Administrative: NOAA-18, 19, MetOp-A/2 & MetOp-B/1, AVHRR, Monthly Visible Calibration Update, 14 April 2015 - Issued: April 14, 2015 1900 UTC

Subject: Administrative: NOAA-18, 19, MetOp-A/2 & MetOp-B/1, AVHRR, Monthly Visible Calibration Update, 14 April 2015 - Issued: April 14, 2015 1900 UTC
To: _NESDIS OSDPD ESPC OUTAGE Notification

Topic: Visible calibration update for month of April 2015

Date/Time Issued: April 14, 2015 1900 UTC
Product(s) or Data Impacted: All products from channels 1, 2, and 3a
Date/Time of Initial Impact: April 14, 2015 1415 UTC
Date/Time of Expected End: Until Next Month's Coefficient Update
Length of Outage: N/A

Details/Specifics of Change:
On April 14 2015 at approximately 14:15 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 April. These coefficients are intended to be optimal on April 28, in the middle of the two scheduled updates.

Metop-B/1

Ch_1_lo = 0.05412*count - 2.131, count<500.62
Ch_1_hi = 0.1603*count - 55.31, count>500.62

Ch_2_lo = 0.06037*count - 2.438, count<503.00
Ch_2_hi = 0.1778*count - 61.52, count>503.00

Ch_3_lo = 0.03106*count - 1.305, count<500.85
Ch_3_hi = 0.2163*count - 94.10, count>500.85

Metop-A/2

Ch_1_lo = 0.05558*count - 2.247, count<501.01
Ch_1_hi = 0.1642*count - 56.68, count>501.01

Ch_2_lo = 0.06747*count - 2.682, count<500.42
Ch_2_hi = 0.2004*count - 69.19, count>500.42

Ch_3_lo = 0.03344*count - 1.374, count<501.94
Ch_3_hi = 0.2323*count - 101.18, count>501.94

NOAA-18 AVHRR

Ch_1_lo = 0.05833*count - 2.300, count<501.54
Ch_1_hi = 0.1739*count - 59.81, count>501.54

Ch_2_lo = 0.06805*count - 2.681, count<500.40
Ch_2_hi = 0.2042*count - 71.15, count>500.40

NOAA-19 AVHRR

Ch_1_lo = 0.05254*count - 2.042, count<496.43
Ch_1_hi = 0.1550*count - 53.28, count>496.43

Ch_2_lo = 0.05970*count - 2.315, count<500.37
Ch_2_hi = 0.1778*count - 61.39, count>500.37

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

NSS.HRPT.NP.D15104.S1449.E1503.B3185252.GC
NSS.GHRR.NP.D15104.S1301.E1448.B3185152.GC
NSS.LHRR.NP.D15104.S1738.E1749.B3185354.WI

NSS.HRPT.NN.D15104.S1429.E1440.B5101010.MO
NSS.GHRR.NN.D15104.S1423.E1601.B5101011.GC

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

NSS.HRPT.M1.D15104.S1412.E1424.B1333939.MI
NSS.FRAC.M1.D15104.S1305.E____.B13338__.SV

NSS.HRPT.M2.D15104.S0735.E0748.B4402121.EB
NSS.FRAC.M2.D15104.S1126.E____.B44024__.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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