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+# -*- coding: cp1252 -*-%0A%22%22%22%0A## AstroConstants.py%0A# ------------------------- #%0A# Description:%0A# Declare Astrodynamics constants%0A# According to WGS84.%0A# ------------------------- #%0A# Created by: Ashiv Dhondea, RRSG, UCT.%0A# Date created: 20 June 2016%0A# Edits: %0A22.07.2016: edited some constants%0A02.03.2017: added the speed of light%0A26.05.2017: added the Boltzmann constant. %0A%22%22%22%0A# ------------------------- #%0Aimport math%0Aimport numpy as np%0A%0A# ------------------------- #%0Amu_E = 398600.4418;# Earth%E2%80%99s gravitational parameter %5Bkm%5E3/s%5E2%5D%0A%0AR_E = 6378.1366;# Earth equatorial radius %5Bkm%5D %0A%0Atheta_dot = 7.29211585530066e-5;# %5Brad/s%5D%0A%0AJ_2 = 1.082626925638815e-3;# %5B%5D %0A%0AR_polar = 6356752.3142e-3;# Earth polar radius %5Bkm%5D%0Aflattening = 0.0033528106718309896;%0Aflattening_inverse = 298.2572229328697;%0A%0A# ---------------------------------------------------------------------------- #%0Ac = 299792458.*1.e-3; # %5Bkm/s%5D%0A# --------------------------------------------------------------------------- #%0Aboltzmann_constant = 1.38064852e-23; # %5Bwatt sec/K%5D%0A

Create AstroConstants.py