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30981

Re: NEO Search With CubeSats

On Mon, March 30, 2015 6:12 pm, 'Owen, William M (392L)' ... In radio astronomy this sort of scanning is routinely done. Pulsars, for example, are subject to
Marshall Eubanks
9:33 PM
#30981
 
30980

Re: NEO Search With CubeSats

Also, see have a look at this abstract for prior art: http://adsabs.harvard.edu/abs/2008LPICo1405.8388S ‚Äč Also known as velocity-matched filtering (a term
Scott Stuart
7:09 PM
#30980
 
30979

Re: Stack-n-track NEO detection algorithms

... Meanwhile, trailing is an issue for NEO follow-up. Reaching magnitude 24 involves long exposures, and those asteroids tend to move a fair bit during those
Dave Tholen
6:28 PM
#30979
 
30978

Re: Stack-n-track NEO detection algorithms

About 20 years ago, the Italians (Milani, Valsecchi, etc.) developed an algorithm that was nlog(n) for 2-D shift and add up to n resolution elements. They
Alan Harris
6:20 PM
#30978
 
30977

Stack-n-track NEO detection algorithms

Hi All, For anyone interested in multiple-hypothesis moving target detection, I would recommend learning about radon transforms. This type of problem (moving
Matson, Rob D.
6:11 PM
#30977
 
30976

Re: NEO Search With CubeSats

... I tried to talk Harbert in 2004 (and earlier) to implement what is now called "synthetic stacking" into Astrometrica. It wouldn't have been a lot of work,
Reiner M. Stoss
5:19 PM
#30976
 
30975

Re: NEO Search With CubeSats

Hi Mikael, Bill, Reiner, Thank you. It sounds as if the "new" part of this is the use of GPUs to reduce the computational effort required, and the use of a
Bill Gray
5:04 PM
#30975
 
30974

Re: NEO Search With CubeSats

What is the best set of possible motion vectors to try? I could imagine a theoretical method that predicts likely motion vectors based on region of sky and
Andy Puckett
3:44 PM
#30974
 
30973

Re: NEO Search With CubeSats

... Yes, it is. And it is just a new fancy term for an old method. Several people on this list did that already 20 years ago. From manual "synthetic tracking"
Reiner M. Stoss
3:24 PM
#30973
 
30972

Re: NEO Search With CubeSats

I didn't know it was called synthetic tracking, but I very much want to try this with ground-based imaging. It would be most efficient if a computer did
Andy Puckett
3:17 PM
#30972
 
30971

Re: NEO Search With CubeSats

Yes, what you have described is an accurate description. I have known Mike Shao, the lead author, for some time. "Synthetic tracking" is indeed just "stack
Owen, William M (392L)
3:12 PM
#30971
 
30970

NASA Announces New Partnerships with U.S. Industry for Key Deep-Spac

March 30, 2015 NASA Announces New Partnerships with U.S. Industry for Key Deep-Space Capabilities Building on the success of NASA's partnerships with
Ron Baalke
3:01 PM
#30970
 
30969

Re: NEO Search With CubeSats

Shao, M., Nemati, B., Zhai, C., Turyshev, S. G., Sandhu, J., Hallinan, G., and Harding, L. K. (2014) Finding Very Small Near-Earth Asteroids using Synthetic
Mikael Granvik
2:57 PM
#30969
 
30968

Re: NEO Search With CubeSats

I just was chatting with Gerald about this article via private e-mail, and came up with a question that I probably should have asked on-list. We were
Bill Gray
2:44 PM
#30968
 
30967

NEO Search With CubeSats

Proposal to use a constellation of cubesats in solar orbit to find 90% of PHOs: http://arxiv.org/pdf/1503.07944.pdf Gerald
Gerald McKeegan
10:10 AM
#30967
 
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