Re: OT - Feature wish list

From: Björn Gimle via Seesat-l <>
Date: Mon, 9 Mar 2015 12:21:59 +0100
It can be easier still if you retain the XYZ coordinates of the 10 points
in the ring - just rotate the observer XY for the desired  interval.
But for a longer offset, and culminating in the S or N, the ring of points
may not suffice.
Den 6 mar 2015 14:49 skrev "Alan Madill via Seesat-l" <>:

> I've quickly put together a couple of screen shots at
> As it is now the program keeps the display points in a ring buffer,
> currently of size 10, so what you see on the screen are the last 10
> positions of the object in a train of circles with the current point
> displayed as a cross.  The size is dependent on the calculated apparent
> magnitude (using the Molczan definition) using the qsat.mag and mcnames.txt
> data.  If you hover the mouse within a certain distance of an object it
> will write details of the object to a textbox in the parent form and
> display (sometimes) a popup tooltip on the graphics form showing the name,
> mag, and distance.  If you right/left click on the graphics it will zoom
> in/out and the limiting mag of the star background changes from 4 to 8
> depending on the zoom factor.
> As it is right now the software only does realtime mode.  There are no
> input dialogs for observer location and such, you would have to edit an xml
> config file to change that.  It still is very much a work in progress.
> To do what you are talking about would involve playing with the orbital
> elements themselves and keeping a parallel set of display points?  Without
> going back over the SGP calcs would it be as simple as changing the epoch?
> Certainly possible to do.
> I'll try to make a copy of it available in the next week.  What I really
> want at this stage is some feedback on how accurate the display is.
> On 3/6/2015 1:21 AM, Marco Langbroek via Seesat-l wrote:
>> Greg Roberts via Seesat-l schreef op 6-3-2015 om 8:51:
>>  One thing I would like to see in software that I have not seen yet is the
>>> ability to display a satellite track against star background as a
>>> function of
>>> the error in the prediction - i.e if the satellite is expected to be say
>>> 10
>>> minutes early then display this track as well as the predicted track -
>>> in fact
>>> it would be nice if the time offset could be something requested by the
>>> program
>>> whilst observing.
>> I second this: this would be very useful. Cees' software can do this but
>> it runs under Linux.
>> - Marco
>> -----
>> Dr Marco Langbroek  -  SatTrackCam Leiden, the Netherlands.
>> e-mail:
>> Cospar 4353 (Leiden):   52.15412 N, 4.49081 E (WGS84), +0 m ASL
>> Cospar 4355 (Cronesteyn): 52.13878 N, 4.49937 E (WGS84), -2 m ASL
>> Station (b)log:
>> Twitter: _at_Marco_Langbroek
>> -----
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Received on Mon Mar 09 2015 - 06:22:19 UTC

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