... To make a plot would be a bit cumbersome for me, but I can answer this question in another way: As a representation of the uncertainty ellipsoid (actually...
Hello, Does the ICQ observation format CCD line is still active? For instance ICQ: IIIYYYYMnL YYYY MM DD.DD eM/mm.m:r AAA.ATF/xxxx &dd.ddnDC >t.ttmANG ICQ ...
All virtual asteroids (VA) of 2012 DA14 computed according to 1-sigma variation criterion goes closer on 2013, February 15th, to the Earth then the radius of...
... That's correct, but I was not mentioning the minimum distance of approach. I was talking about the distance at which the asteroid crosses the Equator plane...
All virtual asteroids (VA) of 2012 DA14 computed according to 1-sigma variation go to the geosynchronous orbit not closer then about 27000 km. All 191...
27033
Ron Baalke
baalke@...
May 21, 2012 6:58 pm
http://www.jpl.nasa.gov/news/news.cfm?release=2012-140 Cassini Spots Tiny Moon, Begins to Tilt Orbit Jet Propulsion Laboratory May 21, 2012 NASA's Cassini...
... It's true that this is all of purely intellectual interest, and that the greater danger does come from marbles (whether one-centimeter metric marbles or...
27035
Dave Tholen
tholen@...
May 22, 2012 3:22 am
... Only three? I threw out fifteen. The discovery observation is bad, as is the third observation on that same night. The entire set from code 950 on...
27036
Ron Baalke
baalke@...
May 23, 2012 8:16 pm
http://www.jpl.nasa.gov/news/news.cfm?release=2012-143 Dark Shadows on Mars: Scene from Durable NASA Rover Jet Propulsion Laboratory May 22, 2012 Like a...
... You're probably on the right track there. I will admit that I have no consistent policy on what observations I toss (*), but with 191 of them, it's hard...
... In this context it is interesting to compare the results obtained with and without adding to the observations the "biases" reported by the Neodys database....
27039
Dave Tholen
tholen@...
May 24, 2012 8:26 am
... We are not among the testers to whom the pre-release version of UCAC4 was sent, nor do we usually have enough of the brighter reference stars in our images...
Using the OrbFit software I got similar results as Aldo Vitagliano for minimum geocentric close approache of the nominal orbit of asteroid 2012 DA14 with the...
27041
Ron Baalke
baalke@...
May 24, 2012 5:09 pm
FOR IMMEDIATE RELEASE May 22, 2012 Lowell Observatory launches new professional/amateur initiative Flagstaff, Ariz. -- Lowell Observatory is proud to announce...
27042
Ron Baalke
baalke@...
May 24, 2012 9:08 pm
http://www.jpl.nasa.gov/news/news.cfm?release=2012-145 NASA Scientist Figures Way to Weigh Space Rock Jet Propulsion Laboratory May 24, 2012 A scientist at...
... It occurred to me, after I wrote, that UCACx might not help much with an observation at mag 23.5. ... I first learned of the Peirce criterion from that...
27044
Brian Skiff
bas@...
May 25, 2012 3:31 am
FWIW, Steve Levine here at Lowell made all-sky plots of mean proper motions for the fainter stars in UCAC2, UCAC3, and UCAC4 (the latter from a disc that...
... Electrifying result, that pushes me out of the seat :O Alex (VectorSCOPE)...
27046
Dave Tholen
tholen@...
May 25, 2012 4:56 am
... We typically reject anything with a residual of 0.5 arcsec or larger. Yes, I know such a practice would make a statistician cringe, but as the saying...
27047
Dave Tholen
tholen@...
May 25, 2012 5:05 am
... Forgot to mention in my previous response that when I built a custom version of PPMXL for asteroid use, I compiled a list of anomalies. The catalog...
Dear All, We regret to inform you once again that the SCN site will be not reachable starting from 05/25/2012 16:30 CEST to 05/28/2012 19:30 CEST. All this is...
Da/dt, computed using the OrbFit software, gives for the asteroid (101955) 1999 RQ36 value: (-19.0+/-0.5) 10^-4 AU/Myr. It changes value of semimajor axis of...
27050
Ron Baalke
baalke@...
May 25, 2012 9:44 pm
FOR IMMEDIATE RELEASE FROM THE UNIVERSITY OF ARIZONA May 24, 2012 This story and photos are online at: http://uanews.org/node/47370 . Contact information...
Hi, wonder if someone could answer a question about Guide 9.0. I installed Guide 9.0 on my PC and the software works fine, but I notice that if I try to...
You would be well served if you would download the MPECsort application file for Guide8 and 9 on the Arkansas Sky Observatories website; this freeware allows...
Motion is along a straight line (as far as I could tell with an approximate manual alignment of the images on what looks like a sunspot above/to the left of...
