Administrative: NOAA-18, 19, MetOp-A/2 & MetOp-B/1, AVHRR, Monthly Visible Calibration Update, 12 September 2017 - Issued: September 12, 2017 1438Z

Subject: Administrative: NOAA-18, 19, MetOp-A/2 & MetOp-B/1, AVHRR, Monthly Visible Calibration Update, 12 September 2017 - Issued: September 12, 2017 1438Z

From: ESPCOperations

Date: 9/12/2017 10:38 AM

To: _NESDIS OSDPD ESPC OUTAGE Notification

Topic: Visible calibration update for month of September 2017

Date/Time Issued: September 12, 2017 1438Z

Product(s) or Data Impacted: All products from channels 1, 2, and 3a

Date/Time of Initial Impact: September 12, 2017 1251Z

Date/Time of Expected End: Until Next Month's Coefficient Update

Length of Outage: N/A

Details/Specifics of Change:

On September 12, 2017 at approximately 12:51 UTC, the following update of the calibration coefficients was implemented in the level 1B processing for NOAA-18, NOAA-19, MetOp-A/2 and MetOp-B/1 for the month of September. These coefficients are intended to be optimal on September 26, in the middle of the two scheduled updates.

Metop-B/1

Ch_1_lo = 0.05590*count - 2.202, count<500.62

Ch_1_hi = 0.1656*count - 57.13, count>500.62

Ch_2_lo = 0.06246*count - 2.522, count<503.00

Ch_2_hi = 0.1840*count - 63.66, count>503.00

Ch_3_lo = 0.03222*count - 1.354, count<500.85

Ch_3_hi = 0.2244*count - 97.62, count>500.85

----------------------------------------------------------------

Metop-A/2

Ch_1_lo = 0.05615*count - 2.271, count<501.01

Ch_1_hi = 0.1659*count - 57.27, count>501.01

Ch_2_lo = 0.06951*count - 2.763, count<500.42

Ch_2_hi = 0.2064*count - 71.29, count>500.42

Ch_3_lo = 0.03417*count - 1.404, count<501.94

Ch_3_hi = 0.2373*count - 103.38, count>501.94

----------------------------------------------------------------

NOAA-18 AVHRR

Ch_1_lo = 0.06043*count - 2.383, count<501.54

Ch_1_hi = 0.1802*count - 61.97, count>501.54

Ch_2_lo = 0.07103*count - 2.798, count<500.40

Ch_2_hi = 0.2131*count - 74.26, count>500.40

----------------------------------------------------------------

NOAA-19 AVHRR

Ch_1_lo = 0.05379*count - 2.091, count<496.43

Ch_1_hi = 0.1587*count - 54.54, count>496.43

Ch_2_lo = 0.06243*count - 2.421, count<500.37

Ch_2_hi = 0.1860*count - 64.20, count>500.37

----------------------------------------------------------------

The first 1b files produced with the updated CPIDS were:

NSS.HRPT.NN.D17255.S1338.E1344.B6346060.WI

NSS.GHRR.NN.D17255.S1151.E1338.B6345960.WI

NSS.HRPT.NP.D17255.S1347.E1400.B4430000.GC

NSS.GHRR.NP.D17255.S1200.E1346.B4429900.GC

NSS.LHRR.NP.D17255.S1259.E1305.B4429999.GC

For M2 & M1 the first orbits processed will be the one running after orbit:

NSS.HRPT.M1.D17255.S0934.E0942.B2586868.GC

NSS.FRAC.M1.D17255.S1129.E1221.B2586969.MM

NSS.FRAC.M2.D17255.S0854.E1036.B5655455.SV

NSS.HRPT.M2.D17255.S0506.E0511.B5653333.MO

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 301-683-3601 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

Contact Information for Further Information: ESPC Operations at ESPCOperations@noaa.gov at 301-817-3880