2015 09 11 : 02 27 18UT

[BillW]

Hi,
Caught a bright meteor spectra with a 910 camera and a 12mm lens with an 830 grooves/mm grating.
The image shows the VERY bright sodium line of the spectrum and a much fainter magnesium line with nothing else detectable until the terminal flare.
During the flare a series of iron lines flash into view.



The meteor itself was outside the fov to the right of my shot but fortunately both William (left hand image)and Glyn (right hand image) caught the meteor on their systems.



So we now have another multi station catch with both orbit and spectrum.

[BillW]

The ground track and orbit (thanks to William for doing the number crunching) ...



Finally the flux corrected spectrum.



Hopefully there will be other stations that have captured this event to refine the orbit but this is another great result!

cheers,
Bill.

[BillW]

Dave A got it as well, so this one is shaping up even better...!



Looks like the "terminal" flare wasn't quite so terminal. (I wonder if there is some definition of this...?)

The meteor lasted quite a time after the flare before finally fading out. Interetsing to consider the forces at work to cause the flare and still have sufficient surviving meteoroid to last that interval.

Cheers,
Bill.

[BillW]

William has been busy processing the extra data from Dave.

Here's the refined orbit and ground track.



Cheers,
Bill.