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20-December-2006, 05:36 AM
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Near Earth Asteroid Flyby 2004 XL14 Image
Hi All,
Well we had another rock Flyby, this time it was ~225 Meters in size and passed by at a mere 10 Lunar distances. It was about 15.1 magnitude and was moving rapidly through the constellation of Auriga last night. I captured it with my Homemade .40 meter scope and an SBIG ST9 CCD. The dashed line at center is the 2004 XL14 asteroid moving in this 30 second exposure. I am processing lots of images and will assemble a movie, which I will post to this thread later. finished a quick version of the movie Here is the 1MB movie Link see this 1MB movie http://www.galacticimages.com/videos/NEO2004_XL14.wmv
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Best Regards, John Chumack The Chumack Observatories MPC 838 Dayton Research Station MPC H66 Yellow Springs Research Station www.galacticimages.com Last edited by Galactic2000; 20-December-2006 at 10:15 PM. Reason: added movie link 
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20-December-2006, 12:52 PM
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Great work, John.
Cannot wait to see the movie. Phil
__________________
If at first you fail, you're running average
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20-December-2006, 10:16 PM
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Thanks all,
Okay guys, here is a quick movie of the 2004 XL14 asteroid as promised see this 1MB movie http://www.galacticimages.com/videos/NEO2004_XL14.wmv
__________________
Best Regards, John Chumack The Chumack Observatories MPC 838 Dayton Research Station MPC H66 Yellow Springs Research Station www.galacticimages.com
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20-December-2006, 11:42 PM
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2004 XL14 travel speed
Quote:
your estimate was close, Asteroid 2004 XL14 is moving at 13.51 km/s or 8.44 miles per second, which is roughly about 30,397 mph or 48,636 km/sec It's hoofing it!!!! Can you imagine moving 8 miles in 1 second? All the best, John
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Best Regards, John Chumack The Chumack Observatories MPC 838 Dayton Research Station MPC H66 Yellow Springs Research Station www.galacticimages.com Last edited by Galactic2000; 21-December-2006 at 02:26 AM. Reason: typo
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21-December-2006, 02:20 AM
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Hi John, Thanks for the reply. My figuring was as close as the passing of the object!!! LOL
Funny, I used to try to figure the old math problem in my head....3/5 s of a mile in ten seconds (durring times of influence). I think it was 216 mph or something. Anyway, Thanks again. Best regards, Dan
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21-December-2006, 03:51 AM
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Wow!! Thanks John for posting this great video!
Phil
__________________
If at first you fail, you're running average
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21-December-2006, 08:51 PM
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other moving objects?
The other moving objects are simply hot pixels, they each were checked from frame to frame and are not asteroids, just Cosmic Rays & hot pixels.
When I take a series of image I dither the scopes position between each exposure to eliminate false detections - Cosmic Rays and Hot pixels posing as asteroids. So if you watch closely the other moving objects are only in one or two frames and are not consistent and do not travel in a linear path. The movie is made from raw data only, I did not try to clean it up, I only calibrated the frames for my measurments for the (MPC) Minor Planet Center. I've been measuring asteroids with a CCD for the MPC for 10 years now, but that is one of the first things I learned, its easy to be fooled by Cosmic Rays and Hot pixels. If those counted, I would have discover thousands of new asteroids by now ;-) Glad you noticed these other moving objects, it brings up a good point anyone who images the sky should always check there images thoroughly.....becuase you never know when you'll get lucky. Check out http://www.spaceweather.com today.....Nasa posted my image there as well, plus they give you another photo op for Christmas Eve for another Near Earth asteroid. Good Hunting!!!!
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Best Regards, John Chumack The Chumack Observatories MPC 838 Dayton Research Station MPC H66 Yellow Springs Research Station www.galacticimages.com
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21-December-2006, 09:14 PM
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Quote:
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At night the stars put on a show for free (Carole King) One Earth, One Sky - IYA 2009
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22-December-2006, 10:46 AM
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Hi John great work. I like the math work. This object gives faster a whole new look. Most folks gauge speed by how fast ther car goes. Have a great Christmas.
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24-December-2006, 03:09 AM
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Thanks ALL,
If it clears I'll try to nab the next NEO due xmas eve! ALL the best too ya!, and have a wonderful holiday!
__________________
Best Regards, John Chumack The Chumack Observatories MPC 838 Dayton Research Station MPC H66 Yellow Springs Research Station www.galacticimages.com
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24-December-2006, 05:42 AM
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Great work! Thanks for sharing!
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24-December-2006, 06:59 PM
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