Administrative: NOAA-18, 19, MetOp-A/2 & MetOp-B/1, AVHRR, Monthly Visible Calibration Update, 13 January 2015 - Issued: January 13, 2015 1600 UTC

Topic: Visible calibration update for month of January 2015

Date/Time Issued: January 13, 2015 1824 UTC

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

Date/Time of Initial Impact: January 13, 2015 1532 UTC

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

Length of Outage: N/A

Details/Specifics of Change:

On January 13 2015 at approximately 15:32 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 January. These coefficients are intended to be optimal on January 27, in the middle of the two scheduled updates.

Metop-B/1

Ch_1_lo = 0.05354*count - 2.109, count<500.62
Ch_1_hi = 0.1586*count - 54.72, count>500.62

Ch_2_lo = 0.05927*count - 2.393, count<503.00
Ch_2_hi = 0.1746*count - 60.41, count>503.00

Ch_3_lo = 0.03087*count - 1.297, count<500.85
Ch_3_hi = 0.2150*count - 93.54, count>500.85

Metop-A/2

Ch_1_lo = 0.05549*count - 2.244, count<501.01
Ch_1_hi = 0.1640*count - 56.60, count>501.01

Ch_2_lo = 0.06719*count - 2.671, count<500.42
Ch_2_hi = 0.1995*count - 68.91, count>500.42

Ch_3_lo = 0.03338*count - 1.372, count<501.94
Ch_3_hi = 0.2318*count - 100.98, count>501.94

NOAA-18 AVHRR

Ch_1_lo = 0.05812*count - 2.292, count<501.54
Ch_1_hi = 0.1733*count - 59.60, count>501.54

Ch_2_lo = 0.06776*count - 2.670, count<500.40
Ch_2_hi = 0.2033*count - 70.84, count>500.40

NOAA-19 AVHRR

Ch_1_lo = 0.05240*count - 2.037, count<496.43
Ch_1_hi = 0.1546*count - 53.13, count>496.43

Ch_2_lo = 0.05945*count - 2.306, count<500.37
Ch_2_hi = 0.1771*count - 61.14, count>500.37

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

NSS.HRPT.NP.D15013.S1627.E1635.B3056969.WI
NSS.GHRR.NP.D15013.S1452.E1626.B3056869.WI
NSS.LHRR.NP.D15013.S1554.E1604.B3056868.WI

NSS.HRPT.NN.D15013.S1512.E1523.B4972626.EB
NSS.GHRR.NN.D15013.S1450.E1636.B4972627.GC

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

NSS.HRPT.M1.D15013.S1355.E1405.B1204646.MI
NSS.FRAC.M1.D15013.S1427.E____.B12046__.SV

NSS.HRPT.M2.D15013.S1440.E1453.B4273333.MI
NSS.FRAC.M2.D15013.S1429.E____.B42733__.SV

Contact Person(s) Name/Email/Phone Number for Questions:
Dejiang.HanDejiang.Han@noaa.gov 301-817-4119 operations support
Xiangqian WuXiangqian.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 atESPCOperations@noaa.gov at 301-817-3880

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