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A man is a small thing, and the night is very large and full of wonders.
Quote:It will be inside the Earth's shadow cone.
Quote:2012 DA14 was just recovered and orbit improved.
Quote:MPEC 2013-A51 list the revised orbital elements for asteroids including 2012 DA14.
Quote:Using Solex with orbital elements found on a NASA site, I got the same time for the closest approach but get a slightly different distance : 34,101 km. I am wondering if I followed the correct procedure. From the NASA data I created a .SLX file which I read into Solex 11.09 using option 6 Min bodies file and then, after setting adaptive steps, extended precision and order 18 integration, I did a search for a close spatial approach.
Note that Solex defaulted to DE406 and not the more recent DA421.
Your comments would be greatly appreciated.
Takahashi TS-65, FC-50 & EM-10 mount, Borg 100, C8, Various Vixens
Quote:I know North America wont see it during closet approach but how can I figure out where and when I can see 2012 DA14 in North America.
Astronomy educator/Sidewalk astronomer
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Quote:Curt as a fellow Chicagolander do you have any way no acquire an ephemeris for us for this thing?? What evening is it visible near the big dipper???
Orion SkyView Pro 8" Equatorial Reflector Telescope
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Quote:I have a few questions regarding this near "hit" asteroid.
1. Is it just a matter of time that this asteroid missed us? In other words, does the path of this asteroid actually cross the path of where "we were" or where "we are heading" by about 15 minutes? Does Earth actually cross it's path?
2. Which side is the asteroid on..the side we are heading or the side we are leaving?
3. If this asteroid actually does cross Earth's path, has anyone plotted where that path crosses on the face of the planet? For example, if the path of the asteroid were a laser, where would that laser hit the surface as we passed by?
Quote:Whoops, Darren, I just realized you will not have the data in Solex for asteroid 2012 DA14. Aldo had e-mailed that to me. For my location in Arlington Heights, Illinois on 2012 FEB 15, below are the asteroid's coordinates.18:00 CST RA 13:10:35.2 Dec N 74° 13' 52"19:00 CST RA 13:38:25.2 Dec N 78° 04' 24"20:00 CST RA 14:10:01.9 Dec N 80° 44' 11"21:00 CST RA 14:45:39.9 Dec N 82° 37' 17"22:00 CST RA 15:25:02.5 Dec N 83° 57' 20"23:00 CST RA 16:07:02.5 Dec N 84° 52' 58"
Quote:Since I am scheduled to work that night at the space center do you have the coordinates for later that night? 11:30 is about the soonest I can go for it...Thanks
Quote:No need if it's that involved. Thanks
Quote:Thanks Curt. Your diagram and explanation helped me visualize the path of the asteroid. I understand now, it's not as easy as saying...."where would it have hit?"
Quote:How about trying the website I suggested earlier in this tread? All you have to do is input your location. It generates nice maps for you.
Celestron CG-11, Orion 127 Mak, 22 trips to TSP, 5 to Okie-Tex, and thousands of nights under the stars!
Quote:I use Cartes du Ciel with current updates. It predicts the asteroid position rather well.
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