Half a year ago, I captured a photograph of a long train of satellites. However, when I navigate to that location using this tool, I don’t see any satellite train present at that specific timestamp.
I wonder if there are other satellites not included in this dataset, or if I should search way further from the location on the map
A lot of the trackers miss the trains because trains occur within the first few orbits after a launch. So if they don’t start recording data until some delayed event, they miss it. I had this problem a lot with live night sky trackers not showing the trains despite me seeing them quite clearly.
Why are there demarcations towards the poles where the satellite density drops off? Seems Norway, Sweden and Finland have a much lower density of satellites .
In order to cover those northern/southern extremes, more expensive high inclination orbits are required (in the US these are launched from California). They are more expensive because you’re no longer getting the rotational velocity of the earth for free in your orbital velocity.
So for a LEO constellation you want to minimize the launches to high inclinations and keep the bulk in those juicy easterly ones.
its not the most intuitive setup but theres a lot of info available.
click on a dot and it will show up on a list to top left, click on an item in that list and you get a flyout menu to the top left with a bunch of data regarding the satellite.
If you zoom in you can see them moving. Click on them to see their tracks. I'm surprised how random the orbits seem. It's too cloudy at the moment but maybe on a clear night I can check the accuracy by looking up.
I wonder if there are other satellites not included in this dataset, or if I should search way further from the location on the map
the anti collision manuevers are hard as well.
orbits are simpler at lower lattitudes where you run a trajectory, close to parallel to the equator.
In order to cover those northern/southern extremes, more expensive high inclination orbits are required (in the US these are launched from California). They are more expensive because you’re no longer getting the rotational velocity of the earth for free in your orbital velocity.
So for a LEO constellation you want to minimize the launches to high inclinations and keep the bulk in those juicy easterly ones.
There are two clearly demarcations both north and south
click on a dot and it will show up on a list to top left, click on an item in that list and you get a flyout menu to the top left with a bunch of data regarding the satellite.