Low-thrust Roundtrip trajectories
Published in Journals, 2021
This database stores low-thrust roundtrip missions to NEAs. The generation of this database used our advanced deep learning low-thrust transfer cost approximation technique, which replace the conventional optimization process. The estimation of low thrust transfer cost is as fast as solving a Lambert problem. The search process is based on grid search.
Database Summary
| Item | Description |
|---|---|
| Recorded asteroid number | 24,149 NEAs were searched, 1,684 NEAs (7%) are confirmed to be round trip accessible |
| Number of roundtrip trajectories | 695,511,547 |
| File Format | .MAT |
| File Size | 30 GB |
| Precision | double-precision floating-point |
| Columns |
Statistics
Methodology
DNN – Classifier
- Input: Classifier features, such as initial mass, time of flight, etc.
- Output: Two classes, representing feasible and infeasible Transfers
- Prediction Accuracy: ~ 98%
DNN - Regressor
- Input: Regressor features, such as initial mass, time of flight, etc.
- Output: Single value of the predicted spacecraft final mass
- Prediction Mean Relative Error: < 1%
Download Link
The link will be released later. Contact: ruida.space@gmail.com