Unknown object on azimuth grid above is-19 satellite

Asked by jerry andrews

I don't know if this is a bug or maybe an object that hasn't a name but it is a puzzle.

I'm in Adelaide Australia and was looking for the location of a geostationary satellite (IS-19) Upon zooming in to it I noticed a streak above it that Stellarium wouldn't identify. It is geostationary residing above the Satellites location. Using the Azimuth grid it is located at +40°7'30" +42°7'5" at my Adelaide location , streaking from top left to bottom right. I don't know if it is a bug or maybe an unlabeled object. I am using Stellarium version 0.12.4 so it might be a bug in some data with that version. I'm going to update soon (2 weeks) but am wondering what it might be at the moment.

Any information would be of great help.

Many thanks!
J

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Alexander Wolf (alexwolf) said :
#1

Please try update TLE - I guess it's very old object on orbit, who is not exists currently.

Revision history for this message
jerry andrews (jerrygalactic) said :
#2

Ah, I did a satellite update and the interesting thing is the object
has changed from the north west to south east diagonal to a west
south west to east south east diagonal. Strange. All the data sets
are ticked for the satellite update when I updated all the info. I'll
include a picture so you can see what I mean.
 As you can see it's right above the Intelsat (is-19) satellite and
above the 40 degree 6 minute latitude.

It's very odd. No data comes up in regards to it when clicked on.
Whatever it is it's listed somewhere as geostationary. but it's
rotating. Just a thought, wasn't there an experiment conducted in
trying to generate electricity via a long wire in space? Is this
possibly a jettisoned wire in the database that is unlabelled? Space
junk in the data sets?

I hope this extra information helps Alexander.

Cheers!
-------------------------------------------

On 25/10/2015 at 4:02 PM, "Alexander Wolf" wrote:Your question
#272960 on Stellarium changed:
https://answers.launchpad.net/stellarium/+question/272960

    Status: Open => Answered

Alexander Wolf proposed the following answer:
Please try update TLE - I guess it's very old object on orbit, who is
not exists currently.

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Alexander Wolf (alexwolf) said :
#3

Can you say to me name of that strange object?

Revision history for this message
jerry andrews (jerrygalactic) said :
#4

I don't know the name of the object. Didn't you get the image I sent
you showing the zoomed in snapshot I took of it? Check your email
account, as I think the website is filtering out the image.
 Sent using Hushmail
On 27/10/2015 at 12:07 AM, "Alexander Wolf" wrote:Your question
#272960 on Stellarium changed:
https://answers.launchpad.net/stellarium/+question/272960

    Status: Open => Needs information

Alexander Wolf requested more information:
Can you say to me name of that strange object?

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jerry andrews (jerrygalactic) said :
#5

I actually had a thought that you aren't zooming in on the object.
Adjust your location to Adelaide Australia then display the IS-19
satellite, then zoom in using the Page up key until the FOV is 0.0605
degrees centering the IS-19 every time it moves out of screen center.
Just checked the object and it now is just below the 40 degree 6
minute line using the azimuth grid from my Adelaide location. Like
I've said before it doesn't have a name when I've clicked on it.
Here's another snapshot.
 Sent using Hushmail
On 27/10/2015 at 12:07 AM, "Alexander Wolf" wrote:Your question
#272960 on Stellarium changed:
https://answers.launchpad.net/stellarium/+question/272960

    Status: Open => Needs information

Alexander Wolf requested more information:
Can you say to me name of that strange object?

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To answer this request for more information, you can either reply to
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Revision history for this message
Alexander Wolf (alexwolf) said :
#6

I tried reproduce it but no success. Can you try restore settings and satellites database in Satellites plugin and re-check it again?

Revision history for this message
jerry andrews (jerrygalactic) said :
#7

I did that and IS-19 satellite disappeared as well as the object. I
Just worked out what it was and discovered there is a bug in the
program data. I carefully unticked all the satellite source data then
reinstalled each with an update. The line didn't appear until I went
into satellite configuration and ticked the orbit lines. For a
geostationary object you'd think the lines wouldn't be necessary but
I've realized the Stellarium program isn't absolutely perfect. It's
exceedingly good but not perfect. Satellites make corrections to stay
where they are. Unfortunately this is the limitation of the program
as it needs updates every few days to maintain their positioning.
But the program still has the problem of where the orbit lines are in
relation to the satellite in close up. THATS the flaw that has
manifested with program. After clicking on the IS-19 satellite then
going into the configuration menu settings I was doubly sure when
adjusting the orbit lines and watched the lines extend outward. Funny
thing though is watching the line move in sync with the satellite with
the speed of time increased and it making an elliptical loop as the
hours ticked by in seconds.

I'm going to check the other satellites orbit lines to see what
happens and to see if the orbit lines match up with them.

I checked out the nearby Optus-10 clicked on the orbit lines and
zoomed in. Yep the same synchronization problem on close up. But you
have to zoom on the object to a FOV of below 0.1 to really see it.

Anyway I think this can be classified either as a bug that needs to be
fixed or due to it being 99.98% off of perfect an acceptable design
flaw. Though the interesting thing is the fact that the misalignment
of the orbit lines is the same between either satellite with it being
above the satellite by a minute of the azimuth.

Many thanks Alex for the help.
 Sent using Hushmail
On 28/10/2015 at 12:32 AM, "Alexander Wolf" wrote:Your question
#272960 on Stellarium changed:
https://answers.launchpad.net/stellarium/+question/272960

    Status: Open => Needs information

Alexander Wolf requested more information:
I tried reproduce it but no success. Can you try restore settings and
satellites database in Satellites plugin and re-check it again?

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Revision history for this message
Alexander Wolf (alexwolf) said :
#8

Please fill a bug report for the issue.

Can you help with this problem?

Provide an answer of your own, or ask jerry andrews for more information if necessary.

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