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NOAA-16, 17, & 18, AVHRR, Visible Calibration Update Complete, 13 June 2006 - Issued: 14 June 2006; 1200 UTC

Topic:
Visible calibration update for the month of June completed

Date/Time(UTC) Message Issued:
14 June 2006, 1200 UTC

Satellite(s) Involved:
NOAA-16, 17, &18

Instrument(s) Involved:
AVHRR

Product(s) Involved/Affected:
NOAA-16 channels 1, 2
NOAA-17 channels 1, 2, 3
NOAA-18 channels 1, 2

Date/Time(UTC) of Initial Implementation:
13 June 2006, Time 1546 UTC

Details/Specifics of Change:
On June 13 around 1546 UTC, the visible calibration parameter update was implemented for the month of June. The first orbits processed after the change are listed below.

NSS.GHRR.NL.D06164.S1449.E1633.B2950809.GC
NSS.HRPT.NL.D06164.S1815.E1826.B2951010.GC

NSS.HRPT.NM.D06164.S1802.E1815.B2062929.MO
NSS.HRPT.NM.D06164.S1935.E1947.B2063030.GC
NSS.GHRR.NM.D06164.S1612.E1807.B2062829.GC

NSS.HRPT.NN.D06164.S1738.E1753.B0548989.WI
NSS.GHRR.NN.D06164.S1427.E1622.B0548788.WI
NSS.LHRR.NN.D06164.S1640.E1648.B0548888.WI

Following are the new values:

NOAA-16 AVHRR
Ch_1_lo = 0.05444*count - 2.099, count<498.96
Ch_1_hi = 0.1589*count - 54.00, count>498.96

Ch_2_lo = 0.05905*count - 2.231, count<500.16
Ch_2_hi = 0.1740*count - 59.71, count>500.16

NOAA-17 AVHRR
Ch_1_lo = 0.05518*count - 2.208, count<501.12
Ch_1_hi = 0.1620*count - 55.73, count>501.12

Ch_2_lo = 0.06649*count - 2.610, count<500.73
Ch_2_hi = 0.1979*count - 68.52, count>500.73

Ch_3_lo = 0.03193*count - 1.346, count<501.37
Ch_3_hi = 0.2239*count - 97.74, count>501.37

NOAA-18 AVHRR
Ch_1_lo = 0.05230*count - 2.062, count<501.00
Ch_1_hi = 0.1559*count - 53.62, count>501.00

Ch_2_lo = 0.06001*count - 2.364, count<500.00
Ch_2_hi = 0.1801*count - 62.74, count>500.00

These coefficients are intended to be optimal on June 27, in the middle of the two scheduled updates.

Contact Person(s) Name/Email/Phone Number for Questions:
Xiangqian Wu Xiangqian Wu@noaa.gov 301-763-8136 ext. 138 - Instrument scientist
Cecil Paris Cecil.Paris@noaa..gov 301-457-5247 ext. 129 - operations support

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
http://www.oso.noaa.gov/goes/index.htm - SOCC geostationary satellite status
http://www.oso.noaa.gov/daily-news/index.asp - SOCC morning reports

--
*******************************************
*
* Emily D. Harrod
* NOAA/NESDIS/OSDPD/IPD
* Computer Operations Branch
* Pre-Product Processing Group
* E/SP11, 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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