Topic: Visible Calibration update for month of August 2019

Date/Time Issued: August 13, 2019 1506 UTC

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

Date/Time of Initial Impact: August 13, 2019 1226 UTC

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

Length of Outage: N/A

Details and Specifics of Change: On August 13,2019 at approximately 1226 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 August. These coefficients are intended to be optimal on August 27, in the middle of the two scheduled updates.

Metop-B/1

# Ch_1_lo = 0.05665*count - 2.231, count<500.62

# Ch_1_hi = 0.1678*count - 57.90, count>500.62

# Ch_2_lo = 0.06345*count - 2.562, count<503.00

# Ch_2_hi = 0.1869*count - 64.66, count>503.00

# Ch_3_lo = 0.03262*count - 1.371, count<500.85

# Ch_3_hi = 0.2272*count - 98.83, count>500.85

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Metop-A/2

# Ch_1_lo = 0.05658*count - 2.288, count<501.01

# Ch_1_hi = 0.1672*count - 57.70, count>501.01

# Ch_2_lo = 0.07055*count - 2.804, count<500.42

# Ch_2_hi = 0.2095*count - 72.35, count>500.42

# Ch_3_lo = 0.03465*count - 1.424, count<501.94

# Ch_3_hi = 0.2407*count - 104.84, count>501.94

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Metop-C/3

# Ch_1_lo = 0.05413*count - 2.185, count<498.68

# Ch_1_hi = 0.1586*count - 54.28, count>498.68

# Ch_2_lo = 0.06179*count - 2.530, count<500.01

# Ch_2_hi = 0.1810*count - 62.15, count>500.01

# Ch_3_lo = 0.03156*count - 1.280, count<498.72

# Ch_3_hi = 0.2220*count - 96.28, count>498.72

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NOAA-18 AVHRR

# Ch_1_lo = 0.06221*count - 2.453, count<501.54

# Ch_1_hi = 0.1855*count - 63.79, count>501.54

# Ch_2_lo = 0.07359*count - 2.899, count<500.40

# Ch_2_hi = 0.2208*count - 76.94, count>500.40

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NOAA-19 AVHRR

# Ch_1_lo = 0.05479*count - 2.130, count<496.43

# Ch_1_hi = 0.1616*count - 55.55, count>496.43

# Ch_2_lo = 0.06445*count - 2.499, count<500.37

# Ch_2_hi = 0.1920*count - 66.27, count>500.37

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

NSS.GHRR.NN.D19225.S1118.E1313.B7333940.WI

NSS.HRPT.NN.D19225.S1319.E1328.B7334040.WI

NSS.GHRR.NP.D19225.S1102.E1233.B5417879.SV

NSS.HRPT.NP.D19225.S1252.E1305.B5417979.MO

NSS.LHRR.NP.D19225.S1413.E1417.B5418080.GC

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

NSS.HRPT.M1.D19225.S0951.E0959.B3581212.GC

NSS.FRAC.M1.D19225.S1146.E1237.B3581313.MM

NSS.HRPT.M2.D19225.S0502.E0507.B6647878.MO

NSS.FRAC.M2.D19225.S0850.E1032.B6649899.SV

NSS.HRPT.M3.D19225.S0917.E0926.B0396969.GC

NSS.FRAC.M3.D19225.S0933.E1113.B0396970.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 and 301-817-3880

Web Site(s) for applicable information: N/A

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