Automated Trajectory Design Using Resonant Dynamics

Metadata Updated: May 2, 2019

The goal of this project is to map spacecraft transit routes through resonances. This will enable automated, on-board trajectory redesigns to allow for autonomous and safer missions. In particular, this will benefit high priority NASA missions such as a Europa and Outer Planet Moon orbiters as well as Manned Missions to small bodies as a stepping stone to Mars.

Current missions and future mission concepts such as Dawn and the various Europa orbiter proposals have indicated that resonant regions near small bodies and planetary moons exhibit fast acting orbital instabilities. This may prevent mission designers on Earth from having time to issue new commands. The availability of autonomous targeting methods related to these dynamics would provide a systematic means for taking advantage of resonant regions and mitigate the associated risk.

While spacecraft will not have the time or computational power to completely plan new trajectories from scratch, there is another method. We propose to create a database of key routes that will be organized using the language of symbolic dynamics. Advances in libration point dynamics have shown that transit orbits can be classified in this way and our intent is to extend this to other resonant regions. Finite automata and fast search techniques will be used to select a seed trajectory that accomplishes the necessary goal. This will then be differentially corrected to the exact conditions to yield an accurate path that will direct the spacecraft.

Access & Use Information

Public: This dataset is intended for public access and use. License: U.S. Government Work

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Metadata Created Date August 1, 2018
Metadata Updated Date May 2, 2019

Metadata Source

Harvested from NASA Data.json

Additional Metadata

Resource Type Dataset
Metadata Created Date August 1, 2018
Metadata Updated Date May 2, 2019
Publisher Space Technology Mission Directorate
Unique Identifier TECHPORT_4243
Maintainer Email
Public Access Level public
Bureau Code 026:00
Metadata Context
Metadata Catalog ID
Schema Version
Catalog Describedby
Datagov Dedupe Retained 20190501230127
Harvest Object Id fbbbd1cf-19d8-42d0-8502-df8910191b40
Harvest Source Id 39e4ad2a-47ca-4507-8258-852babd0fd99
Harvest Source Title NASA Data.json
Data First Published 2015-08-01
Homepage URL
Data Last Modified 2018-07-19
Program Code 026:027
Source Datajson Identifier True
Source Hash 113d88a4f8bfbcb34ff3de5d24b4845588202820
Source Schema Version 1.1

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