Administrative: NOAA-16, 18, 19, & MetOp-A/2, AVHRR, Monthly Visible Calibration Update, 13 September 2011 - Issued: September 13, 2011 1325 UTC

Topic: Visible calibration update for month of September 2011

Date/Time Issued: September 13, 2011 1325 UTC

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

Date/Time of Initial Impact: September 13, 2011 1137 UTC

Date/Time of Expected End: Until next update

Length of Event: TBA

Details/Specifics of Change:

On 13 September 2011 at approximately 11:37 UTC, the following update of the calibration coefficients was implemented in the level 1B processing for NOAA-16/18/19 and MetOp-A/2 for the month of September. These coefficients are intended to be optimal on 27 September, in the middle of the two scheduled updates.

NOAA-16 AVHRR
Ch_1_lo = 0.05891*count - 2.271, count<498.96
Ch_1_hi = 0.1719*count - 58.44, count>498.96
Ch_2_lo = 0.06518*count - 2.462, count<500.16
Ch_2_hi = 0.1920*count - 65.90, count>500.16

NOAA-18 AVHRR
Ch_1_lo = 0.05526*count - 2.179, count<501.54
Ch_1_hi = 0.1648*count - 56.66, count>501.54
Ch_2_lo = 0.06368*count - 2.509, count<500.40
Ch_2_hi = 0.1911*count - 66.58, count>500.40

NOAA-19 AVHRR
Ch_1_lo = 0.05132*count - 1.995, count<496.43
Ch_1_hi = 0.1514*count - 52.04, count>496.43
Ch_2_lo = 0.05787*count - 2.244, count<500.37
Ch_2_hi = 0.1724*count - 59.51, count>500.37

MetOp-A/2
Ch_1_lo = 0.05466*count - 2.210, count<501.01
Ch_1_hi = 0.1615*count - 55.75, count>501.01
Ch_2_lo = 0.06523*count - 2.593, count<500.42
Ch_2_hi = 0.1937*count - 66.90, count>500.42
Ch_3_lo = 0.03265*count - 1.342, count<501.94
Ch_3_hi = 0.2268*count - 98.77, count>501.94

For NL/NN/NP, the first orbits processed were:
NSS.HRPT.NL.D11256.S1333.E1347.B5658484.WI
NSS.GHRR.NL.D11256.S1142.E1332.B5658384.WI

NSS.HRPT.NN.D11256.S1231.E1245.B3253838.EB
NSS.GHRR.NN.D11256.S1409.E1539.B3253940.GC

NSS.GHRR.NP.D11256.S0913.E1059.B1338283.GC
NSS.LHRR.NP.D11256.S1047.E1051.B1338383.GC
NSS.HRPT.NP.D11256.S1241.E1255.B1338484.GC

For MetOp-A/2, the first orbit processed was the one running after orbit:
NCS.FRAC.M2.D11256.S0926.E0926.B2542626.MM

Contact Information for Further Information: Dejiang.Han Dejiang.Han@noaa.gov 301-817-4119 .
operations support Xiangqian Wu Xiangqian.Wu@noaa.gov 301-763-8136 x 138 instrument scientist.
ESPC Operations at ESPCOperations@noaa.gov at 301-817-3880 .

Web Site(s)for applicable information:
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