Administrative: NOAA-16, 18, 19, & MetOp-A/2, AVHRR, Monthly Visible Calibration Update, 14 June 2011 - Issued: June 14, 2011 1730 UTC

Topic: Visible calibration update for month of June 2011.

Date/Time Issued: June 14, 2011 1500 UTC

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

Date/Time of Initial Impact: June 14, 2011 1110 UTC

Date/Time of Expected End: Until next update

Length of Outage: TBD

Details/Specifics of Change:
On 14 June 2011 at approximately 11:10 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 June. These coefficients are intended to be optimal on 28 June, in the middle of the two scheduled updates.

NOAA-16 AVHRR
Ch_1_lo = 0.05871*count - 2.263, count<498.96
Ch_1_hi = 0.1714*count - 58.24, count>498.96
Ch_2_lo = 0.06487*count - 2.450, count<500.16
Ch_2_hi = 0.1911*count - 65.59, count>500.16

NOAA-18 AVHRR
Ch_1_lo = 0.05512*count - 2.173, count<501.54
Ch_1_hi = 0.1643*count - 56.51, count>501.54
Ch_2_lo = 0.06344*count - 2.499, count<500.40
Ch_2_hi = 0.1903*count - 66.32, count>500.40

NOAA-19 AVHRR
Ch_1_lo = 0.05137*count - 1.997, count<496.43
Ch_1_hi = 0.1515*count - 52.09, count>496.43
Ch_2_lo = 0.05801*count - 2.250, count<500.37
Ch_2_hi = 0.1728*count - 59.66, count>500.37

MetOp-A/2
Ch_1_lo = 0.05453*count - 2.205, count<501.01
Ch_1_hi = 0.1611*count - 55.62, count>501.01
Ch_2_lo = 0.06497*count - 2.582, count<500.42
Ch_2_hi = 0.1930*count - 66.63, count>500.42
Ch_3_lo = 0.03258*count - 1.339, count<501.94
Ch_3_hi = 0.2263*count - 98.58, count>501.94

For NL/NN/NP, the first orbits processed were:
NSS.HRPT.NL.D11165.S1044.E1057.B5529797.CF
NSS.GHRR.NL.D11165.S0930.E1125.B5529798.WI

NSS.HRPT.NN.D11165.S1019.E1033.B3125353.MO
NSS.GHRR.NN.D11165.S1207.E1333.B3125455.GC

NSS.LHRR.NP.D11165.S0917.E0923.B1209898.GC
NSS.HRPT.NP.D11165.S1147.E1201.B1210000.GC
NSS.GHRR.NP.D11165.S1000.E1147.B1209900.GC

For MetOp-A/2, the first orbit processed was the one running after orbit:
NCS.FRAC.M2.D11165.S0908.E1000.B2413333.MM

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