[meteorite-list] First photographed meteorite orbits

From: Dieter Heinlein <dieter-heinlein_at_meteoritecentral.com>
Date: Sun, 25 Jul 2010 20:07:24 +0100
Message-ID: <1A35D25331F34EC28ED219B9E8753846_at_AMD3500>

Hello Ed and list,

I'd like to add some corrections to the numbers in your last mail:

PRIBRAM - Fell April 7, 1959 - first recovered meteorite with a known
orbit - 4 fragments found, largest 4.250 kg - total 5.555 kg recovered.
The specimen weight were: 4250, 772, 428 and 105 grams respectively.

LOST CITY - First triangulated meteor photographed by the Prairie
Network in the U.S.A. Fell 3 Jan 1970 and found 9 Jan 1970.
4 fragments found, largest 9.830 kg - total 17.322 kg recovered.
The specimen weight were: 9830, 272, 6580 and 640 grams respectively.

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 4.576 kg.

Best regards

Dieter



----- Original Message -----
From: "Ed Majden" <epmajden at shaw.ca>
To: <meteorite-list at meteoritecentral.com>
Sent: Sunday, July 25, 2010 7:16 PM
Subject: [meteorite-list] First photographed meteorite orbits


> 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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Received on Sun 25 Jul 2010 03:07:24 PM PDT