(meteorobs) Major fireball event over SouthEast last evening...

[Jay Salsburg]

All I get are time outs on your links to
http://fireballs.ndc.nasa.gov/special/...

-----Original Message-----
From: meteorobs-bounces at meteorobs.org
[mailto:meteorobs-bounces at meteorobs.org] On Behalf Of Bill Cooke
Sent: Wednesday, August 28, 2013 10:44 PM
To: Meteor science and meteor observing
Subject: (meteorobs) Major fireball event over SouthEast last evening...

Last night at approximately 2:27 AM CDT (2013 August 28 07:27:22 UTC), all 6
NASA allsky cameras in the SouthEast picked up a very bright fireball (peak
magnitude ~ -11, 2 magnitudes brighter than the Last Quarter Moon) that MAY
have produced meteorites. The cameras were completely saturated,
necessitating a manual solution. This may very well be the brightest event
our network has observed in 5 years of operation.

Using two stations, we have derived the following crude parameters:

Start location: 84.943 W, 34.969 N at an altitude of 97.4 km Last location:
84.578 W, 35.206 N at an altitude of 37.9 km (this is NOT the lowest point;
other stations show it continuing)
Speed: 23.7 km/s
Peak brightness: -10.9
Mass: ~45 kg (roughly 0.3 to 0.4 meters in diameter)
Radiant: RA - 336 +/- 2 deg, Dec +9.8 +/- 4 deg

We will work to refine the solution tomorrow. 

Composites from cameras stations:
http://fireballs.ndc.nasa.gov/special/20130828_072722/ev_20130828_072723A_02
A.png
http://fireballs.ndc.nasa.gov/special/20130828_072722/ev_20130828_072722B_03
A.png
http://fireballs.ndc.nasa.gov/special/20130828_072722/ev_20130828_072722B_04
A.png
http://fireballs.ndc.nasa.gov/special/20130828_072722/ev_20130828_072724A_07
A.png

Videos (Windows Media Format):
http://fireballs.ndc.nasa.gov/special/20130828_072722/ev_20130828_072724B_02
A.wmv
http://fireballs.ndc.nasa.gov/special/20130828_072722/ev_20130828_072722B_03
A.wmv
http://fireballs.ndc.nasa.gov/special/20130828_072722/ev_20130828_072722B_04
A.wmv
http://fireballs.ndc.nasa.gov/special/20130828_072722/ev_20130828_072724A_07
A.wmv

Light curve from Huntsville camera:
http://fireballs.ndc.nasa.gov/special/20130828_072722/ev_20130828_072722_hsv
_lc.png

Approximate ground track:
http://fireballs.ndc.nasa.gov/special/20130828_072722/path.png

Regards,
Bill Cooke
NASA Meteoroid Environment Office


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