Administrative: NOAA-18, 19, MetOp-A/2 & MetOp-B/1, AVHRR, Monthly Visible Calibration Update, 14 July 2015 - Issued: July 15, 2015 1437 UTC

Subject: Administrative: NOAA-18, 19, MetOp-A/2 & MetOp-B/1, AVHRR, Monthly Visible Calibration Update, 14 July 2015 - Issued: July 15, 2015 1437 UTC

Topic: Visible calibration update for month of July 2015

Date/Time Issued: July 15, 2015 1437 UTC

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

Date/Time of Initial Impact: July 14, 2015 1435 UTC

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

Length of Outage: N/A

Details/Specifics of Change:

On July 14 2015 at approximately 14:35 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 June. These coefficients are intended to be optimal on July 28, in the middle of the two scheduled updates.

Metop-B/1

Ch_1_lo = 0.05445*count - 2.144, count<500.62

Ch_1_hi = 0.1613*count - 55.64, count>500.62

Ch_2_lo = 0.06039*count - 2.438, count<503.00

Ch_2_hi = 0.1779*count - 61.54, count>503.00

Ch_3_lo = 0.03117*count - 1.310, count<500.85

Ch_3_hi = 0.2171*count - 94.42, count>500.85

Metop-A/2

Ch_1_lo = 0.05564*count - 2.250, count<501.01

Ch_1_hi = 0.1644*count - 56.74, count>501.01

Ch_2_lo = 0.06753*count - 2.684, count<500.42

Ch_2_hi = 0.2006*count - 69.26, count>500.42

Ch_3_lo = 0.03347*count - 1.375, count<501.94

Ch_3_hi = 0.2324*count - 101.25, count>501.94

NOAA-18 AVHRR

Ch_1_lo = 0.05854*count - 2.308, count<501.54

Ch_1_hi = 0.1745*count - 60.02, count>501.54

Ch_2_lo = 0.06835*count - 2.693, count<500.40

Ch_2_hi = 0.2051*count - 71.46, count>500.40

NOAA-19 AVHRR

Ch_1_lo = 0.05264*count - 2.046, count<496.43

Ch_1_hi = 0.1553*count - 53.38, count>496.43

Ch_2_lo = 0.05990*count - 2.323, count<500.37

Ch_2_hi = 0.1784*count - 61.59, count>500.37

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

NSS.HRPT.NP.D15195.S1434.E1447.B3313636.GC

NSS.GHRR.NP.D15195.S1247.E1433.B3313536.GC

NSS.LHRR.NP.D15195.S1722.E1734.B3264343.WI

NSS.HRPT.NN.D15195.S1536.E1549.B5229595.EB

NSS.GHRR.NN.D15195.S1524.E1702.B5229596.GC

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

NSS.HRPT.M1.D15195.S0901.E0910.B1462929.GC

NSS.FRAC.M1.D15195.S1142.E1237.B1463031.SV

NSS.HRPT.M2.D15195.S1337.E1344.B4531818.MI

NSS.FRAC.M2.D15195.S1142.E1323.B4531718.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