Topic: Visible calibration update for month of June 2026
Date/Time Issued: June 9 2026 1828Z
Product(s) or Data Impacted: All products from channels 1, 2, and 3a
Date/Time of Initial Impact: June 9 2026 12:00Z
Date/Time of Expected End: Until Next Month's Coefficient Update
Length of Outage: N/A
Details/Specifics:
On 9 June 2026 at approximately 12:00 UTC, the following update of the calibration coefficients was implemented in the level 1B processing for MetOp-B/1, and MetOp-C/3 for the month of June. These coefficients are intended to be optimal on June 27, in the middle of the two scheduled updates.
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Metop-B/1
# Ch_1_lo = 0.05819*count - 2.292, count<500.62
# Ch_1_hi = 0.1724*count - 59.47, count>500.62
# Ch_2_lo = 0.06667*count - 2.692, count<503.00
# Ch_2_hi = 0.1964*count - 67.94, count>503.00
# Ch_3_lo = 0.03373*count - 1.417, count<500.85
# Ch_3_hi = 0.2349*count - 102.17, count>500.85
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Metop-C/3
# Ch_1_lo = 0.05633*count - 2.274, count<498.68
# Ch_1_hi = 0.1650*count - 56.49, count>498.68
# Ch_2_lo = 0.06792*count - 2.781, count<500.01
# Ch_2_hi = 0.1990*count - 68.32, count>500.01
# Ch_3_lo = 0.03369*count - 1.367, count<498.72
# Ch_3_hi = 0.2370*count - 102.77, count>498.72
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For M3, M1 the first orbits processed will be the one running after orbit:
NSS.HRPT.M1.D26160.S0916.E0924.B7121515.GC
NSS.GHRR.M1.D26159.S1717.E1813.B7120506.SV
NSS.HRPT.M3.D26160.S0944.E0952.B3937373.GC
NSS.GHRR.M3.D26159.S1659.E1717.B3936363.SV
Contact Person(s) Name/Email/Phone Number for Questions:
Dejiang.Han Dejiang.Han@noaa.gov <mailto:Dejiang.Han@noaa.gov> 301-817-4119 operations support
Xiangqian Wu Xiangqian.Wu@noaa.gov <mailto:Xiangqian.Wu@noaa.gov> 301-683-3601 instrument scientist
Web site(s) that contain other relevant information (where applicable):
https://www.ospo.noaa.gov/operations/messages.html - All user notices
https://www.ospo.noaa.gov/operations/poes/status.html - SOCC polar satellite status
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