Subject: NOAA 16,17,and 18, AVHRR Instrument, Vis-cal update, Implementation Date TBA- Issued: Date issued 05 December 2005; time issued 1710 UTC
*Topic*:
visible Calibration coefficient updates for AVHRR instrument
*Date/Time(UTC) Message Issued:*
05 December 2005/1710 UTC
*Satellite(s) Involved:*
NOAA-16,17,and18
*Instrument(s) Involved:*
AVHRR
*Product(s) Involved/Affected:*
No products affected at this time
*Date/Time(UTC) of Initial Implementation:*
TBA
*Details/Specifics of Change:*
The following update of the calibration coefficients are recommended for:
NOAA-16 AVHRR
Ch_1_lo = 0.05413*count - 2.087, count<498.96
Ch_1_hi = 0.1580*count - 53.70, count>498.96
Ch_2_lo = 0.05828*count - 2.201, count<500.16
Ch_2_hi = 0.1717*count - 58.93, count>500.16
NOAA-17 AVHRR
Ch_1_lo = 0.05479*count - 2.193, count<501.12
Ch_1_hi = 0.1609*count - 55.34, count>501.12
Ch_2_lo = 0.06617*count - 2.598, count<500.73
Ch_2_hi = 0.1970*count - 68.20, count>500.73
Ch_3_lo = 0.03179*count - 1.340, count<501.37
Ch_3_hi = 0.2229*count - 97.30, count>501.37
NOAA-18 AVHRR
Ch_1_lo = 0.05113*count - 2.017, count<500.54
Ch_1_hi = 0.1525*count - 52.43, count>500.54
Ch_2_lo = 0.05764*count - 2.271, count<500.40
Ch_2_hi = 0.1729*count - 60.26, count>500.40
on December 13. These coefficients are intended to be optimal on December 27, in the middle of the two scheduled updates.
Sorry for the delay.
*Contact Person(s) Name/Email/Phone Number for Questions:*
Xiangqian Wu, Ph. D.
Physical Scientist, NOAA/NESDIS/ORA
E/RA2, Office 7214, 5200 Auth Rd.
Camp Springs, MD 20746-4304
Phone: 301-763-8136 ext. 138
FAX: 301-763-85
Cecil A. Paris
Physical Scientist
301-457-5247 ext 129
cecil.paris@noaa.gov
*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/poesstatus/ - SOCC polar satellites status
http://www.oso.noaa.gov/daily-news/index.htm - SOCC morning reports
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*
* Emily D. Harrod
* NOAA/NESDIS/OSDPD/IPD
* Product Systems Branch
* Pre-Product Processing Group
* E/SP13, Federal Building #4, room 0318
* 5200 Auth Road
* Suitland, Maryland 20746-4304
* USA
* voice 301-457-5247 ext 117
* fax 301-457-5199
* email Emily.Harrod@noaa.gov
*
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,and 18, AVHRR Instrument, Vis-cal update, Implementation Date TBA- Issued: Date issued 05 December 2005; time issued 1710 UTC
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