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  • The basic idea...

    "The basic idea behind open source is very simple. When programmers on the Internet can read, redistribute, and modify the source for a piece of software, it evolves. People improve it, people adapt it, people fix bugs. And this can happen at a speed that, if one is used to the slow pace of conventional software development, seems astonishing...
    ...The Open Source pages exist to make this case to the commercial world."    - Introduction to Open Source -

    Details: DroidSat

    market download DroidSat
    DroidSat is a real-time satellite tracker.

    Point your handset at the sky and see which satellites are there.

    Droidsat is for advanced users who want to use their own TLEs or work offline.
    Novice users may prefer Space junk or Satellite AR which are more user friendly.

    Key features of DroidSat:

    - after satellite files have been downloaded, no network connection is required.
    - ability to load your own satellite TLE files.
    - highly configurable display settings can minimize CPU use and save power.
    - fast forward and orbital path display to show future satellite positions.

    Enable GPS location and your internet connection before starting it for the first time.

    Menu functions:
    menu->choose tles - select the category of satellite to display (stations.txt for ISS, visual.txt for the brightest satellites, tle-new.txt for recent launches)
    menu->playback speed - speed up display by a factor of 10, 30 or 60.
    menu->updated tles - update the satellite database. Do this once a week, or after new satellite launches.
    menu->preferences - change your display properties (colours, etc.)

    You may also copy your own TLE files to

    Further instructions are available at

    DroidSat is GPL. Source code available at

    DroidSat uses Horst Meyerdierks' Sputnik 3.1 java program for satellite position calculations.
    Satellite orbital data is downloaded from the, and Mike McCants' websites.
    Latest update uses MyLocation class from Fedor on

    Recent changes:
    Added supplemental TLE files from celestrak - derived directly from owner/operator-supplied orbital data: GPS, GLONASS, METEOSAT, SES and ORBCOMM

    Content rating: Low Maturity

    Author: DroidSat
    Version: 2.53
    Market link: com.mkf.droidsat
    Web site:

    Source code:
    Code license:
    Market downloads: 50,000-250,000
    Market rating: 3.7 / 5.0
    Category: Top:/Applications/Books & Reference

    Added: 2010-05-10
    Updated: 2014-11-24
    Hits: 1271

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