ITF_SatTracker

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Overview

Read TLE(Tow Line Elements) and caluculate a position of a satellite.

Description

This software caluculates a position(latitude & longitude) of a satellite. In addition, this software show us how we see the satellite from ground. Data source is NASA Tow Line Elements(TLE). This format includes satellite's orbital elements.

Requirements

• Python 3.5 or 3.6
• sgp4 package
• numpy package

You can install sgp4 and numpy package with pip.

#use pip or pip3(according to your environment)
pip3 install sgp4
pip3 install numpy

Usage

fromconvertimportsat2ecef, deg2ecef, calcTg, sat2directionfromsgp4.ioimporttwoline2rvfromsgp4.earth_gravityimportwgs84fromdatetimeimportdatetime, timezonefromtimeimportsleepline1='1 41932U 98067KU 17317.56946614 .00017631 00000-0 17996-3 0 9992'line2='2 41932 051.6402 002.0561 0004752 087.9238 272.2302 15.65153909046886'satellite=twoline2rv(line1, line2, wgs84)
observeTime=datetime.now(timezone.utc)
position, velocity=satellite.propagate(observeTime.year, observeTime.month, observeTime.date, observeTime.hour, observeTime.minute, observeTime.second)
Tg=calcTg(observeTime) satECEF=sat2ecef(position, Tg)
result=sat2direction([36,140,30], satECEF)
print(observeTime.strftime("%c")+" Azimuth:"+str(result[0]) +" Elevation:"+str(result[1]))
sleep(1.0)

Output example

Wed Nov 15 09:19:47 2017 Azimuth:333.319747494 Elevation:-68.9659189319