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NOUS72 KNES 091548
ADMNES
*SUBJECT: ADMINISTRATIVE: GOES-13 AND GOES-15 IMAGER VISIBLE CALIBRATION UPDATE
 FOR MONTH OF FEBRUARY 2016
*TOPIC: *GOES-13 AND -15 VISIBLE CALIBRATION UPDATE FOR THE MONTH OF
FEBRUARY 2016

*DATE/TIME ISSUED: *FEBRUARY 9, 2016 1547Z

*PRODUCT(S) OR DATA IMPACTED: *ALL PRODUCTS FROM VISIBLE CHANNEL


*DATE/TIME OF INITIAL IMPACT: *FEBRUARY 9, 2016 0514Z

*DATE/TIME OF EXPECTED END:* UNTIL NEXT MONTH`S COEFFICIENT UPDATE


*LENGTH OF OUTAGE: *N/A *

DETAILS AND SPECIFICS OF CHANGE: *ON 9 FEBRUARY 2016, 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 23 FEBRUARY, TWO WEEKS AFTER
THE IMPLEMENTATION DATE.

*GOES-15:*

THE FOLLOWING UPDATE OF THE CALIBRATION COEFFICIENTS BASED ON
POST-LAUNCH VICARIOUS CALIBRATION AT NOAA/NESDIS/STAR, ARE RECOMMENDED
FOR THE CURRENTLY OPERATIONAL GOES IMAGER VISIBLE CHANNEL. THESE
COEFFICIENTS ARE TO BE IMPLEMENTED ON THE SECOND TUESDAY OF THE UPDATE
MONTH LISTED BELOW AND OPTIMAL ON THE FOURTH TUESDAY OF THE UPDATE MONTH
(IN THE MIDDLE OF THE TWO SCHEDULED UPDATES).

SATELLITE: GOES-15

UPDATE MONTH: FEBRUARY

UPDATE YEAR: 2016

CURRENT POST-LAUNCH CALIBRATION COEFFICIENT: 1.42326

DATE: 2016026000000000

PREVIOUS POST-LAUNCH CALIBRATION COEFFICIENT: 1.41897

DATE: 2015363000000000

INITIAL CALIBRATION COEFFICIENT: 1.0

INITIAL CALIBRATION DATE: 2001269000000000

*GOES-13:*

THE FOLLOWING UPDATE OF THE CALIBRATION COEFFICIENTS BASED ON
POST-LAUNCH VICARIOUS CALIBRATION AT NOAA/NESDIS/STAR, ARE RECOMMENDED
FOR THE CURRENTLY OPERATIONAL GOES IMAGER VISIBLE CHANNEL. THESE
COEFFICIENTS ARE TO BE IMPLEMENTED ON THE SECOND TUESDAY OF THE UPDATE
MONTH LISTED BELOW AND OPTIMAL ON THE FOURTH TUESDAY OF THE UPDATE MONTH
(IN THE MIDDLE OF THE TWO SCHEDULED UPDATES).

SATELLITE: GOES-13

UPDATE MONTH: FEBRUARY

UPDATE YEAR: 2016

CURRENT POST-LAUNCH CALIBRATION COEFFICIENT: 1.34998

DATE: 2016026000000000

PREVIOUS POST-LAUNCH CALIBRATION COEFFICIENT: 1.34692

DATE: 2015363000000000

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:
*MERRISA GRIFFIN, MERRISA.GRIFFIN@NOAA.GOV
, DESK PHONE 301-817-4671
 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



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