CL_gm_eclipseCir

Description

• Computes various ress that characterize the portion of the orbit path where the satellite is in the shadow of the planet.

• Notes:

  This function is actually an interface to CL_gm_eclipse, which is called with zero values for eccentricity and argument of periapsis).

  See CL_gm_eclipse for more details.

Parameters

sma:

Semi major axis [m] (1xN)

inc:

Inclination [rad] (1xN)

raan:

Right ascension of ascending node [rad] (1xN)

alpha_sun:

Sun right ascension [rad] (1xN)

delta_sun:

Sun declination [rad] (1xN)

er:

(optional) Equatorial radius [m] (default is %CL_eqRad)

mu:

(optional) Gravitational constant [m^3/s^2] (default value is %CL_mu)

res:

(structure) Various quantities that define the eclipse [rad,sec] (each field is 1xN)

Authors

• CNES - DCT/SB

See also

• CL_gm_eclipse

• CL_gm_betaEclipse

Examples

cjd = CL_dat_cal2cjd(2009,03,21,6,0,0); pos_sun = CL_eph_sun(cjd); pos_sun_sph = CL_co_car2sph(pos_sun); alpha_sun = pos_sun_sph(1); delta_sun = pos_sun_sph(2); raan = 0; sma = 7300.e3; inc = CL_deg2rad(98); res = CL_gm_eclipseCir(sma,inc,raan,alpha_sun,delta_sun); res.start res.end res.sun_orb res.angle res.duration