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Administrative: NOAA-18, 19, MetOp-A/2 & MetOp-B/1, AVHRR, Monthly Visible Calibration Update, 10 March 2015 - Issued: March 10, 2015 2154 UTC

Subject: Administrative: NOAA-18, 19, MetOp-A/2 & MetOp-B/1, AVHRR, Monthly Visible Calibration Update, 10 March 2015 - Issued: March 10, 2015 2154 UTC

Topic: Visible calibration update for month of March 2015

Date/Time Issued: March 10, 2015 2154 UTC

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

Date/Time of Initial Impact: March 10, 2015 1426 UTC

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

Length of Outage: N/A

Details/Specifics of Change: On March 10 2015 at approximately 14:26 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 March. These coefficients are intended to be optimal on March 28, in the middle of the two scheduled updates.

Metop-B/1

Ch_1_lo = 0.05388*count - 2.122, count<500.62
Ch_1_hi = 0.1596*count - 55.07, count>500.62

Ch_2_lo = 0.05984*count - 2.416, count<503.00
Ch_2_hi = 0.1763*count - 60.98, count>503.00

Ch_3_lo = 0.03101*count - 1.303, count<500.85
Ch_3_hi = 0.2160*count - 93.93, count>500.85

Metop-A/2

Ch_1_lo = 0.05552*count - 2.245, count<501.01
Ch_1_hi = 0.1641*count - 56.63, count>501.01

Ch_2_lo = 0.06725*count - 2.673, count<500.42
Ch_2_hi = 0.1997*count - 68.97, count>500.42

Ch_3_lo = 0.03343*count - 1.374, count<501.94
Ch_3_hi = 0.2322*count - 101.15, count>501.94

NOAA-18 AVHRR

Ch_1_lo = 0.05826*count - 2.297, count<501.54
Ch_1_hi = 0.1737*count - 59.74, count>501.54

Ch_2_lo = 0.06795*count - 2.677, count<500.40
Ch_2_hi = 0.2039*count - 71.04, count>500.40

NOAA-19 AVHRR

Ch_1_lo = 0.05249*count - 2.040, count<496.43
Ch_1_hi = 0.1549*count - 53.23, count>496.43

Ch_2_lo = 0.05962*count - 2.312, count<500.37
Ch_2_hi = 0.1776*count - 61.31, count>500.37

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

NSS.HRPT.NP.D15069.S1438.E1452.B3135858.GC
NSS.GHRR.NP.D15069.S1250.E1437.B3135758.GC
NSS.LHRR.NP.D15069.S1726.E1738.B3135960.WI

NSS.HRPT.NN.D15069.S1428.E1438.B5051616.MO
NSS.GHRR.NN.D15069.S1402.E1557.B5051617.GC

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

NSS.HRPT.M1.D15069.S0907.E0917.B1283939.GC
NSS.FRAC.M1.D15069.S1329.E____.B12841__.SV

NSS.HRPT.M2.D15069.S1345.E1352.B4352828.MI
NSS.FRAC.M2.D15069.S1150.E____.B43527__.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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