Hi Bill, Thanks very much for the upgrades. It was cool to see the change in U by "x"ing out astrometry from successive oppositions on a few of my test orbits....
74
Tomas
scibuffcom
Jun 29, 2011 5:26 pm
I'm looking at http://www.projectpluto.com/find_orb.htm#impacts and the description how Find_Orb can determine impacts, in this case 2008 TC3. I've downloaded...
75
Bill J Gray
pluto@...
Jun 29, 2011 5:42 pm
Hi Tomas, Looks as if I need to add a step in that section of the documentation: you have to go into Settings, and make sure that the 'heliocentric orbits ...
76
Tomas
scibuffcom
Jun 30, 2011 8:40 am
Thanks Bill, unchecking that box did it and everything else is just as in the documentation (I suspected it would be something this simple, just missed that...
77
fcorica0802
Jul 12, 2011 1:57 am
Hello all: My name is Francisco Rica and I am a no-professional astronomer from Spain. I calculate orbital parameters for visual binary since 2008 using Docobo...
78
fcorica0802
Jul 12, 2011 2:20 pm
Hello: Please forget my message. Finally yesteday I could confirm that "gm" variable is G * (Ma + Mb) where G is the gravitational constant Ma is the mass for...
79
Bill J Gray
pluto@...
Jul 12, 2011 6:00 pm
Hi Francisco, ... True. I'm usually thinking in terms of asteroids, where the mass of the secondary component can be safely neglected (unless you're going...
80
fcorica0802
Jul 17, 2011 10:15 am
Hi Bill: Thanks for your response. I finally could finish my Excel file to calculate orbital parameters for visual binary using as input data the r and v...
81
andrew_j_walker
Aug 10, 2011 12:13 pm
Can someone else have a look at this one with findorb and see if they get the same? At present on the NEOCP it has 17 observations and an orbit near Saturn's...
82
andrew_j_walker
Aug 11, 2011 12:05 pm
Before it disappears, this became 2011 OF45 http://www.minorplanetcenter.net/mpec/K11/K11P43.html...
83
walcom77
Aug 11, 2011 12:11 pm
Dear Andrew ... Today DOU includes our August 10, 2011 obs of this object: COD F65 OBS N. Howes, H. Blyth, E. Guido, G. Sostero MEA N. Howes, H. Blyth, E....
84
puck2017
Aug 19, 2011 12:19 am
Hi all, I'm a little bit confused by the Revision info on the websites. When I go to projectpluto.com/find_orb.html, it says that the last update was 2010 Oct...
85
Bill J Gray
pluto@...
Aug 19, 2011 1:45 am
Hi Andy, My goof; when I updated the Web page to describe the current "in-testing" version, I didn't correct the text at the top that basically says, "there...
86
andrew_j_walker
Aug 19, 2011 9:11 am
Nice to hear of all the updates Bill, I especially like the linking widely separated arcs news. I'll also mention that the astrometry for "Natural outer...
87
Paulo Holvorcem
holvorcem
Aug 20, 2011 4:01 pm
Hello Bill, I just noticed that the link to the precompiled console-based Win32 version of Find_Orb (http://home.gwi.net/~pluto/devel/find_orb.exe) is broken. ...
88
Bill J Gray
pluto@...
Aug 20, 2011 5:40 pm
Hi Paulo, Thanks for the heads-up on this. I've updated the page to fix this. To do it, I ZIPped the current 'find_orb.exe' together with two DLLs on which...
89
Bill J Gray
pluto@...
Aug 21, 2011 2:33 am
Hi Andrew, ... This is proving to be a beast of a problem (which, of course, makes it more interesting). I've gotten involved in it in part because of the...
90
Tomas
scibuffcom
Sep 5, 2011 11:11 am
Hi Bill I was wondering, would it be possible to include the value of the Jupiter Tisserand invariant (calculated using the given elements from an orbit...
91
Maik Meyer
maiki666
Sep 5, 2011 11:25 am
Tomas, ... this is already available. Check the file elemets.txt in the FindOrb directory after producing a solution. There you have it. Cheers, Maik -- If...
92
Bill J Gray
pluto@...
Sep 5, 2011 3:51 pm
Hi Tomas, As Maik mentions, this data is stored in 'elements.txt'... but not actually shown in the Find_Orb dialog, along with Tisserand invariants relative...
93
Bill J Gray
pluto@...
Sep 11, 2011 5:52 pm
Hi Alessandro, ... Yes, I'm reasonably confident that they are. ... That's because Find_Orb is not very good at doing this sort of thing. I've been working on...
94
alessandro odasso
alessandro_o...
Sep 11, 2011 7:14 pm
Thanks Bill for your interesting work and for writing the tutorial showing how to use Find_Orb in cases like this! ... and thanks Tommy for your update. ...
95
puck2017
Oct 12, 2011 12:43 am
Hi Bill, How would I go about decoding the covar.txt file if I all I wanted was the uncertainties in the 7 main orbital parameters? Thanks, Andy...
96
andrew_j_walker
Oct 12, 2011 7:39 am
In the devel version (haven't checked the main version) these are given right at the end of the file. Mine at the moment has this: sigma_Tp 0.0429...
97
Bill J Gray
pluto@...
Oct 12, 2011 4:04 pm
Hi Andy, Andrew, I was about to mention looking at the end of 'covar.txt'... Andrew beat me to it. Much of the rest of 'covar.txt' is basically just debugging...
98
Diego R
incorregible_98
Dec 14, 2011 3:43 pm
may several photo frames be used to calculate a tennis ball trajectory, including speed and probable landing spot?...
99
Diego R
incorregible_98
Dec 14, 2011 3:45 pm
may several photo frames be used to calculate a tennis ball trajectory, including speed and probable landing spot?...
100
Bill J Gray
pluto@...
Dec 19, 2011 2:36 am
Hi Diego, Do you mean in Find_Orb, or more generally? It's obviously a little bit outside the scope of "normal" Find_Orb use, and I am virtually certain that...
101
Alessandro
alessandro_o...
Feb 18, 2012 12:32 am
is the Montecarlo button working ? In a previous version, after pressing this button, the progressive number of virtual asteroids was displayed as they were...
102
Bill J Gray
pluto@...
Feb 18, 2012 2:22 am
Hi Alessandro, (Groan) Thank you. There is a problem here. Unfortunately, since I hadn't heard of any bugs with the "development" version in a _very_ long...
