README.md

---
title: Hektor-Hohmann Transfer Orbit Dataset
license: apache-2.0
datasets:
- name: Hektor-Hohmann Transfer Orbit
  size: 52 columns
  rows: "~30,000"
tags:
- space
- orbital-mechanics
- synthetic-data
- foundation-model
size_categories: large
task_categories:
- time-series-forecasting
- other
---

# **Hektor-Hohmann Transfer Orbit Dataset Card**

**Author:** ATaylor  
**Contact:** [hf.co/taylor658](https://hf.co/taylor658)  
**License:** [Apache License 2.0](https://www.apache.org/licenses/LICENSE-2.0)  
**Rows:** ~30,000  

---

## **Dataset Summary**

This dataset contains a comprehensive set of synthetic data for an interplanetary mission to **624 Hektor**, modeled using a Type II Hohmann transfer orbit. It features:

- **LEO Departure** and heliocentric trajectory phases.
- **Jupiter gravity assist** flyby.
- **Electric propulsion** thrust arcs.
- Final insertion at 624 Hektor on **March 18, 2032**.

The dataset is ideal for machine learning tasks related to orbital mechanics, low-thrust mission optimization, and multi-body transfer simulation.

---

## **Mission Profile**

1. **LEO Departure**: Initial departure from Earth's orbit using electric propulsion.
2. **Heliocentric Transfer**: Transitioning into an interplanetary trajectory.
3. **Jupiter Gravity Assist**: Utilizing Jupiter’s gravity for a velocity boost.
4. **Arrival at 624 Hektor**: Final insertion burn at the target asteroid.

**Final Event**: **March 18, 2032**, orbit capture at 624 Hektor.

---

## **Dataset Columns**

### Key Orbital Mechanics Parameters:

1. **Timestamp_UTC**: Universal Coordinated Time for each record.
2. **Mission_Segment**: Categorized mission phase (e.g., "LEO Departure," "Jupiter Flyby").
3. **Central_Body**: The celestial body being orbited (Earth/Sun/Hektor).
4. **Orbital_Radius_km**: Current orbital distance from the central body.
5. **Semi_Major_Axis_km**: Semi-major axis of the elliptical orbit.
6. **Eccentricity**: Shape of the orbit (0 for circular, <1 for elliptical).
7. **Inclination_deg**: Orbital plane tilt relative to the ecliptic plane.
8. **True_Anomaly_deg**: Orbital position relative to the periapsis.
9. **Phase_Angle_deg**: Angular alignment between the spacecraft and target.
10. **Velocity_km_s**: Spacecraft velocity relative to the central body.

### Thrust and Propulsion Data:

11. **Thrust_Level_N**: Thrust output in Newtons.
12. **Propellant_Mass_kg**: Remaining propellant mass.
13. **Specific_Impulse_s**: Propulsion efficiency parameter.
14. **Engine_Power_kW**: Electric propulsion power.

### Gravity Assist Parameters:

15. **Jupiter_Encounter_DateTime_UTC**: Timestamp for Jupiter gravity assist.
16. **Closest_Approach_Dist_Jupiter_km**: Minimum distance to Jupiter.
17. **Inbound_Velocity_Rel_Jupiter_km_s**: Velocity approaching Jupiter.
18. **Outbound_Velocity_Rel_Jupiter_km_s**: Velocity after gravity assist.
19. **Gravity_Assist_DV_Eq_km_s**: Equivalent velocity gain from the assist.

### Arrival Data:

20. **Hektor_Encounter_DateTime_UTC**: Arrival time at 624 Hektor.
21. **Relative_Velocity_at_Hektor_km_s**: Velocity at 624 Hektor encounter.
22. **Capture_Insertion_DV_km_s**: Delta-V required for orbital capture.
23. **Final_Orbit_SMA_km**: Semi-major axis of the orbit around Hektor.
24. **Final_Orbit_Inclination_deg**: Inclination of the final orbit.

---

## **Intended Usage**

1. **Foundation Model Training**: Time-series or tabular input for a broad model (e.g., analyzing or predicting orbital mechanics states).
2. **Synthetic Orbital Data Exploration**: Demonstrating multi-body, low-thrust mission profiles.

**Disclaimer**: Values are not from real missions. They are randomly or linearly generated placeholders.

---

## **License & Citation**

**License:** [Apache 2.0](https://www.apache.org/licenses/LICENSE-2.0)

### Citation
```bibtex
@misc{hektor_hohmann_transfer_2024,
  title={{Hektor-Hohmann Transfer Orbit Dataset}},
  author={ATaylor},
  year={2024},
  note={Synthetic dataset for Jupiter-assisted transfer to 624 Hektor.},
  howpublished={Generated for research and simulation purposes.}
}
```

---