Subject: Administrative: GOES-13 and GOES-15 Imager Visible Calibration This is a multi-part message in MIME format. --------------060809040100060307040500 Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit *Topic: *Visible calibration update for month of September 2012 *Date/Time Issued: *September 11, 2012 1444 UTC *Product(s) or Data Impacted: *All products from visible channel *Date/Time of Initial Impact: *September 11, 2012 0514 UTC *Date/Time of Expected End:*Until Next Month's Coefficient Update *Length of Outage: *N/A * Details and Specifics of Change: * On 11 September 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 0514Z and 0930Z, respectively. These coefficients are intended to be optimal on 25 September,two weeks after the implementation date Satellite: GOES-15 Update Month: September Update Year: 2012 Current post-launch calibration coefficient: 1.25320 Current calibration date: 2012242000000000 Previous post-launch calibration coefficient: 1.23995 Previous calibration ate: 2012219000000000 Initial calibration coefficient: 1.0 Initial calibration date: 2001311000000000 Satellite: GOES-13 Update Month: September Update Year: 2012 Current post-launch calibration coefficient: 1.23667 Current calibration date: 2012242000000000 Previous post-launch calibration coefficient: 1.23275 Previous calibration date: 2012219000000000 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 *Contact Information for Further Information:* ESPC Operations at ESPCOperations@noaa.gov at 301-817-3880 and/or other contacts as necessary This message was sent from 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. --------------060809040100060307040500 Content-Type: text/html; charset=ISO-8859-1 Content-Transfer-Encoding: 7bit Topic:  Visible calibration update for month of September 2012 

Date/Time Issued: September 11, 2012 1444 UTC

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

Date/Time of Initial Impact:   September 11, 2012 0514 UTC

Date/Time of Expected End:  Until Next Month's Coefficient Update

Length of Outage:  N/A

Details and Specifics of Change:  

On 11 September 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 0514Z and 0930Z,
    respectively. These coefficients are intended to be optimal on
    25 September, two weeks after the implementation
    date
 

Satellite: GOES-15

Update Month: September
Update Year: 2012
Current post-launch calibration
    coefficient:  1.25320
Current calibration date:
    2012242000000000
Previous post-launch calibration
    coefficient:  1.23995
Previous calibration ate:
    2012219000000000
Initial calibration coefficient:
    1.0
Initial calibration date:
    2001311000000000


Satellite: GOES-13

Update Month: September
Update Year: 2012
Current post-launch calibration
    coefficient:  1.23667
Current calibration date:
    2012242000000000
Previous post-launch calibration
    coefficient:  1.23275
Previous calibration date:
    2012219000000000
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


Contact Information for Further Information:  ESPC Operations at ESPCOperations@noaa.gov at 301-817-3880 and/or other contacts as necessary

This message was sent from 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.

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