A big meteor impact probably occurred in Southern Greenland at 61 25N, 44 26W on Tuesday, December 9th approximately 0811 UTC (05:11 am local time). The position is on the ice cap approximately 50 kilometers NE of Narsarsuaq Airport.
Since then, data surveilance equipment has confirmed a bright flash but not an impact. The event may have been further west than originally reported. Running updates on the Greenland meteorite event can be obtained at http://www.astro.ku.dk/~holger/ and at http://www.dcrs.dtu.dk.
USAF NEWS RELEASE From: Headquarters Air Force Technical Applications Center Office of Public Affairs Patrick AFB, Fl., 32925-3002 (407)-494-9915 Date: June 8, 1998 **************************************************************************** On 9 December 1997 at approximately 08:15:55.2 UT, sensors aboard a U.S. Department of Defense satellite recorded the bright flash of an apparent meteoroid disintegrating in the atmosphere over Greenland. The peak radiated intensity recorded on this event was 9.5E10 watts/sr (using a 6000K blackbody model for the radiation). Correspondingly, the total radiated energy of the event was 2.7E11 Joules. (If you have questions call MSgt Rene Uzee, Air Force Technical Applications Center Public Affairs at, (407) 494-4403.) ***************************************************************************** PLEASE NOTE: THIS USAF BOLIDE INFORMATION RELEASE AND ALL PREVIOUS RELEASES CAN BE FOUND ON THE WWW AT http://phobos.astro.uwo.ca/~pbrown/usaf.html ***************************************************************************** Individuals interested in obtaining graphical lightcurve information for this event should send an email with their names, fax numbers and a description of their intended use of this information to peter@danlon.physics.uwo.ca
There was speculation that the cloud was related to the meteor because of its unusually high, crisp appearance.
corresponding coastline map:
The "+" marks the reported impact point at 61.4N, 44.4W. Latitude and longitude lines are sketched at 2 degree intervals, based on the reported GOES earth-navigation. At this time, the navigated map's coastlines fall 3 pixels south and one pixel west of the observed coastlines, within the GOES earth-navigation error tolerances of 4 visible pixels.
Unfortunately, Greenland is too dark in December to provide visible images during the other GOES-8 observation times, such as 1145 and 1745 UTC.
GIF animation
coastline map ("+" marks impact point)
0245 UTC (local midnight)
0545 UTC
0845 UTC (30 minutes after impact)
1145 UTC
1445 UTC (local noon)
1745 UTC
2045 UTC
2345 UTC
A cold, high cloud appears over southeastern Greenland at 0845 UTC, 30 minutes after the reported impact, with faint hints of cloud formation along the center ridge of the southern Greenland ice cap at 0545 UTC.
This cloud formation appears to be part of a normal storm development in the lee of the ice cap.
It does not look like a single ejection cloud, nor a long contrail.
Nevertheless, the time-of-formation is a remarkable coincidence with the reported meteor impact.