Administrative: NOAA-16, 18, 19, & MetOp-A/2, AVHRR, Monthly Visible Calibration Update, 11 September 2012 - Issued: September 11, 2012 1400 UTC

Subject: Administrative: NOAA-16, 18, 19, & MetOp-A/2, AVHRR, Monthly Visible Calibration Update, 11 September 2012 - Issued: September 11, 2012 1400 UTC

Topic: Visible calibration update for month of September 2012
Date/Time Issued: September 11, 2012 1400 UTC
Product(s) or Data Impacted: All products from channels 1, 2, and 3a
Date/Time of Initial Impact: September 11, 2012 1321 UTC
Date/Time of Expected End: Until Next Month's Coefficient Update
Length of Outage: N/A
Details/Specifics of Change:
On 11 September 2012 at approximately 13:21 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 25 September, in the middle of the two scheduled updates.
NOAA-16 AVHRR
Ch_1_lo = 0.05974*count - 2.303, count<498.96
Ch_1_hi = 0.1744*count - 59.26, count>498.96
Ch_2_lo = 0.06643*count - 2.509, count<500.16
Ch_2_hi = 0.1957*count - 67.18, count>500.16
NOAA-18 AVHRR
Ch_1_lo = 0.05605*count - 2.210, count<501.54
Ch_1_hi = 0.1671*count - 57.47, count>501.54
Ch_2_lo = 0.06481*count - 2.553, count<500.40
Ch_2_hi = 0.1945*count - 67.76, count>500.40
NOAA-19 AVHRR
Ch_1_lo = 0.05158*count - 2.005, count<496.43
Ch_1_hi = 0.1522*count - 52.30, count>496.43
Ch_2_lo = 0.05858*count - 2.272, count<500.37
Ch_2_hi = 0.1745*count - 60.24, count>500.37
MetOp-A/2
Ch_1_lo = 0.05499*count - 2.223, count<501.01
Ch_1_hi = 0.1625*count - 56.08, count>501.01
Ch_2_lo = 0.06567*count - 2.610, count<500.42
Ch_2_hi = 0.1950*count - 67.35, count>500.42
Ch_3_lo = 0.03291*count - 1.352, count<501.94
Ch_3_hi = 0.2286*count - 99.57, count>501.94
For NL/NN/NP, the first orbits processed were:
NSS.HRPT.NL.D12255.S1430.E1445.B6172424.WI
NSS.GHRR.NL.D12255.S1243.E1430.B6172324.WI

NSS.GHRR.NN.D12255.S1000.E1134.B3767273.GC
NSS.HRPT.NN.D12255.S1329.E1344.B3767474.EB

NSS.GHRR.NP.D12255.S1023.E1212.B1851718.GC
NSS.LHRR.NP.D12255.S1156.E1207.B1851818.GC
NSS.HRPT.NP.D12255.S1354.E1408.B1851919.GC
For MetOp-A/2, the first orbit processed was the one running after orbit:
NCS.FRAC.M2.D12255.S1123.E1219.B3059899.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 301-763-8136 x 138 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 and/or other contacts as necessary
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