Topic: Visible calibration update for month of May 2018
Date/Time Issued:\xA0 May 08, 2018 2333 UTC
Product(s) or Data Impacted:All products from channels 1, 2, and 3a
Date/Time of Initial Impact:\xA0\xA0\xA0\xA0 May 08, 2018 1224 UTC
Date/Time of Expected End:\xA0 Until Next Month's Coefficient Update
Length of Outage:\xA0\xA0 N/A
Details/Specifics of Change:

On May 08, 2018 at approximately 12:24 UTC, the following update of the calibration coefficients was implemented in the level 1B processing for NOAA-18, NOAA-19, MetOp-A/2 and MetOp-B/1 for the month of May. These coefficients are intended to be optimal on May 26, in the middle of the two scheduled updates.

Metop-B/1

\xA0 Ch_1_lo = 0.05612*count -\xA0 2.210, count<500.62

\xA0 Ch_1_hi =\xA0 0.1663*count -\xA0 57.36, count>500.62

\xA0

\xA0 Ch_2_lo = 0.06256*count -\xA0 2.526, count<503.00

\xA0 Ch_2_hi =\xA0 0.1843*count -\xA0 63.76, count>503.00

\xA0

\xA0 Ch_3_lo = 0.03234*count -\xA0 1.359, count<500.85

\xA0 Ch_3_hi =\xA0 0.2252*count -\xA0 97.97, count>500.85

\xA0

Metop-A/2
\xA0 Ch_1_lo = 0.05631*count -\xA0 2.277, count<501.01

\xA0 Ch_1_hi =\xA0 0.1664*count -\xA0 57.43, count>501.01

\xA0

\xA0 Ch_2_lo = 0.06975*count -\xA0 2.773, count<500.42

\xA0 Ch_2_hi =\xA0 0.2072*count -\xA0 71.54, count>500.42

\xA0

\xA0 Ch_3_lo = 0.03431*count -\xA0 1.410, count<501.94

\xA0 Ch_3_hi =\xA0 0.2383*count - 103.81, count>501.94

NOAA-18 AVHRR

\xA0 Ch_1_lo = 0.06104*count -\xA0 2.407, count<501.54

\xA0 Ch_1_hi =\xA0 0.1820*count -\xA0 62.58, count>501.54

\xA0

\xA0 Ch_2_lo = 0.07190*count -\xA0 2.833, count<500.40

\xA0 Ch_2_hi =\xA0 0.2157*count -\xA0 75.17, count>500.40

NOAA-19 AVHRR

\xA0 Ch_1_lo = 0.05410*count -\xA0 2.103, count<496.43

\xA0 Ch_1_hi =\xA0 0.1596*count -\xA0 54.86, count>496.43

\xA0

\xA0

\xA0 Ch_2_lo = 0.06302*count -\xA0 2.444, count<500.37

\xA0 Ch_2_hi =\xA0 0.1877*count -\xA0 64.80, count>500.37

\xA0

\xA0

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

NSS.HRPT.NP.D18128.S1319.E1331.B4765858.GC
\xA0NSS.GHRR.NP.D18128.S1121.E1316.B4765758.GC
\xA0NSS.LHRR.NP.D18128.S1306.E1309.B4765858.GC

\xA0

\xA0 NSS.HRPT.NN.D18128.S1600.E1609.B6682020.GC

\xA0NSS.GHRR.NN.D18128.S1047.E1241.B6681718.WI

\xA0

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

\xA0

    \xA0NSS.HRPT.M1.D18128.S0909.E0918.B2924848.GC

     NSS.FRAC.M1.D18128.S1104.E1155.B2924949.MM

    \xA0

     NSS.HRPT.M2.D18128.S0618.E0623.B5991515.MO

     NSS.FRAC.M2.D18128.S0825.E1006.B5993435.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:\xA0 ESPC Operations at ESPCOperations@noaa.gov at 301-817-3880
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