SNAP is a NASA developed high-fidelity n-body trajectory propagation
program for interplanetary spacecraft. SNAP takes into consideration
the following forces: central body gravitational force field with spherical
harmonics (degree and order are user specified), gravitational forces
from other solar system bodies, solar radiation pressure, atmospheric drag
and spacecraft thrust (finite or impulsive burns can be modeled).
Integration is accomplished via a Runge-Kutta 7/8 integrator with automatic step
size control. The JPL Digital Ephemerides (DE) to compute the state
of solar systems bodies are used. SNAP is written in FORTRAN and has replaced
the heritage GRC NBODY program.
SNAP is currently undergoing extensive revision and is unavailable.
Publications: This site makes available documents in Adobe Portable Document Format (PDF).
To view them you will need to have the Adobe Acrobat Reader plug-in.
|
About Us |
Contact Us |
Projects |
Tools |
Tutorials |
SED |
ETSD |
NASA Glenn |
NASA |
plug-in.
