Administrative, NOAA-16, 18, 19, & MetOp-2/A, AVHRR, Monthly Visible Calibration Update, 8 February 2011 - Issued: 8 February 2011 1415 UTC

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 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