Topic:
Visible calibration update for month of August
Date/Time(UTC) Message Issued:
2 August 2007, 1630 UTC
Satellite(s) Involved:
NOAA-16, 17, 18, & MetOp-2/A
Instrument(s) Involved:
AVHRR
Product(s) Involved/Affected:
All Products
Date/Time(UTC) of Initial Implementation:
14 August 2007, Time TBD UTC
Details/Specifics of Change:
The following update of the calibration coefficients are planned
for the monthly August update:
NOAA-16 AVHRR
Ch_1_lo = 0.05562*count - 2.145, count<498.96
Ch_1_hi = 0.1624*count - 55.18, count>498.96
Ch_2_lo = 0.06043*count - 2.283, count<500.16
Ch_2_hi = 0.1781*count - 61.11, count>500.16
NOAA-17 AVHRR
Ch_1_lo = 0.05565*count - 2.227, count<501.12
Ch_1_hi = 0.1634*count - 56.21, count>501.12
Ch_2_lo = 0.06702*count - 2.631, count<500.73
Ch_2_hi = 0.1995*count - 69.07, count>500.73
Ch_3_lo = 0.03234*count - 1.363, count<501.37
Ch_3_hi = 0.2267*count - 98.97, count>501.37
NOAA-18 AVHRR
Ch_1_lo = 0.05307*count - 2.092, count<501.00
Ch_1_hi = 0.1582*count - 54.41, count>501.00
Ch_2_lo = 0.06141*count - 2.420, count<500.00
Ch_2_hi = 0.1843*count - 64.21, count>500.00
Metop-A/2
Ch_1_lo = 0.05237*count - 2.117, count<501.00
Ch_1_hi = 0.1547*count - 53.41, count>501.00
Ch_2_lo = 0.06059*count - 2.408, count<500.00
Ch_2_hi = 0.17795*count - 62.14, count>500.00
Ch_3_lo = 0.03088*count - 1.269, count<502.00
Ch_3_hi = 0.21446*count - 93.42, count>502.00
These coefficients are intended to be optimal on August
28, in the middle of the two scheduled updates.
Contact Person(s) Name/Email/Phone Number for Questions:
Emily Harrod Emily.Harrod@noaa.gov 301-817-3882 operations support
Fangfang.Yu Fangfang.Yu@noaa.gov 301-763-8042 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
http://www.oso.noaa.gov/goes/index.htm - SOCC geostationary satellite status
http://www.oso.noaa.gov/daily-news/index.asp - SOCC morning reports
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*
* Emily D. Harrod
* NOAA/NESDIS/OSDPD/IPD
* Computer Operations Branch
* Pre-Product Processing Group
* E/SP11, NSOF, room 1460
* 4231 Suitland Road
* Suitland, Maryland 20746-4304
* USA
* voice 301-817-3882
* fax 301-817-3902
* email Emily.Harrod@noaa.gov
*
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