Topic:
Visible calibration update for month of November 2008
Date/Time(UTC) Message Issued:
30 October 2008, 2030 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:
12 November 2008, Time TBD UTC
Details/Specifics of Change:
Please note that due to the holiday on November 11, the November monthly AVHRR visible calibration update will occur on November 12, 2008. The following update of the calibration coefficients for MetOp-2/A, NOAA-18, 17, &16 are recommended for November 12. These coefficients are intended to be optimal on November 25, 2008, in the middle of the two scheduled updates.
Metop-A/2
Ch_1_lo = 0.05297*count - 2.142, count<501.00
Ch_1_hi = 0.1565*count - 54.02, count>501.00
Ch_2_lo = 0.06283*count - 2.497, count<500.00
Ch_2_hi = 0.1866*count - 64.43, count>500.00
Ch_3_lo = 0.03161*count - 1.299, count<502.00
Ch_3_hi = 0.2196*count - 95.65, count>502.00
-----------------------------------------------------
NOAA-18 AVHRR
Ch_1_lo = 0.05344*count - 2.107, count<501.00
Ch_1_hi = 0.1593*count - 54.80, count>501.00
Ch_2_lo = 0.06140*count - 2.419, count<500.00
Ch_2_hi = 0.1842*count - 64.19, count>500.00
-----------------------------------------------------
NOAA-17 AVHRR
Ch_1_lo = 0.05615*count - 2.247, count<501.12
Ch_1_hi = 0.1649*count - 56.71, count>501.12
Ch_2_lo = 0.06756*count - 2.652, count<500.73
Ch_2_hi = 0.2011*count - 69.62, count>500.73
Ch_3_lo = 0.03280*count - 1.383, count<501.37
Ch_3_hi = 0.2299*count - 100.37, count>501.37
---------------------------------------------------
NOAA-16 AVHRR
Ch_1_lo = 0.05668*count - 2.185, count<498.96
Ch_1_hi = 0.1654*count - 56.22, count>498.96
Ch_2_lo = 0.06185*count - 2.336, count<500.16
Ch_2_hi = 0.1822*count - 62.54, 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
NOAA-16, 17, 18, & MetOp-2/A, AVHRR, Monthly Visible Calibration Update, 12 November 2008 - Issued: 30 October 2008 2030 UTC.eml
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