[meteorite-list] Update on 2011 EH & 2011 EO40 similarity to Chelyabinsk

From: Matson, Robert D. <ROBERT.D.MATSON_at_meteoritecentral.com>
Date: Thu, 1 Aug 2013 13:08:34 -0700
Message-ID: <7C640E28081AEE4B952F008D1E913F1707FB2B5E_at_0461-its-exmb04.us.saic.com>

Rerunning with the latest catalog:

Borovicka target elements (q=0.768, e=0.50, i=3.6, peri=109.7,
node=326.41):

Mod. D Minor Planet a q e i Peri Node
------- ------------ ------- ------- ------- ------ -------- --------
0.01749 2011 EH 1.47945 0.76110 0.48555 2.3498 96.6142 339.1692
0.03870 2003 BR47 1.62812 0.81354 0.50032 4.4207 112.5051 314.5762
0.04415 2000 SM10 1.66237 0.76469 0.54000 0.5486 176.6893 260.6144
0.05003 2005 CJ 1.74990 0.82952 0.52596 1.0837 81.6548 358.0905
0.05134 2010 TG54 1.67147 0.79433 0.52477 5.6658 72.3492 15.8937
0.05379 2011 EO40 1.65383 0.76021 0.54033 3.3638 17.0586 50.3098
0.05772 2005 EQ95 1.66859 0.78608 0.52890 2.3979 252.1268 196.2794
0.05855 2001 TB 1.71936 0.81505 0.52596 3.9656 245.0260 192.2095
0.06247 1998 OX4 1.58053 0.81258 0.48588 4.5134 117.1047 299.7205
0.06308 2004 RN251 1.65407 0.78139 0.52760 4.3903 245.9692 179.5745


Using de la Fuente Marcos estimated Chelyabinsk elements
(q=0.76, e=0.53, i=3.82, peri=109.44, node=326.41):

Mod. D Minor Planet a q e i Peri Node
------- ------------ ------- ------- ------- ------ -------- --------
0.02517 2000 SM10 1.66237 0.76469 0.54000 0.5486 176.6893 260.6144
0.03890 2011 EO40 1.65383 0.76021 0.54033 3.3638 17.0586 50.3098
0.04483 2011 EH 1.47945 0.76110 0.48555 2.3498 96.6142 339.1692
0.04878 2005 CJ 1.74990 0.82952 0.52596 1.0837 81.6548 358.0905
0.04896 2010 TG54 1.67147 0.79433 0.52477 5.6658 72.3492 15.8937
0.05145 2003 BR47 1.62812 0.81354 0.50032 4.4207 112.5051 314.5762
0.05193 1999 NC43 1.75955 0.74036 0.57923 7.1235 120.5648 311.8171
0.05411 2005 EQ95 1.66859 0.78608 0.52890 2.3979 252.1268 196.2794
0.05730 2001 TB 1.71936 0.81505 0.52596 3.9656 245.0260 192.2095
0.05952 2004 RN251 1.65407 0.78139 0.52760 4.3903 245.9692 179.5745

Here, 2011 EO40 has moved up the list to the #2 spot. Clearly the best
asteroid match is going to be fairly sensitive to the choice of orbital
elements for Chelyabinsk.

--Rob
Received on Thu 01 Aug 2013 04:08:34 PM PDT