/2, MetOp-B/1, & MetOp-C/3 AVHRR, Monthly Visible Calibration Update, September 14, 2021 - Issued: September 14, 2021 1903Z

Subject: Administrative: NOAA-18, 19, MetOp-A/2, MetOp-B/1, & MetOp-C/3 AVHRR, Monthly Visible Calibration Update, September 14, 2021 - Issued: September 14, 2021 1903Z

From: Trusted NESDIS NSOF Sender - NOAA Service Account

Date: 9/14/2021, 3:03 PM

To: espc.notification@noaa.gov

Topic:   Visible calibration update for month of September 2021

Date/Time Issued:  September 14, 2021 1903Z

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

Date/Time of Initial Impact:  September 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 September 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 September. These coefficients are intended to be optimal on September 28, 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 = 0.05753*count -  2.326, count<501.01

Ch_1_hi =  0.1700*count -  58.67, count>501.01

Ch_2_lo = 0.07276*count -  2.892, count<500.42

Ch_2_hi =  0.2161*count -  74.62, count>500.42

Ch_3_lo = 0.03545*count -  1.457, count<501.94

Ch_3_hi =  0.2463*count - 107.26, count>501.94

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

Metop-C/3

Ch_1_lo = 0.05521*count -  2.229, count<498.68

Ch_1_hi =  0.1618*count -  55.36, count>498.68

Ch_2_lo = 0.06354*count -  2.602, count<500.01

Ch_2_hi =  0.1862*count -  63.91, count>500.01

Ch_3_lo = 0.03274*count -  1.328, count<498.72

Ch_3_hi =  0.2303*count -  99.87, count>498.72

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NOAA-18 AVHRR

Ch_1_lo = 0.06172*count -  2.434, count<501.54

Ch_1_hi =  0.1840*count -  63.29, count>501.54

Ch_2_lo = 0.07533*count -  2.968, count<500.40

Ch_2_hi =  0.2260*count -  78.75, count>500.40

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NOAA-19 AVHRR

Ch_1_lo = 0.05575*count -  2.167, count<496.43

Ch_1_hi =  0.1645*count -  56.53, count>496.43

Ch_2_lo = 0.06658*count -  2.582, count<500.37

Ch_2_hi =  0.1983*count -  68.47, count>500.37

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

 

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

NSS.HRPT.NN.D21257.S1525.E1530.B8411313.WI

NSS.GHRR.NN.D21257.S1148.E1343.B8411112.WI

 

NSS.HRPT.NP.D21257.S1302.E1317.B6495050.WI

NSS.GHRR.NP.D21257.S1109.E1302.B6494950.WI

 

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

NSS.HRPT.M1.D21257.S0823.E0834.B4665151.GC

NSS.FRAC.M1.D21257.S1021.E1111.B4665252.MM

 

NSS.HRPT.M2.D21257.S0335.E0340.B7733535.MO

NSS.FRAC.M2.D21257.S0904.E1045.B7733839.SV

 

NSS.HRPT.M3.D21257.S0917.E0926.B1480909.GC

NSS.FRAC.M3.D21257.S0932.E1114.B1480910.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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