[meteorite-list] First photographed meteorite orbits

Ed Majden epmajden at shaw.ca
Sun Jul 25 14:16:40 EDT 2010


PRIBRAM - Fell April 7, 1959 - first recovered meteorite with a known  
orbit - 19 fragments found, largest 4.3 kg - total 9.5 kg recovered.
			I read somewhere that some fragments were found prior to the  
trajectory and orbital calculations.  Can anyone confirm this with a  
reference?

LOST CITY - First triangulated meteor photographed by the Prairie  
Network in the U.S.A.  Fell 3 Jan 1970 and found 9 Jan 1970.  Total  
wt. 17kg.
		     - I read somewhere that other fragments from this fall have  
since been recovered.  Can anyone confirm this with a reference?

INNISFREE 	-  Fell 5 Feb 1977 - Photographed by the Canadian MORP  
Fireball Network - 11 days later a 2.07 kg sample was found a
                            few hundred meters from the predicted  
computer projection.  8 other fragments have since been found, Total  
mass 3.79 kg.
			

Sadly both the Prairie Network in the U.S.A. and the MORP Network in  
Canada was shut down because of funding issues.  The Sandia Research  
Group has since distributed two different all-sky cameras forming a  
video patrol network across much of North America.  Some others have  
set up their own all-sky patrol cameras.  The first Sandia cameras  
were of the hub-cap or convex mirror type but there was a problem  
reducing start and end points of a fireball with this type of  
system.  They have since replaced most of these units with fisheye  
lens systems which are better.  The first two systems used vcr's for  
recording but this has now been upgraded to video capture of a moving  
object to a computer hard drive.  No more long hours wasted searching  
vcr tapes.

	You can see the current network map and contacts at:  http:// 
allsky.ca/NAdatabase.html

Ed Majden
EMO Station - Courtenay B.C. Canada



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