Back

Administrative:NOAA-16, 18, 19, & MetOp-A/2, AVHRR, Monthly Visible Calibration Update, 12 July 2011 - Issued: July 12, 2011 1945 UTC

Topic: Visible calibration update for month of July 2011.

Date/Time Issued: July 12, 2011 1945 UTC

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

Date/Time of Initial Impact: July 12, 2011 1406 UTC

Date/Time of Expected End: Until next update

Length of Outage: TBD
Details/Specifics of Change:
On 12 July 2011 at approximately 14:06 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 July. These coefficients are intended to be optimal on 26 July, in the middle of the two scheduled updates.

NOAA-16 AVHRR
Ch_1_lo = 0.05877*count - 2.266, count<498.96
Ch_1_hi = 0.1715*count - 58.30, count>498.96
Ch_2_lo = 0.06496*count - 2.454, count<500.16
Ch_2_hi = 0.1914*count - 65.69, count>500.16

NOAA-18 AVHRR
Ch_1_lo = 0.05516*count - 2.175, count<501.54
Ch_1_hi = 0.1645*count - 56.56, count>501.54
Ch_2_lo = 0.06348*count - 2.501, count<500.40
Ch_2_hi = 0.1905*count - 66.37, count>500.40

NOAA-19 AVHRR
Ch_1_lo = 0.05137*count - 1.997, count<496.43
Ch_1_hi = 0.1516*count - 52.09, count>496.43
Ch_2_lo = 0.05818*count - 2.256, count<500.37
Ch_2_hi = 0.1733*count - 59.83, count>500.37

MetOp-A/2
Ch_1_lo = 0.05455*count - 2.206, count<501.01
Ch_1_hi = 0.1612*count - 55.64, count>501.01
Ch_2_lo = 0.06502*count - 2.584, count<500.42
Ch_2_hi = 0.1931*count - 66.68, count>500.42
Ch_3_lo = 0.03261*count - 1.340, count<501.94
Ch_3_hi = 0.2265*count - 98.67, count>501.94

For NL/NN/NP, the first orbits processed were:
N1A.HRPT.NL.D11193.S1421.E1426.B5569595.WI
N1A.GHRR.NL.D11193.S1235.E1419.B5569495.WI

N1A.HRPT.NN.D11193.S1348.E1359.B3165050.EB
N1A.GHRR.NN.D11193.S1018.E1213.B3164849.GC

N1A.HRPT.NP.D11193.S1518.E1531.B1249797.GC
N1A.LHRR.NP.D11193.S1321.E1333.B1249696.GC
N1A.GHRR.NP.D11193.S1322.E1517.B1249697.GC

For MetOp-A/2, the first orbit processed was the one running after orbit:
NCS.FRAC.M2.D11193.S1336.E1431.B2453334.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


ppp@nesdis.noaa.gov

Back