Update #1: The end date has been extended until December 31, 2018 at 2359 UTC.
Topic: GOES-16 and GOES-17 GLM Laser Beacon Test
Date/Time Issued: November 26, 2018 1810 UTC
Product(s) or Data Impacted: GOES-16 and GOES-17 ABI Data
Date/Time of Initial Impact: November 26, 2018 1700 UTC
Date/Time of Expected End: December 3, 2018 2359 UTC
Length of Event: Intermittent, see details below
Details/Specifics of Change: During this test period, GLM lightning signals may be seen at or near the laser beacon sites near Greenbelt, MD (ground coordinates of 39d 01' 14" N 76d 49' 40" W; about 10 miles northeast of Washington, DC) and Monument Peak, CA (ground coordinates of 32d 53' 30" N 116d 25' 22" W; about 50 miles east of San Diego, CA).
During the test period, GLM signals may appear as short (5-10 minute) illuminations alternating between GOES-16 and GOES-17. This will be attempted periodically over the specified time frame until the test results are satisfied. The test is weather-dependent at both sites and there will be no testing during holidays and weekends.
Contact Information for Further Information: ESPC Operations at ESPCOperations@noaa.gov or 301-817-3880
Web Site(s) for applicable information:
See https://www.ospo.noaa.gov/Operations/messages.html for this and other satellite related messages.
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