We are recieving reports about a large fireball seen at 20:30 CDTÂ from AL, TN, KY, MD, OH and AR. Here is a map of the plots from the reports recieved so far.
Based on current reports it looks like the termination point of the event was south east of Louisville, Kentucky.
The event was captured by the NASA Allsky Camera Network. Below is a picture of the fireball, video and more information will follow once the data has been analyzed.
If you witnessed this event, please submit a fireball report and leave a comment below. We will update this post as more information becomes available.
UPDATE APRIL 7th, 2011:
The AMS continues to receive reports on this fireball event. Analysis of these plots suggests a termination point near the border of Kentucky and Tennessee, possibly near Cooksville TN. Below is an updated map of the current witness reports.
Below are videos captured from two of NASA’s cameras:
Bill Cooke and his team at the Meteoroid Environmental Office have plotted the trajectory using three cameras. Their model places the end point of the meteor at 36KM altitude 3-4 KM SSW of Dowelltown TN. Below is a map of the trajectory.
Bill wasÂ optimistic about the chances of a meteorite hitting the ground:
Last night (April 6) at 8:21:57 CDT (9:21:57 EDT), NASA all-sky meteor cameras located at the University of Tennessee Space Institute (in conjunction with the Hands-On Science Center in Tullahoma, Tennessee) and at the Walker County Science Center in northwest Georgia detected a very bright fireball moving north across the state of Tennessee. First detected 52 miles above the Arnold Air Force base near Tullahoma, the meteor was brighter than crescent Moon and was approximately 2 feet in diameter, with a weight of 200 lbs. It was last recorded 30 miles above the town of Woodbury, Tennessee, moving at a speed of approximately 9 miles per second (32,400 mph).
The NASA Meteoroid Environment Office has reasonable confidence that some fraction of this meteor survived to the ground as one or more meteorites. Calculations are underway to determine the general impact location, which may lie close to the Kentucky border. Eyewitnesses to the fireball are encourage to make a report to the American Meteor Society (www.amsmeteors.com) or to the Meteoroid Environment Office.
More information will be forthcoming at the completion of the impact zone calculations, which may take some time. The orbit indicates that this interloper was from the Asteroid Belt, with an aphelion well beyond the orbit of Mars.
Note: A 3rd NASA camera, located at the Tellus Science Center in Cartersville, Georgia, also recorded this event low on the northern horizon. This data is being used to refine the trajectory determination.
Bill also shared a dark flight model estimate.