Administrative, NOAA-16, 17, 18, 19, & MetOp-2/A, AVHRR, Monthly Visible Calibration Update, 10 November 2009 - Issued: 6 November 2009 1400 UTC

*Topic:
*Visible calibration update for month of November 2009

*Date/Time(UTC) Message Issued:*
6 November 2009, 1400 UTC

*Satellite(s) Involved:
*NOAA-16, 17, 18, 19, & 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:*
10 November 2009, Time TBD UTC

*Details/Specifics of Change:

*The following update of the calibration coefficients are recommended for NOAA-16/17/18/19, METOP-A/2
on November 10. These coefficients are intended to be optimal on November 24, in the middle of the
two scheduled updates.

*****************************************************************************************************
NOAA-16 AVHRR

Ch_1_lo = 0.05744*count - 2.215, count<498.96
Ch_1_hi = 0.1677*count - 56.98, count>498.96

Ch_2_lo = 0.06298*count - 2.379, count<500.16
Ch_2_hi = 0.1855*count - 63.68, count>500.16
*****************************************************************************************************
NOAA-17 AVHRR

Ch_1_lo = 0.05672*count - 2.270, count<501.12
Ch_1_hi = 0.1665*count - 57.29, count>501.12

Ch_2_lo = 0.06834*count - 2.683, count<500.73
Ch_2_hi = 0.2034*count - 70.43, count>500.73

Ch_3_lo = 0.03326*count - 1.402, count<501.37
Ch_3_hi = 0.2332*count - 101.81, count>501.37
*******************************************************************************************************
NOAA-18 AVHRR

Ch_1_lo = 0.05400*count - 2.129, count<501.54
Ch_1_hi = 0.1610*count - 55.37, count>501.54

Ch_2_lo = 0.06212*count - 2.447, count<500.40
Ch_2_hi = 0.1864*count - 64.94, count>500.40
*********************************************************************************************************
NOAA-19 AVHRR

Ch_1_lo = 0.05134*count - 1.996, count<496.43
Ch_1_hi = 0.1515*count - 52.06, count>496.43

Ch_2_lo = 0.06033*count - 2.340, count<500.37
Ch_2_hi = 0.17969*count - 62.04, count>500.37
**********************************************************************************************************
Metop-A/2

Ch_1_lo = 0.05377*count - 2.174, count<501.01
Ch_1_hi = 0.1589*count - 54.84, count>501.01

Ch_2_lo = 0.06355*count - 2.526, count<500.42
Ch_2_hi = 0.1888*count - 65.18, count>500.42

Ch_3_lo = 0.03217*count - 1.322, count<501.94
Ch_3_hi = 0.2234*count - 97.33, count>501.94
*************************************************************************************************************

*Contact Person(s) Name/Email/Phone Number for Questions:
*Vince Tabor Vincent.Tabor@noaa.gov 301-817-4552 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