G-TAG is a software tool for the multibody
simulation of a spacecraft with a
robotic arm and a sampling mechanism,
which performs a touch-and-go (TAG)
maneuver for sampling from the surface
of a small celestial body. G-TAG utilizes
G- DYN, a multi-body simulation engine
described in the previous article, and
interfaces to controllers, estimators, and
environmental forces that affect the
spacecraft. G-TAG can easily be adapted
for the analysis of the mission stress
cases to support the design of a TAG system,
as well as for comprehensive Monte
Carlo simulations to analyze and evaluate
a particular TAG system design.
Any future small-body mission will benefit from using G-TAG, which has already been extensively used in Comet Odyssey and Galahad Asteroid New Frontiers proposals.
This work was done by Behcet Acikmese,
James C. Blackmore, and Milan Mandic of
Caltech for NASA’s Jet Propulsion Laboratory.
This Brief includes a Technical Support Package (TSP).
Multibody Simulation Software Testbed for Small-Body Exploration and Sampling (reference NPO-47196) is currently available for download from the TSP library.
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