[Date Prev][Date Next][Thread Prev][Thread Next] - [Date Index][Thread Index][Author Index]

Fw: Re: Predict 2.2.3 for Linux




----- Original Message ----- 
From: "Bruce Robertson" <ve9qrp@gmail.com>
To: <w8iss@wideopenwest.com>
Cc: "AMSAT-BB" <amsat-bb@amsat.org>
Sent: Monday, March 17, 2008 9:25 PM
Subject: [amsat-bb] Re: Predict 2.2.3 for Linux


> On Mon, Mar 17, 2008 at 9:44 PM,  <w8iss@wideopenwest.com> wrote:
>> Bruce,
>>
>>  Do you have Gnome Predict installed also? I have found the same problem 
>> after
>>  installing Gpredict, but it will do it still even after uninstalling 
>> gpredict.
>>
>>  James W8ISS
>
> I just checked my Ubuntu 7.10 and, no, I did not have the gpredict
> package installed. In a private letter to KD2BD, I noted two other
> things: first, if I uninstalled the package and built predict from
> source  the result was a properly-functioning copy of predict;
> secondly, the 'broken' copies could be fixed by putting a predict.tle
> and predict.db file from a working copy in the ~/.predict directory.
> It must be something about the routines that create those files for
> the first time in ~/.predict; however, permissions are an obvious
> problem because the predict.qth file makes it just fine.
>
> 73, Bruce
> VE9QRP
>
>>
>>  ---------- Original Message -----------
>>  From: "Bruce Robertson" <ve9qrp@gmail.com>
>>  To: "John Heaton" <john@manchester.ac.uk>
>>  Cc: AMSAT-BB <amsat-bb@amsat.org>
>>  Sent: Mon, 17 Mar 2008 14:23:58 -0300
>>  Subject: [amsat-bb] Re: Predict 2.2.3 for Linux
>>
>>  > On Sun, Mar 16, 2008 at 7:37 AM, John Heaton <john@manchester.ac.uk>
>>  > wrote:
>>  > > -----BEGIN PGP SIGNED MESSAGE-----
>>  > >  Hash: SHA1
>>  > >
>>  > >
>>  > >  On 16 Mar 2008, at 05:50, Bruce Robertson wrote:
>>  > >  > Your Predict is possibly dying for a lack of a TLE file. Point to 
>> one
>>  > >  > with the -t command-line parameter. Ensure also that a qth file 
>> is
>>  > >  > being created in ~/.predict and that you as user can read it 
>> with,
>>  > >  > e.g. 'cat'. I believe predict is supposed to find a tle file in 
>> that
>>  > >  > same directory, but I think I've had troubles with that option.
>>  > >
>>  > >  Predict will run without a TLE file - you won't see any predictions
>>  >
>>  > I just double-checked this, and I still find that if there is no tle
>>  > file and none pointed to with a -t switch, it will die as Kent
>>  > described below. Namely, it will send you to the new user screen and
>>  > then exit when the info is entered. (Unfortunately, it exits with the
>>  > terminal in a funny state.) In my experience, it does this on a fresh
>>  > install with apt-get on Ubuntu, or with a build install (using root).
>>  > This is a frustrating loop for the user, since he or she can
>>  > reasonably expect that the data is entered after the first attempt,
>>  > and furthermore the qth file can be found in the ~/.predict
>>  >
>>  > I've taken a screenshot and posted it at
>>  > http://heml.mta.ca/Amsat/predict-fail.png
>>  >
>>  > If, however, you use -t to point it to a tle file it can't parse, it
>>  > will do as you, John, describe above. More specifically, you can
>>  > select the [P] option from the main menu, but this results in a blank
>>  > list of satellites from which to choose.
>>  >
>>  > For instance, the following command will produce this effect:
>>  > brucerob@heml:~$ touch foo
>>  > brucerob@heml:~$ predict -t foo
>>  >
>>  > I get the exact same effect if I use the documented nasa tle files.
>>  > For example:
>>  >
>>  > brucerob@heml:~$ wget 
>> http://www.amsat.org/amsat/ftp/keps/current/nasa.all
>>  > brucerob@heml:~$ predict -t nasa.all
>>  >
>>  > Fails the same as my 'foo' file above. However if I edit out the
>>  > comments in the file describing the file format so that the first
>>  > line begins with 'AO-07', predict operates normally.
>>  >
>>  > >  > Finally, make sure that your tle file does not have any comments 
>> at
>>  > >  > its top before the actual elements. For instance, the commonly 
>> used
>>  > >  > nasa.tle files have a set of comments describing the tle format.
>>  > >  > Predict dies on these.
>>  > >
>>  > >  Predict ignores data in the TLE file before the TLE data, so if you
>>  > >  get your TLE as a meil message you don't need to remove the headers
>>  >
>>  > Perhaps predict is written to ignore the headers of a mail message,
>>  > but not the comments that appear in the nasa file?
>>  >
>>  > I hope it is understood that I'm documenting this because I like
>>  > predict and consider it a wonderful arrow in AMSAT's quiver. Indeed,
>>  > since it might be a potential AMSAT'er's first encounter with pass
>>  > prediction -- given that it is part of the debian world -- I think we
>>  > should ensure that it is very easy to use. Furthermore it
>>  > cross-compiles like a dream: as I've said elsewhere it works
>>  > identically on a Nokia N800; and another member of this list got it
>>  > to run on the gumstix platform.
>>  >
>>  > 73, Bruce
>>  > VE9QRP
>>  >
>>  > >
>>  > >  >
>>  > >  > On Sun, Mar 16, 2008 at 12:59 AM, Kent R. Frazier 
>> <k5knt@amsat.org>
>>  > >  > wrote:
>>  > >  >> I just installed Ubuntu Linux 7.10 and Predict 2.2.3 on my
>>  > >  >> notebook. When I
>>  > >  >>  start Predict I get the "new user" screen where I enter the 
>> required
>>  > >  >>  information. After pressing the "enter" key on the last entry I
>>  > >  >> get a
>>  > >  >>  command prompt. I can not seem to get to the main menu.
>>  > >  >>
>>  > >  >>  Is anyone using this software that could offer some 
>> suggestions?
>>  > >  >> Or maybe
>>  > >  >>  another alternative to run under Linux?
>>  > >
>>
>> > _______________________________________________
>>  > Sent via AMSAT-BB@amsat.org. Opinions expressed are those of the 
>> author.
>>  > Not an AMSAT-NA member? Join now to support the amateur satellite 
>> program!
>>  > Subscription settings: http://amsat.org/mailman/listinfo/amsat-bb
>>  ------- End of Original Message -------
>>
>>
> _______________________________________________
> Sent via AMSAT-BB@amsat.org. Opinions expressed are those of the author.
> Not an AMSAT-NA member? Join now to support the amateur satellite program!
> Subscription settings: http://amsat.org/mailman/listinfo/amsat-bb 

_______________________________________________
Sent via AMSAT-BB@amsat.org. Opinions expressed are those of the author.
Not an AMSAT-NA member? Join now to support the amateur satellite program!
Subscription settings: http://amsat.org/mailman/listinfo/amsat-bb



AMSAT Top AMSAT Home