Test usage:
python va2014.py [--mu=398600.4418] [ChiefStateECI DeputyStateECI]
- State in ECI is six-element vector: X; Y; Z; Xdot; Ydot; Zdot.
"""
import os
import sys
import math
import numpy
from scipy.special import ellipeinc as E
import SpiceyPy as sp
halfpi = sp.halfpi()
twopi = sp.twopi()
dpr = sp.dpr()
### Indices: ECI (xyz); RSW (rsw); SEZ; R,RA,DEC (from sp.recrad(...))
iX, iY, iZ = \
iRrsw, iSrsw, iW = \
iSsez, iE, iZsez = \
iRadius, iRA, iDEC = \
iReq, iAeq, iZeq = \
xrange(3)
########################################################################
class VA2014:
