Generate New Template
I am doing a project to model the satellites and try to work out which one took the images. I can do the satellite stuff and are part way though that but another step is to establish the angle the film was taken. So I have done just that and here are my findings:
Part one: establishing the angle of banking
This is probably the trickiest part. The only real way I can do it is to eyeball and guess. Overlaying this model and rotating it until it looks like it fits is the best I can do. Does this look like the appropriate angle of banking to you? (note that the blue on the wings is an attempt at simulating wing flex, so this is more likely the kind of wing position they would have been in.
Angle of banking. Is the model banking at the correct angle?
This also assumes that the drone footage has a normal orientation (ie, the ground would be horizontal at this perspective, there is no rotational shift in the image). This is the part of the analysis where I do not have any particular skill so feel free to chime in.I have chosen this point in the video(s) because this is the point in the sat video where the plane appears to most be side on to the camera. You can also see at this point that the tail fin and the wing tip appear to be in the same visual plane compared to the view point. This will be helpful as you can see in the next diagram.
Green lines represent line of sight. Blue represents possible wing flex
I have drawn the green lines in to help you visualize the point of view and what you are seeing. The blue edits are more likely to be the actual wing positions due to wing flex in flight. The outer wing when performing a hard bank will flex more. The red and yellow bars represent 3.5m distance each. The conclusion is a 36 degree angle of filming, obviously with some margin for error.
Part two: establishing a compass bearing
Ok so we have a viewing angle but now we need a compass bearing.
This is the spot we are using: (purple dot)
And this is it overlaid onto an overlay of the GPS co-ords over google maps
I am estimating the rotation of the plane here based on it’s route and contrails.So although there is a bit of estimating rather than calculating, we can put some numbers on a vector for where this satellite was in the sky. It was approximately 36 degrees from the horizon on a bearing of 204 degrees.
My next step is to reference this information to satellites in the area at the time. I already have made quite some progress on this but wanted to make this post first in case someone can point out flaws or perhaps a better method of calculating this stuff.
Soon I will provide a model showing where all relevant satellites were at that time down to the second.
Feel free to use or expand upon this information as you see fit. Debunk me encouraged. I want to know if I am doing wrong
submitted by /u/pilkingtonsbrain
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