[meteorite-list] Bolide to enter over northern Sudan in less than 8 hours
bernd.pauli at paulinet.de
bernd.pauli at paulinet.de
Mon Oct 6 15:56:40 EDT 2008
Hi Rob, Sterling and List,
Rob wrote:
"I calculate the size to be at least 3 meters, possibly as much as 4.5
meters, so I'd be quite surprised if no meteorites were produced."
1) The St. Robert H5 chondrite had a preatmospheric radius between 40 and
ca. 60 cm and a mass of 1000 to ca. 3000 kg comparable to the Knyahinya
L chondrite.
2) The Torino H6 chondrite had a preatmospheric radius of 20 cm, corresponding to
a mass of 120 kg. A number of stones totalling about 1 kg in weight were recovered.
3) Peekskill had a preatmospheric radius of ~50 cm.
4) For Jilin, Klein et al. obtained these lower and upper limits for the preatmospheric
size of the body: lower limit => 54 cm / upper limit => 135 cm. Heusser and Pellas
estimated that its pre-atmospheric radius was 85 cm.
References:
HERZOG G.F. et al. (1997) Preatmospheric size of the St. Robert (H5) chondrite
(Meteoritics 32-4, 1997, A059).
BHANDARI N. et al. (1989) The Torino, H6, meteorite shower
(Meteoritics 24-1, 1989, 29-34).
TH. GRAF et al. (1994) Size and exposure history of the Peekskill meteoroid
(Meteoritics 29-4, 1994, A469).
KLEIN J. et al. (1991) 41Ca in the Jilin (H5) chondrite: A matter of size
(abs. Meteoritics 26-4, 1991, 358).
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