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Big bolide = 8TA9D69   Message List  
Reply | Forward Message #21070 of 22547 |
Hi folks,

It looks as if Mt. Lemmon has found the first object
(currently on NEOCP) with a near certainty of hitting
the earth. It won't be anything more than a spectacular
meteor (H=30.5), and the orbit isn't solid enough to say
exactly where and when it will hit... too bad; I'm never
looking the right way when a nice meteor appears.
Pseudo-MPEC is at

http://home.gwi.net/~pluto/mpec.htm

Note that the nominal perigee distance is 5866 km.
The Earth's equatorial radius is 6378 km. Impact time
would be a few minutes before the nominal perigee time,
October 7 at 1:53 UT.

I did get a few Monte Carlo orbits that missed the
earth, but about 90% had perigee < earth radius.

It's not of much more than theoretical interest,
since we don't know exactly where or when it will hit.
Still, I thought some note should be taken of it.

-- Bill



Mon Oct 6, 2008 1:54 pm

feliks314159
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Message #21070 of 22547 |
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Hi folks, It looks as if Mt. Lemmon has found the first object (currently on NEOCP) with a near certainty of hitting the earth. It won't be anything more than...
Bill J Gray
feliks314159
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Oct 6, 2008
1:54 pm

... Why do the NEOCP ephems going past Oct. 7, 2 UT remind me of the "sprites" on C64, which left the screen on one side just to come in on the other. I...
Reiner M. Stoss
rms1kpde
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Oct 6, 2008
2:25 pm

Too bad that we (D35) are now affected by a Tropical Depression :-( Or it would be very interesting on helping refining the orbit... ... That's possible ;-) Be...
Quanzhi Ye
tom6740
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Oct 6, 2008
3:12 pm

Folks, (CC to MPC) ... After the NEOCP has been updated, first with astrometry from D90 and later with astrometry from E12 (at Oct. 6.67 UT), this new data is...
Reiner M. Stoss
rms1kpde
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Oct 6, 2008
5:26 pm

Hey Reiner, Fortunately, I captured the missing data too. Using Find_Orb, I've tried a variety of solutions using the topocentric ephemerides and noting the...
Andrew Lowe
lowe4091
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Oct 6, 2008
5:35 pm
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