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(meteorobs) FWD: US Dept. of Defense bolide detections


To meteorobs,

Thought this might interest y'all: keep in mind these satellite detections are 
sometimes lost, if visual reports aren't forwarded to DoD within a brief couple 
of days of the event! Also note Peter Brown's moniker on that URL! :)

-Lew

-------------------------------------------------------------
>From "NEO News (6/11/98)"...

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 30 September 1997 at 12:31:18 UT, sensors aboard U.S. Department of
Defense satellites recorded the bright flash of an apparent meteoroid
disintegrating in the atmosphere. Location of the flash was approximately
38.2S, 63.2 E. Peak flash intensity recorded (assuming a 6000K blackbody
(BB) radiation model) was 9.0E9 watts per steradian (W/Sr), corresponding
to a visual magnitude of -18.9. Total radiated energy, using the same 6000K
BB model, was 2.3E10 Joules.

Previously, on 5 September 1997 at 11:41:54 UT, another bright flash was
similarly recorded. Location was approximately 31.2S, 56.3E. Peak recorded
intensity (6000K BB model) was 2.4E10 W/Sr, corresponding to a visual
magnitude of -19.95. Total radiated energy (6000K BB model) was 1.9E11
Joules.

On 1 October 1997 at 14:27:13 UT, sensors aboard U.S. Department of Defense
satellites recorded another bright flash. Location of the flash was
approximately 47.1N, 109.0E. Peak flash intensity recorded (assuming a
6000K blackbody (BB) radiation model) was 1.7E10 watts per steradian,
corresponding to a visual magnitude of -19.6. Total radiated energy, using
the same 6000K BB model, was 6.2E10 Joules.

(If you have questions call MSgt Rene Uzee, Air Force Technical
Applications Center Public Affairs at, (407) 494-4403.)

(Other recent USAF releases report on fireballs detected on 9 October 1997
and 9 December 1997)

PLEASE NOTE: THIS USAF BOLIDE INFORMATION RELEASE AND ALL PREVIOUS RELEASES
CAN BE FOUND ON THE WWW AT
http://phobos.astro.uwodot ca/~pbrown/usaf.html

+++++++++++++++++++++++++++++++++++++++++++

David Morrison, Director of Space
NASA Ames Research Center, MS 200-7
Mountain View CA 94035-1000
Tel 650 604 5094; Fax 650 604 1165
david.morrison@arc.nasadot gov or dmorrison@mail.arc.nasadot gov
website: http://space.arc.nasadot gov
website: http://astrobiology.arc.nasadot gov
website: http://impact.arc.nasadot gov