The AstDyS online service is up, with the updated asteroid catalogs, including 118161 numbered, 100643 multiopposition and 80167 single opposition asteroids...
Andrea Milani
milani@...
Nov 1, 2005 2:45 pm
16100
http://www.isas.ac.jp/e/snews/2005/1027.shtml Current Status of Hayabusa and Events Scheduled in November Japan Aerospace Exploration Agency (JAXA) October 27,...
Ron Baalke
baalke@...
Nov 1, 2005 5:14 pm
16101
http://www.isas.ac.jp/e/snews/2005/1101.shtml All around a small world! Japan Aerospace Exploration Agency (JAXA) November 1, 2005 Hayabusa has finished an...
Ron Baalke
baalke@...
Nov 1, 2005 5:30 pm
16102
http://www.isas.ac.jp/e/snews/2005/1102.shtml Hayabusa's Scientific and Engineering Achievements during Proximity Operations around Itokawa Japan Aerospace...
Ron Baalke
baalke@...
Nov 2, 2005 8:20 pm
16103
During my surveying, I've been surprised at how many low orbit satellites are visible travelling through opposition. I would imagine that many of these are ...
Richard, You have to seperate out the "appearance" of the object as being at opposition, and those objects that are truely at 180 deg elongation. Given that...
Robert McNaught
rmn@...
Nov 3, 2005 5:55 am
16105
... Many years ago, in the 1960's, I actually watched one of the Echo satellites pass into shadow but remain visible apparently by the reflected light of Los...
Sheesh, you DID mean exactly at opposition. In that case, the limit (ignoring the atomsphere's obscuration and refraction) the formula would approximate to H =...
Robert McNaught
rmn@...
Nov 3, 2005 6:15 am
16107
... The Moon does not remain in sunlight through opposition. However, the size of the Earth's umbra isn't that large at the Moon's distance. The percentage of...
Dave Tholen
tholen@...
Nov 3, 2005 6:32 am
16108
... The refractive effect of the atmosphere makes a big difference. With satellite tracking software guiding the scope, I routinely follow satellites far...
... dark ... "Shuttle-glow" is a well documented phenomenon, as viewed from within the Space Shuttle bay; I wonder if other satellites produce a "glow" of...
http://www.isas.ac.jp/e/snews/2005/1103.shtml MINERVA explores the surface of ITOKAWA Japan Aerospace Exploration Agency (JAXA) November 3, 2005 MINERVA...
Ron Baalke
baalke@...
Nov 3, 2005 5:38 pm
16111
... Well, no. I too have tracked many satellites into the shadow, and as you say it is not sharp. A typical satellite 1000 km or so up (as the old Echo ...
... Hi, Alan, I think that, because the Echo balloon satellites were at *such* high altitudes, and were themselves such large, effective, reflectors, there's a...
Hi there, I have been writing a program that will pull out special asteroids from Mpcorbcr.dat i.e. Atens, Apollo's etc. Looking at the Mpcorb format page ...
The unusuals list contains all objects that have received a designation and I think an orbit. MCPORB.dat contains the objects for which a current reasonable...
Today's descent aborted Japan Aerospace Exploration Agency November 4, 2005 Due to a detection of anomalous signal at GO/NOGO decision, today's descent,...
Ron Baalke
baalke@...
Nov 4, 2005 4:30 pm
16116
... mpc@cfa is not only the obs submission address, but also the general contact address. Gareth...
Where can I look up the physical attributes for small bodies in the solar system -- minor planets, moons, and comets? I am interested in their mass, maximum...
... I am troubled by your statement above, that you will discard matters of fact in favor of a name. The matter of naming protocol has been discussed at...
Hi, From Brown et al., ApJ.L, 2005 "One significant difference between the 2003 EL61 system and the Pluto-Charon system, however, is that while Pluto and...
Where can I look up the physical attributes for small bodies in the solar system -- minor planets, moons, and comets? I am interested in their mass, maximum...
Hi Scott, it will pull out any of the objects mentioned in this link http://cfa-www.harvard.edu/iau/info/MPOrbitFormat.html including PHA's and critical list...
Hi All, Is there a web-based alternative to using ASTPlot or MPChecker to check unknowns for matches? If not, is there any estimate on when either of these...
... (2nd attempt to get this message through--apologies if both show up!) This is the first I've heard that MPChecker isn't working. How is it not working?...
I responded to this message directly from the Yahoo MPML group website yesterday. Today I was dismayed to find that the digest for the day did *not* include...
