[Rockhounds] NW Meteor hunters, man your vehicles
DonH
donhalterman at verizon.net
Wed Feb 20 13:18:21 PST 2008
J Bryan Kramer wrote:
> Say there is camera 'a' in one town and camera 'b' in a location 5 miles
> away. If you know the locations of the cameras and what direction they were
> pointing in. (which should be possible to determine by looking at the
> buildings in the background) Then by measuring the angle of the flash on
> both camera images you would get two lines to draw on a map.
Hi,
You're thinking in terms of Cartesian coordinates, but there is a third
coordinate here, the angle of entry (theta). This problem cries out for
a solution using polar coordinates (phi, rho, and theta), and at best
the cameras will only give you two of them. By taking into account the
time stamp of the images, you might be able to get an approximation of
the angle of entry; but given the wide area over which the phenomenon
was seen, it was probably a shallow angle, giving more length to the
vector of travel.
But don't worry, the meteorite crowd are dedicated, one might say
fanatical, and I'm sure they were out looking as soon as the first
reports came in!
Don
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