Topic:
Visible calibration update for month of January
Date/Time(UTC) Message Issued:
8 January 2008 , 1500UTC
Satellite(s) Involved:
NOAA-16, 17, 18, & MetOp-2/A
Instrument(s) Involved:
AVHRR
Product(s) Involved/Affected:
Channel 1, 2, & 3a Products
Date/Time(UTC) of Initial Implementation:
8 January 2008, Time 1242 UTC
Details/Specifics of Change:
The January AVHRR visible calibration coefficient update was made operational at approximately 1242 UTC, 8 January 2008. For NL/NM/NN, the first orbits processed will be:
NSS.HRPT.NL.D08008.S1337.E1349.B3761010.GC
NSS.GHRR.NL.D08008.S1201.E1336.B3760910.GC
NSS.HRPT.NM.D08008.S1405.E1418.B2879595.WI
NSS.LHRR.NM.D08008.S1336.E1342.B2879595.WI
NSS.GHRR.NM.D08008.S1211.E1405.B2879495.WI
NSS.HRPT.NN.D08008.S1303.E1317.B1358181.GC
NSS.GHRR.NN.D08008.S1113.E1302.B1358081.GC
NSS.LHRR.NN.D08008.S1227.E1239.B1358081.GC
For M2, the first orbit processed will be B0633334, which should be received after this orbit:
NCS.FRAC.M2.D08008.S0935.E1116.B0633233.SV
The following coefficients were made operational:
***************************************************
Metop-A/2
Ch_1_lo = 0.05209*count - 2.106, count<501.00
Ch_1_hi = 0.1539*count - 53.13, count>501.00
Ch_2_lo = 0.06143*count - 2.442, count<500.00
Ch_2_hi = 0.1825*count - 63.01, count>500.00
Ch_3_lo = 0.03110*count - 1.278, count<502.00
Ch_3_hi = 0.2160*count - 94.10, count>502.00
******************************************************
NOAA-18 AVHRR
Ch_1_lo = 0.05325*count - 2.100, count<501.00
Ch_1_hi = 0.1588*count - 54.60, count>501.00
Ch_2_lo = 0.06152*count - 2.424, count<500.00
Ch_2_hi = 0.1846*count - 64.32, count>500.00
******************************************************
NOAA-17 AVHRR
Ch_1_lo = 0.05580*count - 2.233, count<501.12
Ch_1_hi = 0.1638*count - 56.36, count>501.12
Ch_2_lo = 0.06704*count - 2.632, count<500.73
Ch_2_hi = 0.1996*count - 69.09, count>500.73
Ch_3_lo = 0.03245*count - 1.368, count<501.37
Ch_3_hi = 0.2275*count - 99.31, count>501.37
**************************************************
NOAA-16 AVHRR
Ch_1_lo = 0.05606*count - 2.161, count<498.96
Ch_1_hi = 0.1636*count - 55.61, count>498.96
Ch_2_lo = 0.06093*count - 2.302, count<500.16
Ch_2_hi = 0.1795*count - 61.61, count>500.16
**************************************************
These coefficients are intended to be optimal on January 26, in the middle of the two scheduled updates.
Contact Person(s) Name/Email/Phone Number for Questions:
Emily Harrod Emily.Harrod@noaa.gov 301-817-3882 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
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, NSOF, room 1460
* 4231 Suitland Road
* Suitland, Maryland 20746-4304
* USA
* voice 301-817-3882
* fax 301-817-3902
* email Emily.Harrod@noaa.gov
*
*******************************************
-