juliensimon/artemis-ii

Artemis II Mission Data

Part of the Space Probe & Mission Datasets collection on Hugging Face.

Comprehensive dataset for NASA's Artemis II mission — the first crewed flight beyond low Earth orbit since Apollo 17 (1972). Covers the ~10-day crewed lunar flyby aboard the Orion spacecraft Integrity, launched April 1, 2026 on SLS Block 1.

Configs

This dataset has four configs (tables):

Config	Records	Description
trajectory	1,284	State vectors at 10-min intervals (position, velocity, distances)
timeline	47	Mission events from terminal countdown through splashdown
crew	4	Crew manifest with biographical data
payloads	8	CubeSats and onboard experiments

Trajectory schema

Geocentric J2000 ecliptic state vectors from JPL Horizons (spacecraft ID -1024).

Column	Type	Description
epoch_tdb	datetime	Epoch in Barycentric Dynamical Time (TDB)
x_km	float	Geocentric X position (km, J2000 ecliptic)
y_km	float	Geocentric Y position (km)
z_km	float	Geocentric Z position (km)
vx_km_s	float	X velocity (km/s)
vy_km_s	float	Y velocity (km/s)
vz_km_s	float	Z velocity (km/s)
distance_earth_km	float	Distance from Earth center (km)
speed_km_s	float	Orbital speed (km/s)
distance_moon_km	float	Distance from Moon center (km)
mission_phase	string	Phase: earth_orbit, transit_outbound, lunar_approach, lunar_flyby, transit_return, entry

Quick stats

• 1,284 trajectory vectors (2026-04-02 02:00 to 2026-04-10 23:50 TDB)
• Maximum distance from Earth: 413,147 km (256772 statute miles)
• Closest lunar approach: 8,288 km at 2026-04-06 23:00 TDB
• Maximum speed: 10.57 km/s (38068 km/h)
• Crew: 4 (3 NASA + 1 CSA) — first crewed mission beyond LEO in 54 years
• CubeSats: 4 secondary payloads from Germany, South Korea, Saudi Arabia, Argentina

Usage

from datasets import load_dataset

# Trajectory data (default config)
ds = load_dataset("juliensimon/artemis-ii", split="train")
df = ds.to_pandas()

# Plot distance from Moon over time
import matplotlib.pyplot as plt
plt.figure(figsize=(12, 4))
plt.plot(df["epoch_tdb"], df["distance_moon_km"])
plt.xlabel("Time (TDB)")
plt.ylabel("Distance from Moon (km)")
plt.title("Artemis II — Distance to Moon")
plt.tight_layout()
plt.show()

# Find closest lunar approach
idx = df["distance_moon_km"].idxmin()
print(f"Closest approach: {df.loc[idx, 'distance_moon_km']:,.0f} km at {df.loc[idx, 'epoch_tdb']}")

# Load other configs
crew = load_dataset("juliensimon/artemis-ii", "crew", split="train").to_pandas()
timeline = load_dataset("juliensimon/artemis-ii", "timeline", split="train").to_pandas()
payloads = load_dataset("juliensimon/artemis-ii", "payloads", split="train").to_pandas()

Data source

• Trajectory: JPL Horizons — spacecraft -1024 ("Integrity Orion EM-2"), geocentric and selenocentric vectors
• Timeline & crew: NASA Artemis II Press Kit and launch blog
• Payload data: NASA, DLR, KARI, KACST, CONAE public announcements

Update schedule

Updated during the mission as JPL Horizons trajectory data is refined. Will switch to as-flown ephemeris after splashdown.

Related datasets

• space-track-tle-history — Orbital element history for tracked objects
• donki-space-weather-events — Space weather events (relevant for crew radiation exposure)
• dst-index — Geomagnetic storm index

Pipeline

Source code: juliensimon/space-datasets

Support

If you find this dataset useful, please give it a ❤️ on the dataset page and share feedback in the Community tab! Also consider giving a ⭐️ to the space-datasets repo.

Citation

@dataset{artemis_ii,
  author = {Simon, Julien},
  title = {Artemis II Mission Data},
  year = {2026},
  publisher = {Hugging Face},
  url = {https://huggingface.co/datasets/juliensimon/artemis-ii},
  note = {Trajectory from JPL Horizons; mission data from NASA press kit}
}

License

CC-BY-4.0