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NOAA-16, and 17 AVHRR Instrument,Vis-cal update, ImplementationDate TBA- Issued: Date issued28 June 2005; time issued 19:40 UTC


Subject: NOAA-16, and 17 AVHRR Instrument,Vis-cal update, ImplementationDate TBA- Issued: Date issued28 June 2005; time issued 19:40 UTC

*Topic*:
Visible calibration coefficient updates for July 2005

*Date/Time(UTC) Message Issued:*
28 June 2005 19:40 UTC

*Satellite(s) Involved:*
NOAA-16, and 17

*Instrument(s) Involved:*
AVHRR

*Product(s) Involved/Affected:*
None at this time. This message is a notification of the changes to take
place in July 2005

*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 = 0.05383*count - 2.076, count<498.96
Ch_1_hi = 0.1571*count - 53.40, count>498.96

Ch_2_lo = 0.05791*count - 2.188, count<500.16
Ch_2_hi = 0.1706*count - 58.56, count>500.16

NOAA-17 AVHRR

Ch_1_lo = 0.05471*count - 2.189, count<501.12
Ch_1_hi = 0.1606*count - 55.26, count>501.12

Ch_2_lo = 0.06627*count - 2.602, count<500.73
Ch_2_hi = 0.1973*count - 68.30, count>500.73

Ch_3_lo = 0.03156*count - 1.330, count<501.37
Ch_3_hi = 0.2212*count - 96.59, count>501.37

on July 12. These coefficients are intended to be optimal on July 26, in
the middle of the two scheduled updates.

*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
*

*Cecil 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

--
*******************************************
*
* 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
*


ppp@nesdis.noaa.gov

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