Topic:
Visible calibration update for month of September 2008
Date/Time(UTC) Message Issued:
3 September 2008, 1240 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 TBD UTC
Details/Specifics of Change:
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