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NOAA-16, 17, 18, & MetOp-2/A, AVHRR, Monthly Visible Calibration Update, 9 September 2008 - Issued: 9 September 2008; 1840 UTC

Topic:
Visible calibration update for month of September 2008

Date/Time(UTC) Message Issued:
9 September 2008, 1840 UTC

Satellite(s) Involved:
NOAA-16, 17, 18, & 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:
9 September2008, Time 1642 UTC

Details/Specifics of Change:
The AVHRR visible calibration coefficients updates for the month of September 2008 were placed into operations around 1642 UTC today, 9 September 2008.
For NL/NM/NN, the first orbits processed will be:

NSS.GHRR.NL.D08253.S1244.E1439.B4106869.GC
NSS.HRPT.NL.D08253.S1800.E1813.B4107171.CF

NSS.HRPT.NM.D08253.S1753.E1807.B3228484.MO
NSS.GHRR.NM.D08253.S1753.E1925.B3228485.GC
NSS.LHRR.NM.D08253.S1903.E1912.B3228585.GC

NSS.HRPT.NN.D08253.S1402.E1416.B1703737.GC
NSS.GHRR.NN.D08253.S1214.E1401.B1703637.GC
NSS.LHRR.NN.D08253.S1650.E1702.B1703839.WI

For M2, the first orbit processed will be the one running after orbit:
NCS.FRAC.M2.D08253.S1327.E1508.B0981516.SV

********* Original Message **********
The following update of the calibration coefficients for MetOp-A/NOAA-18/17/16 are recommended for the September 9 update. These coefficients are intended to be optimal on September 26, in the middle of the two scheduled updates.

Metop-A/2:

Ch_1_lo = 0.05304*count - 2.145, count<501.00
Ch_1_hi = 0.1567*count - 54.09, count>501.00

Ch_2_lo = 0.06290*count - 2.500, count<500.00
Ch_2_hi = 0.1868*count - 64.51, count>500.00

Ch_3_lo = 0.03164*count - 1.300, count<502.00
Ch_3_hi = 0.2198*count - 95.74, count>502.00

--------------------------------------------------------------

NOAA-18 AVHRR

Ch_1_lo = 0.05339*count - 2.105, count<501.00
Ch_1_hi = 0.1592*count - 54.74, count>501.00

Ch_2_lo = 0.06110*count - 2.407, count<500.00
Ch_2_hi = 0.1833*count - 63.88, count>500.00

------------------------------------------------------------------

NOAA-17 AVHRR

Ch_1_lo = 0.05613*count - 2.246, count<501.12
Ch_1_hi = 0.1648*count - 56.69, count>501.12

Ch_2_lo = 0.06748*count - 2.649, count<500.73
Ch_2_hi = 0.2008*count - 69.54, count>500.73

Ch_3_lo = 0.03278*count - 1.382, count<501.37
Ch_3_hi = 0.2298*count - 100.32, count>501.37

-------------------------------------------------------------------

NOAA-16 AVHRR

Ch_1_lo = 0.05656*count - 2.181, count<498.96
Ch_1_hi = 0.1651*count - 56.10, count>498.96

Ch_2_lo = 0.06166*count - 2.329, count<500.16
Ch_2_hi = 0.1817*count - 62.35, count>500.16

Contact Person(s) Name/Email/Phone Number for Questions:
Emily Harrod Emily.Harrod@noaa.gov 301-817-3882 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


ppp@nesdis.noaa.gov

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