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NOAA-16, 17, 18, & MetOp-2/A, AVHRR, Monthly Visible Calibration Update, 8 July 2008 - Issued: 9 July 2008; 1645 UTC

Topic:

Visible calibration update for month of July 2008

Date/Time(UTC) Message Issued:

9July 2008, 1645 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:

8 July 2008, Time 1816 UTC

Details/Specifics of Change:

On 8 July, the planned AVHRR visible calibration file updates occurred around 1816Z First data to processed were:
NSS.FRAC.M2.D08190.S1651.E1832.B0892223.SV

NSS.HRPT.NN.D08190.S1759.E1813.B1615151.MI
NSS.GHRR.NN.D08190.S1617.E1801.B1615051.WI
NSS.LHRR.NN.D08190.S1747.E1758.B1615050.WI

NSS.HRPT.NM.D08190.S1847.E1859.B3138888.GC
NSS.GHRR.NM.D08190.S1713.E1846.B3138788.GC
NSS.GHRR.NM.D08190.S1524.E1719.B3138687.GC
NSS.LHRR.NM.D08190.S1823.E1832.B3138888.GC

NSS.HRPT.NL.D08190.S1811.E1824.B4018282.GC
NSS.GHRR.NL.D08190.S1623.E1809.B4018182.GC

********** Original Message ***********
The following update of the calibration coefficients are recommended for MetOp-2/A, NOAA-18, 17, and 16 on July 8. These coefficients are intended to be optimal on July 26, in the middle of the two scheduled updates.

Metop-A/2

Ch_1_lo = 0.05289*count - 2.138, count<501.00
Ch_1_hi = 0.1563*count - 53.94, count>501.00

Ch_2_lo = 0.06266*count - 2.491, count<500.00
Ch_2_hi = 0.1861*count - 64.26, count>500.00

Ch_3_lo = 0.03153*count - 1.296, count<502.00
Ch_3_hi = 0.2190*count - 95.40, count>502.00

************************************************
NOAA-18 AVHRR

Ch_1_lo = 0.05331*count - 2.102, count<501.00
Ch_1_hi = 0.1589*count - 54.66, count>501.00

Ch_2_lo = 0.06096*count - 2.402, count<500.00
Ch_2_hi = 0.1829*count - 63.73, count>500.00

*********************************************
NOAA-17 AVHRR

Ch_1_lo = 0.05603*count - 2.242, count<501.12
Ch_1_hi = 0.1645*count - 56.59, count>501.12

Ch_2_lo = 0.06734*count - 2.644, count<500.73
Ch_2_hi = 0.2005*count - 69.41, count>500.73

Ch_3_lo = 0.03269*count - 1.378, count<501.37
Ch_3_hi = 0.2292*count - 100.05, count>501.37

*************************************************
NOAA-16 AVHRR

Ch_1_lo = 0.05643*count - 2.176, count<498.96
Ch_1_hi = 0.1647*count - 55.97, count>498.96

Ch_2_lo = 0.06148*count - 2.322, count<500.16
Ch_2_hi = 0.1811*count - 62.16, 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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