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Is there any way to locate the location of Iridium satellites offline?

Alberto
over 2 years ago

I use https://www.iridiumwhere.com/ to better understand the movements and possibilities of the Iridium constellation.

Logically, in a place without cell coverage, it is useless. I have looked for an app that allows me to download the Iridium almanac to be able to see the location of the satellites offline. I have not found it.

Do you know any system to see the location of Iridium satellites in motion offline? Something that indicates its azimuth and elevation at all times, in case we are in a place with poor reception (canyon) and have more possibilities of locating in an emergency.

  • 0 over 2 years ago

    By the way, I don't remember where I read that the satellites moved from southwest to northeast, but I think that is not the case and they move in polar orbits on the north-south axis. Someone commented that the most complex places of reception were the canyons oriented northwest southeast, but I think that, as they work, I don't know if the orientation influences much, because they move and change the orbit in Earth's longitude

  • 0 over 2 years ago

    I'm not sure it's necessary to be this focused on the position of satellites in real time. Most frequently, there is only one satellite in view, sometimes two, and rarely three. You will want to minimize obstructions in all directions down to about 20 degrees above the "flat" horizon (70 degrees from overhead). This is what Garmin means by "clear view of the sky".

    In addition, you really don't have any control over where you are when you have an emergency. If you are immobilized, it is what is. If not, climb out/up and get yourself a good sky view.

    Do try to avoid heavy canopy, especially when wet. Otherwise, it's mostly terrain.

  • +1 over 2 years ago

    There is an IridiumWhere app in the IQ store if you have a compatible Garmin device.  The orbital data needs to be downloaded initially and periodically thereafter but the developer suggests it should be accurate for 10 days.  After 10 days it will be approximate, and after 30 days it will be wrong.

  • 0 over 2 years ago

    Thanks for the info. I knew it, but I don't have that device. I was looking for an Android app that would allow us to download that satellite almanac, even if it is valid for a few days offline

  • 0 over 2 years ago in reply to Alberto

    remember: the footprints of the satellites are overlapping. One sat is abt 9min in view, but there is other one already coming next to it. Until you find something in your app with expired data, the satellite you found is already history.