P. Clay Sherrod Nov 11, 2015
----- Original Message -----
From: "Bill Gray pluto@... [guide-user]" <guide-user@yahoogroups.com>
To: <guide-user@yahoogroups.com>
Sent: Wednesday, November 11, 2015 3:33 PM
Subject: Re: [guide-user] RE: How to see the object WT1190F guide 9?
> Hi Clay,
>
> Updates to this are pretty darn rare. 'probes.dat' is mostly for
> interplanetary missions. I've added a few here and there, usually
> for objects coming back that might be observable. Cassini and Galileo
> are there mostly because it's pretty nifty to set up a viewpoint from
> those spacecraft (Cassini is in need of updating, though.) Similarly
> for New Horizons. You can set your viewpoint to be from the Voyagers
> and look back at the solar system from afar. There are a bunch of
> old Mariner and Pioneer missions in there, simply because I found
> elements for them that were easy to convert. (These are of ballpark
> accuracy. They start near Earth at the right time and end up at Mars
> or Venus at about the right time, though.)
>
> But it's unusual for interplanetary missions to be observable,
> and still more unusual for ephemerides to be made available. (Which
> I consider to be a bad idea. I think every outgoing mission should
> be tracked, both so we get information if something goes wrong --
> when CONTOUR "went missing", the call went out for images; the
> call should have gone out before launch -- and so that junk can
> be tracked as well.)
>
> -- Bill
>
> On 11/11/2015 04:20 PM, 'P. Clay Sherrod' drclay@... [guide-user] wrote:
>> Bill...how often do you update the database on the "probes" file.
>> This is really something handy that will assist many people in following this
>> stuff
>> for you.
>>
>> Clay
>> _____
>> Dr. P. Clay Sherrod
>> Arkansas Sky Observatories
>> MPC H45 - Petit Jean Mountain South
>> MPC H41 - Petit Jean Mountain
>> MPC H43 - Conway West
>> http://www.arksky.org/
>>
>> ----- Original Message -----
>> From: "Bill Gray pluto@... [guide-user]" <guide-user@yahoogroups.com>
>> To: <guide-user@yahoogroups.com>
>> Sent: Wednesday, November 11, 2015 3:18 PM
>> Subject: Re: [guide-user] RE: How to see the object WT1190F guide 9?
>>
>>
>>> Hi Grant,
>>>
>>>> Never mind – I have it. You have to use GOTO….Asteroid, then
>>>> enter WT1190F, for some reason.
>>>
>>> That's a bit odd. You're right, though; I'd not noticed it,
>>> because I'd used Go To... Object Name, and entered WT1190F. Both
>>> work. Go To... Satellite does not.
>>>
>>> To get it to show up, you have to go to Data Shown, and either
>>> turn satellites "on" or set a magnitude limit such that WT1190F shows
>>> up. (It's at about mag 20 right now.)
>>>
>>> Also, be warned: the elements in 'probes.dat' (or 'probes.txt')
>>> run from 1 November up to slightly after impact (13 November 06:19).
>>> They'll be quite good for observing from now until then. They are
>>> probably not so great for early November, other than to give a ballpark
>>> idea of what WT1190F was doing back then.
>>>
>>> Grant, that bit with HTML tags being added in when you saved
>>> 'probes.dat' is _really_ bizarre, and represents a new low for
>>> Internet Exploder (I'm pretty sure that was the offending browser).
>>> One can get around that (possibly entirely intentional) defect in
>>> the browser by getting this file :
>>>
>>> http://www.projectpluto.com/probes.zip
>>>
>>> and extracting 'probes.dat' from it.
>>>
>>> No matter how you get it, whether by just downloading 'probes.dat'
>>> or by getting 'probes.txt' and renaming it, or by extracting it from
>>> 'probes.zip', the file 'probes.dat' should contain exactly 21058 bytes.
>>>
>>> -- Bill
>>>
>>>
>>> ------------------------------------
>>> Posted by: Bill Gray <pluto@...>
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>>
>>
>>
>> ------------------------------------
>> Posted by: "P. Clay Sherrod" <drclay@...>
>> ------------------------------------
>>
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>>
>
>
> ------------------------------------
> Posted by: Bill Gray <pluto@...>
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