Topic:
Visible calibration update for month of March 2009
Date/Time(UTC) Message Issued:
23 March 2009, 1900 UTC
Satellite(s) Involved:
NOAA-16, 17, 18, & MetOp-2/A
Instrument(s) Involved:
AVHRR
Product(s) Involved/Affected:
All Products from channels 1, 2, and 3a.
Date/Time(UTC) of Initial Implementation:
10 March 2009, Time 1200 UTC
Details/Specifics of Change:
On 10 March 2009, the AVHRR visible calibration coefficients for the month of March were implemented around 1200 UTC. For NL/NM/NN, the first orbits processed will be:
NSS.HRPT.NL.D09069.S1200.E1214.B4363737.WI
NSS.HRPT.NL.D09069.S1204.E1217.B4363737.MI
NSS.GHRR.NL.D09069.S1013.E1200.B4363637.WI
NSS.HRPT.NM.D09069.S1138.E1153.B3487070.CF
NSS.GHRR.NM.D09069.S1212.E1404.B3487172.WI
NSS.LHRR.NM.D09069.S1336.E1342.B3487272.WI
NSS.HRPT.NN.D09069.S1222.E1237.B1960303.GC
NSS.GHRR.NN.D09069.S1032.E1221.B1960203.GC
NSS.LHRR.NN.D09069.S1205.E1217.B1960303.GC
For M2, the first orbit processed will be the one running after orbit:
NCS.FRAC.M2.D09069.S0901.E1043.B1239899.SV
******************** Original Message *********************
The following update of the calibration coefficients are recommended for Metop-A/2, NOAA-18/17/16 on March 10. These coefficients are intended to be optimal on March 28, in the middle of the two scheduled updates.
Metop-A/2
Ch_1_lo = 0.05332*count - 2.156, count<501.01
Ch_1_hi = 0.1576*count - 54.38, count>501.01
Ch_2_lo = 0.06329*count - 2.516, count<500.42
Ch_2_hi = 0.1880*count - 64.91, count>500.42
Ch_3_lo = 0.03193*count - 1.312, count<501.94
Ch_3_hi = 0.2218*count - 96.61, count>501.94
***********************************************************
NOAA-18 AVHRR
Ch_1_lo = 0.05359*count - 2.113, count<501.54
Ch_1_hi = 0.1598*count - 54.95, count>501.54
Ch_2_lo = 0.06150*count - 2.423, count<500.40
Ch_2_hi = 0.1845*count - 64.30, count>500.40
************************************************************
NOAA-17 AVHRR
Ch_1_lo = 0.05630*count - 2.253, count<501.12
Ch_1_hi = 0.1653*count - 56.87, count>501.12
Ch_2_lo = 0.06776*count - 2.660, count<500.73
Ch_2_hi = 0.2017*count - 69.83, count>500.73
Ch_3_lo = 0.03294*count - 1.388, count<501.37
Ch_3_hi = 0.2309*count - 100.80, count>501.37
**************************************************************
NOAA-16 AVHRR
Ch_1_lo = 0.05694*count - 2.195, count<498.96
Ch_1_hi = 0.1662*count - 56.48, count>498.96
Ch_2_lo = 0.06222*count - 2.350, count<500.16
Ch_2_hi = 0.1833*count - 62.92, count>500.16
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