Dave, Very nice Q&A. You mention a special asteroid, 2004 XZ130, but I cannot find orbital elements for it anywhere. MPC states: No published elements ...
... Thank you! ... That's because the MPC doesn't have all the observations yet. The ephemeris based on Vaisala elements is not really an issue at the moment,...
Dave Tholen
tholen@...
Mar 1, 2005 11:36 am
14275
"2000 SG344... I've given the object higher priority for astrometric observation, getting it a year and a half ago when it was magnitude 26, probably the...
Thanks. The Vaisala-based ephemeris didn't really fit your values for a=0.617 and Q=0.898, but indicated an orbit with the asteroid trailing Earth in its orbit...
... They were measured only very recently. The field distortion proved to be an impediment for a long time. I had to stack multiple exposures to achieve...
Dave Tholen
tholen@...
Mar 1, 2005 10:41 pm
14278
... You're welcome. ... I'm not surprised. For an object like this, you're better off assuming that it's closer to aphelion. The KNOBS approach worked...
Dave Tholen
tholen@...
Mar 1, 2005 10:52 pm
14279
... There's also 1998 DK36, which is at H=24.9 or roughly 40 m but is considered lost (only four observations over two days), and we have the 2002 JX8, with ...
... I'm intimately familiar with that one. Sort of a "hot-button" topic. ... Q = 1.006 AU for that object, and there are six others with smaller Q (not...
Dave Tholen
tholen@...
Mar 1, 2005 11:58 pm
14281
Just wondering what we really know about astroid 1950 DA. I understand it has a 1/300 chance of impact on March 16/2880 and what I am wondering is its spin...
Hi, I've collected a few animations representing the Rosetta's close encounter with Earth on this page: http://orsa.sourceforge.net/atwork.html One of the...
Can someone please give me a hand with interpreting a few non-standard comet designations? I am writing an article on comet naming for my astronomy club ...
... http://cfa-www.harvard.edu/iau/Headlines.html ... P/2004 EW38 (Catalina-LINEAR). Discovery in course of Catalina and LINEAR survey programs (reported...
Can you give me a reference to those naming rules? I have looked pretty hard for it on numerous web pages, including the MPC and IAU naming conventions but...
Thanks, Gareth - I did read that (and reread it carefully just now) and see the reference to the previously asteroidal naming, but while it mentions using...
... Both, Korado Korlevic and Mario Juric were at that time observers at 120 Visnjan and they are the discoverer of 1999 DN3 which later turned out to be a...
... reference to ... of the ... reflects ... don't see ... designations are ... That is not necessary in that document, as the minor planet designation scheme...
I've been blinking last nights images and came across something which is travelling about a degree every 6 min or so. Anyone have any suggestions on how to...
Thanks, Gareth, Reiner, and Maik - those were the details I needed. Anyone want to chime in on what the '1-A' in the designation 141P/1994 P1-A (Machholz 2)...
... "A" fragment of a split comet. ... ******************************************************************* Alan W. Harris Senior Research Scientist Space...
http://sci.esa.int/science-e/www/object/index.cfm?fobjectid=36631 Earth Fly-by Approaches European Space Agency Rosetta February 28, 2005 Report for the period...
Ron Baalke
baalke@...
Mar 3, 2005 10:54 pm
14294
Hi folks, Bill Dillon and Peter Kusnirak have imaged this object, and found it a bit brighter than expected: http://www.satobs.org/seesat/Mar-2005/0027.html ...
Can somebody clarify this: the bright object that briefly appeared on the NEOCP under the designation 5E2224A, but has now been removed, (I hardly dare ask the...
reinder j bouma
rjbouma@...
Mar 4, 2005 1:00 am
14296
Hello, Sir. It is possible that when these comets were discovered is believed that they were asteroids -coma absence, slow mouvement...-. When they came closer...
I notice that another two '5E' objects and one 'SW' object are all close to the current Rosetta position, so the surveys were looking in that direction last...
Now I know you guys are all way beyond me here, with a few of you sitting there with your million dollar scopes (I wish!) - but I'm about to purchase my first...
Darren McManaway (DSL...
darrenm@...
Mar 4, 2005 1:37 am
14299
... Still willing to try 1. Send time and position to me, I can identify it, but cant distribute the orbit 2. get a copy Bill Gray's sat_ID Subscribe to...
... FYI: the 735 observations were published on DASO 21 (see links under http://cfa-www.harvard.edu/~gwilliams/DASO/)-- I note the reference is blank on your...
Hi Tony, You wrote: "...I can identify [the satellite], but can't distribute the orbit". I don't think you can even identify it, at least not if you've used...
I understand applaud your apology, nevertheless, it puts me in mind of a story I heard years ago. A fellow was speaking before a college audience when a...
