Subject: Administrative: GOES-13 and GOES-15 Visible Calibration This is a multi-part message in MIME format. --------------000604070200010102020804 Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit *Topic: *GOES-13 and GOES-15 Visible Calibration Update for Month of October 2012 * Date/Time**Issued: *October 9, 2012 1405 UTC* * *Product(s) or Data Impacted:***All products from visible channel** * Date/Time of Initial Impact:*October 9, 2012**** 1130 UTC* * *Date/Time of Expected End:*****Until Next Month's Coefficient Update** * Length of Event:*N/A* * *Details/Specifics of Change:* On 9 October 2012, the following update of the calibration coefficients, based on post-launch vicarious calibration at NOAA/NESDIS/STAR, was implemented for the Imager visible channel of GOES-13 and GOES-15 at 1130Z. These coefficients are intended to be optimal on 23 October, two weeks after the implementation date. Satellite: GOES-15 Update Month: October Update Year: 2012 Current post-launch calibration coefficient: 1.26525 Current calibration date: 2012271000000000 Previous post-launch calibration coefficient: 1.25320 Previous calibration ate: 2012242000000000 Initial calibration coefficient: 1.0 Initial calibration date: 2001311000000000 Satellite: GOES-13 Update Month: October Update Year: 2012 Current post-launch calibration coefficient: 1.23992 Current calibration date: 2012271000000000 Previous post-launch calibration coefficient: 1.23667 Previous calibration date: 2012242000000000 Initial calibration coefficient: 1.0 Initial calibration date: 2000229000000000 Some definitions: The date format is: YYYYDDDHHMMSSmmm, where YYYY = year, DDD = day of the year, HH = hour, MM = minute, SS = seconds, mmm = msec. The coefficient provided is a gain that is to be applied to the Visible channel counts-to-radiance conversion Op_R = Coefficient * Pre_R where Pre_R is pre-launch gain for the channel and Op_R is the new gain -- the gain after the coefficient listed as "Current post-launch calibration coefficient" is applied. The initial coefficient has been normalized to 1.0 for the purposes of this post-launch calibration. * Contact Person(s) Name/Email/Phone Number for Questions: *Dejiang.Han Dejiang.Han@noaa.gov __>_ 301-817-4119 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.star.nesdis.noaa.gov/smcd/spb/fwu/homepage/GOES_Imager_Vis_OpCal.php This message was sent to ESPC.Notification@noaa.gov. You have been sent this and other notifications because you have opted in to receive it. If for any reason, you wish to unsubscribe, please contact ESPC Help Desk at ESPCOperations@noaa.gov or (301) 817-3880. Please note: it make take up to two business days to process your unsubscribe request. --------------000604070200010102020804 Content-Type: text/html; charset=ISO-8859-1 Content-Transfer-Encoding: 7bit Topic:  GOES-13 and GOES-15 Visible Calibration Update for Month of October 2012

Date/Time Issued:  October 9, 2012 1405  UTC 

Product(s) or Data Impacted:  All products from visible channel

Date/Time of Initial Impact:  October 9, 2012  1130 UTC
Date/Time of Expected End:  Until Next Month's Coefficient Update

Length of Event:  N/A
Details/Specifics of Change: 

On 9 October 2012, the following update of the calibration coefficients, based on post-launch vicarious calibration at NOAA/NESDIS/STAR, was implemented for the Imager visible channel of GOES-13 and GOES-15 at 1130Z. These coefficients are intended to be optimal on 23 October, two weeks after the implementation date.

Satellite: GOES-15
Update Month: October
Update Year: 2012
Current post-launch calibration coefficient:  1.26525
Current calibration date: 2012271000000000
Previous post-launch calibration coefficient:  1.25320
Previous calibration ate: 2012242000000000
Initial calibration coefficient: 1.0
Initial calibration date: 2001311000000000
Satellite: GOES-13
Update Month: October
Update Year: 2012
Current post-launch calibration coefficient:  1.23992
Current calibration date: 2012271000000000
Previous post-launch calibration coefficient:  1.23667
Previous calibration date: 2012242000000000
Initial calibration coefficient: 1.0
Initial calibration date: 2000229000000000
Some definitions:
The date format is: YYYYDDDHHMMSSmmm, where YYYY = year, DDD = day of the year, HH = hour, MM = minute, SS = seconds, mmm = msec.
The coefficient provided is a gain that is to be applied to the Visible channel counts-to-radiance conversion
Op_R = Coefficient * Pre_R
where Pre_R is pre-launch gain for the channel and Op_R is the new gain -- the gain after the coefficient listed as "Current post-launch calibration coefficient" is applied.
The initial coefficient has been normalized to 1.0 for the purposes of this post-launch calibration.

Contact Person(s) Name/Email/Phone Number for Questions:
Dejiang.Han Dejiang.Han@noaa.gov <mailto:Dejiang.Han@noaa.gov> 301-817-4119 operations support
Xiangqian Wu Xiangqian.Wu@noaa.gov <mailto:Xiangqian.Wu@noaa.gov> 301-763-8136 x 138 instrument scientist

Web site(s) that contain other relevant information (where applicable):
http://www.star.nesdis.noaa.gov/smcd/spb/fwu/homepage/GOES_Imager_Vis_OpCal.php

This message was sent to ESPC.Notification@noaa.gov. You have been sent this and other notifications because you have opted in to receive it. If for any reason, you wish to unsubscribe, please contact ESPC Help Desk at ESPCOperations@noaa.gov or (301) 817-3880. Please note: it make take up to two business days to process your unsubscribe request. --------------000604070200010102020804--