Re: Re: Telescopic Satellite Tracking software

Date: Tue Jan 04 2011 - 17:01:59 UTC

  • Next message: Alberto Rango: "4542 PPAS 04 - 11 SEP 2010."

    Hi Greg,
    Many thanks for your information and thanks also to all other contributors !
    On my forum about sky observing:  
     I just got an aditional reply from "astroferg". Here is what he wrote:
    "I use Brent Boshart's previously mentioned Satellite Tracker program. It has its quirks, but it's the only way I know how to successfully track ISS telescopically. I've tried hand guiding but I just don't have steady hands for that kind of thing, particularly when using a 2x barlow for maximum resolution. It's available for free from this yahoo group, it's compatible with a good number of telescopes (and even more than advertised if you can emulate the LX200 protocol using additional software) so it can't hurt to try it:
    It takes practice to track ISS properly even with the program's help. The biggest breakthrough for me was to use a webcam on my viewfinder and a second video camera through the main telescope so that I have both views showing side by side simultaneously on the tracking computer. I can then use the mouse adjustment feature to put ISS in the main view fairly easily and rapidly. I used to use a joystick and just look through the viewfinder, but it's quite tricky to do that, especially at long focal lengths.
    Another option for getting ISS photos is to predict and record lunar or solar transits, that way you don't need to directly track ISS. Lunar transits are really best when ISS is in shadow. I've done it once before, but it was low on the horizon so the quality wasn't fantastic. That's another factor to consider, but it also narrows down the number of transits that are worth chasing. They're highly location specific too. I recommend this site for predicting when and where a transit will appear:
    Once you find out where one will appear near you I recommend setting your "home location" to the place within the path you plan to observe it from so that you can generate an image showing where on the moon's surface ISS will cross. Check again less than 24hrs before the pass as any maneuvers by ISS can change the prediction. "
    All the best !
    Message du : 03/01/2011
    De : "Greg Roberts " <>
    A : "Robin R. Wier" <>,
    Copie à :
    Sujet : Re: Telescopic Satellite Tracking software
    Hi Robin
    Thanks for your input - this is what we need...
    > Just a lurking hobbyist here with no technical knowledge, but I think ST 
    > is somewhat telescope dependent, and very user competence dependent. I 
    > have used ST for over 10 years with my '98 8" LX200.
    this is the impression I got from reading the newsgroups that use SATELLITE
    TRACKER. Until recently I did not have a suitable GOTO telescope and could
    only "examine" the program on my PC and found things a little confusing so 
    never really considered it seriously.
    I do know that it has problems with some geostationary satellites as Scott 
    pointed out so another reason why I havent bothered with it (yet). Ive got 
    many things I want to do but when I have the time I just havent got the 
    to get off my butt and try it - I get frustrated pretty easy !
    So far SATELLITE TRACKER only seems to have been used by people
    trying to image ISS. As far as I know no one has done ANY positional
    work with it apart from Scott and Tim ?
    Usuing a commercial GOTO telescope for serious satellite tracking is a
    relatively new field so there is much to learn
    Best wishes
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