Topic:
Visible calibration update for month of February 2011
Date/Time(UTC) Message Issued:
8 February 2011, 1415 UTC
Satellite(s) Involved:
NOAA-16, 18, 19, & MetOp-2/A
Instrument(s) Involved:
AVHRR
Product(s) Involved/Affected:
All products from channels 1, 2, and 3a.
Date/Time(UTC) of Initial Implementation:
8 February 2011, Time 1249 UTC
Details/Specifics of Change:
On 8 February 2011 at approximately 12:49 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 February. These coefficients are intended to be optimal on 22 February, in the middle of the two scheduled updates.
NOAA-16 AVHRR
Ch_1_lo = 0.05843*count - 2.253, count<498.96
Ch_1_hi = 0.1705*count - 57.96, count>498.96
Ch_2_lo = 0.06445*count - 2.434, count<500.16
Ch_2_hi = 0.1899*count - 65.17, count>500.16
NOAA-18 AVHRR
Ch_1_lo = 0.05489*count - 2.164, count<501.54
Ch_1_hi = 0.1637*count - 56.28, count>501.54
Ch_2_lo = 0.06300*count - 2.482, count<500.40
Ch_2_hi = 0.1890*count - 65.87, 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 = 0.05760*count - 2.234, count<500.37
Ch_2_hi = 0.1716*count - 59.23, count>500.37
Metop-A/2
Ch_1_lo = 0.05439*count - 2.199, count<501.01
Ch_1_hi = 0.1607*count - 55.47, count>501.01
Ch_2_lo = 0.06470*count - 2.572, count<500.42
Ch_2_hi = 0.1922*count - 66.36, count>500.42
Ch_3_lo = 0.03250*count - 1.336, count<501.94
Ch_3_hi = 0.2257*count - 98.33, count>501.94
For NL/NN/NP, the first orbits processed were:
NSS.HRPT.NL.D11039.S1301.E1316.B5352020.WI
NSS.GHRR.NL.D11039.S1114.E1301.B5351920.WI
NSS.HRPT.NN.D11039.S1251.E1306.B2947777.EB
NSS.GHRR.NN.D11039.S1429.E1559.B2947879.GC
NSS.HRPT.NP.D11039.S1334.E1349.B1032424.GC
NSS.GHRR.NP.D11039.S1147.E1334.B1032324.GC
NSS.LHRR.NP.D11039.S1318.E1330.B1032424.GC
For M2, the first orbit processed was the one running after orbit:
NCS.FRAC.M2.D11039.S0915.E1057.B2234344.SV
Contact Person(s) Name/Email/Phone Number for Questions:
Dejiang.Han Dejiang.Han@noaa.gov
Xiangqian Wu Xiangqian.Wu@noaa.gov
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
ppp@nesdis.noaa.gov
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