文件列表:

.ipynb_checkpoints/ (0, 2017-03-16)
.ipynb_checkpoints/Tutorial-checkpoint.ipynb (72, 2017-03-16)
.project (216, 2017-03-16)
LICENSE (1084, 2017-03-16)
Makefile (66, 2017-03-16)
Spacecraft_Testbed/ (0, 2017-03-16)
Spacecraft_Testbed/Body.py (14351, 2017-03-16)
Spacecraft_Testbed/Information/ (0, 2017-03-16)
Spacecraft_Testbed/Information/Celestial_Bodies/ (0, 2017-03-16)
Spacecraft_Testbed/Information/Celestial_Bodies/Earth/ (0, 2017-03-16)
Spacecraft_Testbed/Information/Celestial_Bodies/Earth/Satellites/ (0, 2017-03-16)
Spacecraft_Testbed/Information/Celestial_Bodies/Earth/Satellites/Orbital_Debris/ (0, 2017-03-16)
Spacecraft_Testbed/Information/Celestial_Bodies/Earth/Satellites/Orbital_Debris/Breeze/ (0, 2017-03-16)
Spacecraft_Testbed/Information/Celestial_Bodies/Earth/Satellites/Orbital_Debris/Breeze/Breeze.tle (3024, 2017-03-16)
Spacecraft_Testbed/Information/Celestial_Bodies/Earth/Satellites/Orbital_Debris/Cosmos_2251/ (0, 2017-03-16)
Spacecraft_Testbed/Information/Celestial_Bodies/Earth/Satellites/Orbital_Debris/Cosmos_2251/Cosmos.tle (177580, 2017-03-16)
Spacecraft_Testbed/Information/Celestial_Bodies/Earth/Satellites/Orbital_Debris/Cosmos_2251/cos_areas.txt (7461, 2017-03-16)
Spacecraft_Testbed/Information/Celestial_Bodies/Earth/Satellites/Orbital_Debris/Cosmos_2251/cos_weight_matrix.txt (3977245, 2017-03-16)
Spacecraft_Testbed/Information/Celestial_Bodies/Earth/Satellites/Orbital_Debris/Fengyun_1C/ (0, 2017-03-16)
Spacecraft_Testbed/Information/Celestial_Bodies/Earth/Satellites/Orbital_Debris/Fengyun_1C/Fengyun.tle (429912, 2017-03-16)
Spacecraft_Testbed/Information/Celestial_Bodies/Earth/Satellites/Orbital_Debris/Fengyun_1C/fen_areas.txt (21699, 2017-03-16)
Spacecraft_Testbed/Information/Celestial_Bodies/Earth/Satellites/Orbital_Debris/Iridium_33/ (0, 2017-03-16)
Spacecraft_Testbed/Information/Celestial_Bodies/Earth/Satellites/Orbital_Debris/Iridium_33/Iridium.tle (55944, 2017-03-16)
Spacecraft_Testbed/Information/Celestial_Bodies/Earth/Satellites/Orbital_Debris/Iridium_33/ir33_areas.txt (3247, 2017-03-16)
Spacecraft_Testbed/Information/Celestial_Bodies/Earth/Satellites/Orbital_Debris/Iridium_33/ir33_weight_matrix.txt (753535, 2017-03-16)
Spacecraft_Testbed/Information/Celestial_Bodies/Ephemerides/ (0, 2017-03-16)
Spacecraft_Testbed/Information/Celestial_Bodies/Planet_Information.txt (1603, 2017-03-16)
Spacecraft_Testbed/Information/Celestial_Bodies/Untitled Document~ (0, 2017-03-16)
Spacecraft_Testbed/Utilities.py (18256, 2017-03-16)
Spacecraft_Testbed/__init__.py (0, 2017-03-16)
Tutorial.ipynb (5381, 2017-03-16)
... ...

#Spacecraft Testbed [](https://gitter.im/CISprague/Spacecraft_Testbed?utm_source=badge&utm_medium=badge&utm_campaign=pr-badge&utm_content=badge) This package models both the geocentric and interplanetary environment with the aim to facilitate the testing and development of various types spacecraft guidance, navigation, and control schemes. ##It's as easy as this ```python #Import the necessary modules from context import Massive_Body #Instantiate Earth as a massive celestial object Earth = Celestial_Body('Earth') #Instantiate Mars as a massive celestial object Mars = Celestial_Body('Mars') #Instantiate the debris fragment as an orbital body Sat = Earth.Satellites.Fengyun_1C.Fengyun_1C_Deb_102 #Times at which to compute position and velocity times = [2457061.5, 2457062.5, 2457063.5, 2457064.5] #Compute the position and velocity of the debris #fragment with respect to the centre of Mars. p, v = Sat.Position_and_Velocity_WRT(Mars, times[0]) #Show results print('The position [km] and velocity [km/s] of') print('Fengyun_1C_Deb_102 with respect to the centre of Mars:') print('Position:'), p * 1e-3 print('Velocity: '), v * 1e-3 ``` ``` The position [km] and velocity [km/s] of Fengyun_1C_Deb_102 with respect to the centre of Mars: Position: [ -3.16064398e+08 4.67978840e+07 2.47605342e+07] Velocity: [-15.22992539 -49.26948181 -14.59125297] ```

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