Administrative, NOAA-16, 17, 18, 19, & MetOp-2/A, AVHRR, Monthly Visible Calibration Update, 13 April 2010 - Issued: 13 April 2010 1830 UTC

Topic:
Visible calibration update for month of April 2010

Date/Time(UTC) Message Issued:
13 April 2010, 1830 UTC

Satellite(s) Involved:
NOAA-16, 17, 18, 19, & 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:
13 April 2010, Time 1300 UTC

Details/Specifics of Change:
On 13 April 2010 at approximately 1300 UTC, the following update of the calibration coefficients was implemented in the level 1B processing for NOAA-16/17/18/19 and METOP-A/2 for the month of April. These coefficients are intended to be optimal on 27 April, in the middle of the two scheduled updates.

NOAA-16 AVHRR

Ch_1_lo = 0.05777*count - 2.227, count<498.96
Ch_1_hi = 0.1686*count - 57.31, count>498.96

Ch_2_lo = 0.06347*count - 2.397, count<500.16
Ch_2_hi = 0.1870*count - 64.18, count>500.16

NOAA-17 AVHRR

Ch_1_lo = 0.05696*count - 2.280, count<501.12
Ch_1_hi = 0.1672*count - 57.53, count>501.12

Ch_2_lo = 0.06858*count - 2.693, count<500.73
Ch_2_hi = 0.2041*count - 70.68, count>500.73

Ch_3_lo = 0.03347*count - 1.411, count<501.37
Ch_3_hi = 0.2346*count - 102.43, count>501.37

NOAA-18 AVHRR

Ch_1_lo = 0.05424*count - 2.138, count<501.54
Ch_1_hi = 0.1617*count - 55.61, count>501.54

Ch_2_lo = 0.06236*count - 2.457, count<500.40
Ch_2_hi = 0.1871*count - 65.20, count>500.40

NOAA-19 AVHRR

Ch_1_lo = 0.05044*count - 1.961, count<496.43
Ch_1_hi = 0.1488*count - 51.15, count>496.43

Ch_2_lo = 0.05166*count - 2.003, count<500.37
Ch_2_hi = 0.15387*count - 53.12, count>500.37

Metop-A/2

Ch_1_lo = 0.05400*count - 2.183, count<501.01
Ch_1_hi = 0.1596*count - 55.08, count>501.01

Ch_2_lo = 0.06375*count - 2.534, count<500.42
Ch_2_hi = 0.1893*count - 65.38, count>500.42

Ch_3_lo = 0.03233*count - 1.329, count<501.94
Ch_3_hi = 0.2246*count - 97.81, count>501.94

For NL/NM/NN/NP, the first orbits processed were:

NSS.GHRR.NL.D10103.S1020.E1210.B4926970.WI
NSS.HRPT.NL.D10103.S1710.E1724.B4927373.GC

NSS.HRPT.NM.D10103.S1414.E1427.B4055151.WI
NSS.GHRR.NM.D10103.S1224.E1413.B4055051.WI

NSS.HRPT.NN.D10103.S1243.E1258.B2523131.EB
NSS.GHRR.NN.D10103.S1421.E1551.B2523233.GC

NSS.LHRR.NP.D10103.S1105.E1111.B0607777.GC
NSS.HRPT.NP.D10103.S1334.E1348.B0607979.GC
NSS.GHRR.NP.D10103.S1147.E1333.B0607879.GC

For M2, the first orbit processed was the one running after orbit:

NCS.FRAC.M2.D10103.S0804.E0946.B1806667.SV

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.osdpd.noaa.gov/PSB/PPP/PPP.html - History of level 1B notices
http://www.ssd.noaa.gov/PS/SATS/messages.html - All user notices