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Questions tagged [satellite-navigation]

15 questions
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GnssStatus.CallBack onSatelliteStatusChanged() not working

I am developing an application that I want to learn about the count of gps satellites. I am using the "onSatelliteStatusChanged" method for this, but it does not work. The piece of code that I use below that you see. Code if (Build.VERSION.SDK_INT…
merveylcu
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2 answers

How does route finding software work?

I'm asking at a pretty high, language independent, level. How does route finding (as found in Google Maps 'Get directions' or a GPS) work? I can't believe it tries every conceivable route and chooses the shortest/fastest etc. There must be some…
Chuckatron
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Satellite position computation using Runge-Kutta 4

my issue is related to Runge-Kutta 4 (RK4) method and the correct iteration steps required for the state vector of an orbiting satellite. The below code (in Python) describes the motion based on the description as per this link…
pymat
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how to do i get the status of satellites i.e. alive or dead while flight is in air

I'm just planning to build small app in Android which checks the status of satellite i.e. alive or dead. In airplane cabin, crew member can use internet from the mulitple Wireless Access Point which are connected to Satellite modem. The satellite…
sia
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2
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Displaying gps satellite positions on skyplot

I have parsed ephemeris data in order to get the ECEF (or lat/long) positions of satellites visible above my current location. I would love to display those locations in a sky plot in my C# program. I added a picture box to my GUI and attempted to…
Jason
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1 answer

How to find satellite relative velocity in skyfield?

I need to find how fast a satellite is moving relative to me. I was thinking about using the Python package 'skyfield' but I don't see how I can calculate this: from skyfield.api import EarthSatellite, Topos import skyfield.api sat =…
jeremy
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Satellite elevation angles negative

Until recently, the code I used to calculate the elevation and azimuth of a satellite from one particular site appeared to work. Then I used a different file from a site, not in the northern but in the southern hemisphere. The elevation angles…
pymat
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Ground longitude/latitude under a satellite (cartesian coordinates) at a specfic epoch

The script I'm wanting to develop uses the cartesian coordinates (XYZ) from a satellite, and in conjunction with the range, elevation and azimuth from a location, I then take a satellite’s orbital information and get the ground longitude/latitude…
pymat
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Embedding Sat Nav into a web system

I've been looking into embedding sat nav into a web system that can be used on the ipad, but not as an IOS app. It would be a web system with login. I've found plenty of options that will give me a map with markers at the start and destination…
Michael Wilson
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azure-maps-control StyleOptions interface is not style?: string its style?:vector

I am using azure-maps-control with npm, and I can not switch my map to satellite view, as in my npm package its shows in the StyleOptions interface style? Vector instead of style? string. Can you please guide me how can pass 'satellite' value to…
chintan p
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Optimizing Fly Overs in STK 10

I'm trying to do the math to find the the orbit which will fly over the greatest amount Observatories anywhere in the world. in STK 10, I'm plotting as many observatories as I can and then seeing which ones I hit - a tedious process. I'm not sure…
Bryce Edwards
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GPS - Compute travel time satellite-receiver

I'm working with a MATLAB Software-defined Radio, and I need to compute the travel time of the satellite signal, in order to get the pseudo range of the receiver (the direct distance between the satellite and the receiver position) before compute…
Pep
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Arduino doesn't control a stepper as it should

So I have decided to make a simple satellite tracker. I'm using Orbitron as my tracking software. It has a built-in DDE server so I can connect to it through java. So I wrote a small app in java that connects and reads the data about the satellite…
Tadej Gašparovič
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How to Rotate SatelliteMenu 180° and place it on top|right of screen in FrameLayout

I have tried using the .setRotation but this makes my application crash, can some let me know on how I can solve this issue below is the code xml
George J
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C# - Extracting satellite two line elements from a text file

I'm very new to c# and programming in general so I apologise if this doesn't make sense... I need to be able to search a textbox or combobox to read a notepad file containing many satellite two line element codes. The text file is set out like…
Gareth Moore
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