PropagatorType

class ansys.stk.core.stkobjects.PropagatorType

IntEnum

Overview

Members

UNKNOWN	Unknown propagator (all vehicles).
HPOP	High Precision Orbit Propagator (satellites and missiles): handles circular, elliptical, parabolic and hyperbolic orbits at distances ranging from the surface of the Earth to the orbit of the Moon and beyond.
J2_PERTURBATION	J2 Perturbation (1st-order) (satellites): accounts for secular variations in the orbit elements due to Earth oblateness, but does not model atmospheric drag or solar or lunar gravitational forces.
J4_PERTURBATION	J4 Perburbation (2nd order) (satellites): accounts for secular variations in orbit elements due to Earth oblateness, but doesn’t model atmos. drag or solar or lunar grav. forces. Includes 1st and 2nd order effects of J2 and 1st order effects of J4.
LOP	Long-term Orbit Propagator (satellites): allows accurate prediction of the motion of a satellite’s orbit over many months or years.
SGP4	SGP4 (satellites): a standard AFSPACECOM propagator used with two-line mean element (TLE) sets.
SPICE	SPICE (satellites): reads ephemeris from binary files that are in a standard format produced by the Jet Propulsion Laboratory (JPL).
STK_EXTERNAL	STK external (all vehicles): allows you to read the ephemeris for a satellite from a file.
TWO_BODY	Two Body(Keplerian motion) propagator (satellites and missiles): considers only the force of gravity from the Earth, which is modeled as a point mass.
USER_EXTERNAL	User-External propagator.
GREAT_ARC	Great Arc (aircraft, ships and ground vehicles): defines a point-by-point path over the surface of the Earth with position and altitude defined at each point.
BALLISTIC	Ballistic (missiles): defines vehicles following an elliptical path that begins and ends at the Earth’s surface.
SIMPLE_ASCENT	Simple Ascent (launch vehicles): creates an ascent trajectory based on launch and insertion parameters.
ASTROGATOR	Astrogator propagator.
REAL_TIME	Realtime propagator.
GPS	GPS propagator.
AVIATOR	Aviator propagator.
PROPAGATOR_11_PARAMETERS	The 11-Parameter propagator models geostationary satellites using 11-Parameter files. The propagator uses an algorithm documented in Intelsat Earth Station Standards (IESS) IESS-412 (Rev. 2), available at www.celestrak.com.
SP3	The SP3 propagator reads .sp3 files of type ‘a’ and ‘c’ and allows you to use multiple files in sequence. These files are used to provide precise GPS orbits from the National Geodetic Survey (NGS).

Import detail

from ansys.stk.core.stkobjects import PropagatorType