Re: [meteorite-list] possible Alabama lunar meteorite fall

2018-11-18 Thread Ruben Garcia via Meteorite-list
Several of us are considering going unfortunately we won't be able to leave until after Thanksgiving. On Nov 18, 2018 12:31 PM, "Matson, Rob D. via Meteorite-list" < meteorite-list@meteoritecentral.com> wrote: Hi Randy, It hadn't been mentioned yet on the Met-List. I worked this fall last

Re: [meteorite-list] possible Alabama lunar meteorite fall

2018-11-18 Thread Anne Black via Meteorite-list
Thank you Bill Thank you Rob. Let's see what happens next. Anne Black IMPACTIKA.com impact...@aol.com -Original Message- From: Matson, Rob D. via Meteorite-list To: Bill Cooke ; Anne Black Cc: meteorite-list@meteoritecentral.com Sent: Sun, Nov 18, 2018 5:12 pm Subject: Re:

Re: [meteorite-list] possible Alabama lunar meteorite fall

2018-11-18 Thread Matson, Rob D. via Meteorite-list
Hi Anne -- Bill beat me to it. Basically you have a small asteroid in an orbit that is dynamically difficult (but not impossible) to achieve without having originated in the earth-Moon system. The aphelion was well inside the orbit of Mars, so the only way it could get from the Main Belt to the

Re: [meteorite-list] possible Alabama lunar meteorite fall

2018-11-18 Thread Bill Cooke via Meteorite-list
I can answer this, as we got enough data from our meteor cameras to compute an orbit. It was very similar to that of Earth (semi major axis of 1 AU, eccentricity < 0.1) with an inclination within 2 standard deviations of that of the Moon. This means we are either dealing with an evolved orbit

Re: [meteorite-list] possible Alabama lunar meteorite fall

2018-11-18 Thread Anne Black via Meteorite-list
Randy, Rob, What makes you think that it could be a Lunar? Yes, I read the article, and it is just mentioned as a "possibility". Your opinions? Anne Black IMPACTIKA.com impact...@aol.com -Original Message- From: Matson, Rob D. via Meteorite-list To:

Re: [meteorite-list] possible Alabama lunar meteorite fall

2018-11-18 Thread Matson, Rob D. via Meteorite-list
Hi Randy, It hadn't been mentioned yet on the Met-List. I worked this fall last week (unaware that Marc Fries had already done so), so the fortunate result of the independent analysis is that two people came up with the same answer and the exact same radar returns. (I also analyzed the

[meteorite-list] possible Alabama lunar meteorite fall

2018-11-18 Thread Korotev, Randy via Meteorite-list
If there has been discussion of this on the List, I missed it https://ares.jsc.nasa.gov/meteorite-falls/ ~+~+~+~+~+~+~+~+~+~+~+~+~+~+~+~+~+~+~+~+~+~+~+~+~+ Randy L. Korotev Research Professor, retired Department of Earth & Planetary Sciences Washington University in Saint Louis

[meteorite-list] Meteorite Picture of the Day

2018-11-18 Thread Paul Swartz via Meteorite-list
Today's Meteorite Picture of the Day: NWA 7678 Contributed by: Dobrova Olga http://www.tucsonmeteorites.com/mpodmain.asp?DD=11/18/2018 __ Visit our Facebook page https://www.facebook.com/meteoritecentral and the Archives at