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  :alt: Tests\n    :target: https://app.travis-ci.com/galactics/beyond\n\n.. image:: https://coveralls.io/repos/github/galactics/beyond/badge.svg?branch=master\n    :alt: Coverage Status\n    :target: https://coveralls.io/github/galactics/beyond?branch=master\n\n.. image:: https://img.shields.io/pypi/v/beyond.svg\n    :alt: PyPi version\n    :target: https://pypi.python.org/pypi/beyond\n\n.. image:: https://img.shields.io/pypi/pyversions/beyond.svg\n    :alt: Python versions\n    :target: https://pypi.python.org/pypi/beyond\n\n.. image:: https://img.shields.io/badge/code%20style-black-000000.svg\n    :target: https://github.com/psf/black\n\nThis library was started to better understand how Flight Dynamics works. It\nhas no intent of efficiency nor performance at the moment, and the goal is\nmainly to develop a simple API for space observations.\n\nThe sources of this library can be found at `github \u003chttps://github.com/galactics/beyond\u003e`__ and\nare under the MIT license.\n\nInstallation\n------------\n\nBeyond requires Python 3.7+, numpy and `sgp4 \u003chttps://github.com/brandon-rhodes/python-sgp4\u003e`__.\nTo install the library and its dependencies use pip\n\n.. code-block:: shell\n\n    pip install beyond\n\nDocumentation\n-------------\n\n  * `Last release \u003chttp://beyond.readthedocs.io/en/stable/\u003e`__ (stable)\n  * `Dev \u003chttp://beyond.readthedocs.io/en/latest/\u003e`__ (latest)\n\nUsage\n-----\n\n.. code-block:: python\n\n    import numpy as np\n    from beyond.io.tle import Tle\n    from beyond.frames import create_station\n    from beyond.dates import Date, timedelta\n\n\n    # Parse TLE\n    tle = Tle(\"\"\"ISS (ZARYA)\n    1 25544U 98067A   19072.15347313  .00000167  00000-0  10147-4 0  9997\n    2 25544  51.6420 118.6717 0004098  99.2855 123.2259 15.52799885160336\"\"\")\n\n    # Create a station from which to compute the pass\n    station = create_station('KSC', (28.524058, -80.65085, 0.0))\n\n    for orb in station.visibility(tle.orbit(), start=Date.now(), stop=timedelta(days=1), step=timedelta(minutes=2), events=True):\n\n        # As all angles are given in radians,\n        # there is some conversion to do\n        azim = -np.degrees(orb.theta) % 360\n        elev = np.degrees(orb.phi)\n        r = orb.r / 1000.\n\n        print(\"{event:10} {tle.name}  {date:%Y-%m-%dT%H:%M:%S.%f} {azim:7.2f} {elev:7.2f} {r:10.2f}\".format(\n            date=orb.date, r=r, azim=azim, elev=elev,\n            tle=tle, event=orb.event if orb.event is not None else \"\"\n        ))\n\n        # Stop at the end of the first pass\n        if orb.event and orb.event.info == \"LOS\":\n            break\n\nThis library is used as basis for the `Space-Command \u003chttps://github.com/galactics/space-command\u003e`__ utility.\n\nCommons usages for this library are:\n\n  * `Predicting of satellite visibility \u003chttp://beyond.readthedocs.io/en/stable//examples.html#station-pointings\u003e`__\n  * `Computing satellite ground track \u003chttp://beyond.readthedocs.io/en/stable//examples.html#ground-track\u003e`__\n  * `Computing planets visibility \u003chttp://beyond.readthedocs.io/en/stable//examples.html#jupiter-and-its-moons\u003e`__\n\nReferences\n----------\n\nA lot of the formulas and flight dynamic algorithm are based on Vallado's\n*Fundamentals of Astrodynamic and Applications* 4th ed.\n","project_url":"https://awesome.ecosyste.ms/api/v1/projects/github.com%2Fgalactics%2Fbeyond","html_url":"https://awesome.ecosyste.ms/projects/github.com%2Fgalactics%2Fbeyond","lists_url":"https://awesome.ecosyste.ms/api/v1/projects/github.com%2Fgalactics%2Fbeyond/lists"}