http://www.nasa.gov NASA STATEMENT ON LOSS OF COMMUNICATIONS WITH COLUMBIA February 1, 2003 A Space Shuttle contingency has been declared in Mission Control,...
This concept was introduced by Pierre Simon de Laplace. I don't know the exact definition, but more or less is a sphere around a planet of such a radius that...
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Charles W. Juels
cwjuels@...
Feb 1, 2003 5:47 pm
Congratulations to J. Young at Table Mountain Observatory (673) for the discovery of Apollo 2003 BV35. a,e,i = 1.73, 0.59, 31 ...
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David A. Cornell
dcorn@...
Feb 1, 2003 9:22 pm
Without further clarification, the "sphere of influence" described by Juan Lacruz is subject to question. On the face of it, the ability of a large mass to...
The 2/5-power rule for a "sphere of influence" is the point at which switching from planetocentric elements to heliocentric ones makes sense; i.e., within...
The case for light curves of minor planets has been made (http://www.bitnik.com/mp/archive/Why_do_Asteroid_Lightcurves.html), but is there a case for doing...
After exhaustive search for a suitable site to hold MPAPW 2003, we have settled on the Holiday Inn Midtown in Phoenix, Arizona for June 13-15 2003. Phoenix...
... Be aware that I will be monitoring this thread carefully! ;^) We are planning a session at the MPAPW 2003 on this very topic. Jim Roe 732 Oaxaca...
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Ron Baalke
baalke@...
Feb 3, 2003 5:05 pm
http://www.nasa.gov/columbia/COL_upload.html Instructions for Uploading Digital Evidence to NASA For anyone who has recorded video or taken photos that they...
Does anyone know what is the latest on the LSST and Pan-STARRS proposals I haven't seen anything since last fall. Are any of these super systems getting closer...
... Pan-STARRS is funded and progressing. They are aiming for "first light" in a few years. I'd give it five. LSST is in study. Their target date is more...
Hi Alan Harris and mpml! Harris wrote: " The pros may have a lot of glass, but they don't have it for long and can't effectively do light curves, certainly not...
Greg, Yes, Alan Harris has made a very good case for lightcurve work by amateurs in his "Why do Asteroid Lightcurves" article. On your question re. BVRI...
... Among the pro community of asteroid photometrists, the "gold standard" of photometric reference stars has been the Landolt equatorial fields. The internal...
Alan, The project I propose will also include V and possibly I-band. Two of the passbands (probably Hp and V) will be simultaneous observations using two ...
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Brian Skiff
brian.skiff@...
Feb 4, 2003 1:38 am
Unfortunately the Hipparcos photometry is _precise_, but only for stars brighter than about mag. 7, and is also unfortunately not _accurate_. I would be use it...
A number of you know that I am the Acting Assistant Coordinator of NEOs for ALPO. I'm in the early stages of tying together some loose threads and am writing...
Brian, Many thanks for your info re. Hipparcos. Over the past year, I have been investigating the correlations between Hipparcos, Tycho-1, Tycho-2 and the...
ASTRONOMERS GET ULTRASHARP IMAGES WITH LARGE TELESCOPE IN ARIZONA From Lori Stiles, UA News Services, 520-621-1877 February 4, 2003 Astronomers have...
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Edwin Sheridan
mened@...
Feb 4, 2003 8:59 pm
Where can I find the predicted and actual track of the Columbia's final orbit? Ed...
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Ron Baalke
baalke@...
Feb 4, 2003 9:37 pm
http://www.noao.edu/outreach/press/pr03/pr0303.html National Optical Astronomy Observatory FOR IMMEDIATE RELEASE: February 4, 2003 RELEASE NO: NOAO 03-03 NASA...
Richard, I am interested; please keep me informed. Thanks, John code 446 -- John V. McClusky, Ph.D. Associate Professor of Chemistry Texas Lutheran University ...
Hi folks, I'm pondering adding a Monte Carlo routine to my orbit determination code, for uncertainty determination. If I understand it properly, this is a...
Bill, The procedure you outline is certainly feasible, though potentially time-consuming. For the sake of completeness, I'll note two other options of which...
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David Tholen
tholen@...
Feb 5, 2003 3:48 am
... Depends on what you're trying to accomplish. This approach won't necessarily help you out with double solutions. You might just wind up with a fuzzified...
Jim, David, thanks for your comments... Jim, I do compute a covariance matrix (in the state vector) as a byproduct of the "usual" orbit determination...
From - The Final Report of the NASA Workshop on Scientific Requirements for Mitigation of Hazardous Comets and Asteroids, held in Arlington, VA, from September...
Hello, I've have successfully compiled the Orbfit program from Neodys using the free of charge Mingw port of the Gnu g77 Fortran 77 compiler version 3.2 on a...
