juliensimon/ula-launches

ULA Launch Log

Credit: NASA

Part of a dataset collection on Hugging Face.

Dataset description

Complete United Launch Alliance (ULA) launch manifest — past and upcoming flights of Atlas V, Delta II, Delta IV, Delta IV Heavy, and Vulcan Centaur — sourced from The Space Devs Launch Library 2 API.

ULA is the Boeing-Lockheed Martin joint venture formed in 2006 to consolidate US national security space launches under a single EELV (Evolved Expendable Launch Vehicle) provider. For nearly a decade ULA enjoyed a monopoly on high-value national security payloads before SpaceX's Falcon 9 broke into the market. ULA retired its Delta family in favor of Vulcan Centaur, which flew its first flight in 2024 and is now ramping to take over both national security and commercial missions.

In the context of the Bezos-vs-Musk launch race, ULA is the decisive third party: Amazon has booked 38 Vulcan Centaur flights and 9 Atlas V flights to deploy its Project Kuiper broadband constellation, meaning ULA — not Blue Origin — is doing the bulk of the early Kuiper lift. This dataset enables direct cadence comparison with juliensimon/spacex-launches and juliensimon/blue-origin-launches, and is essential for understanding how Amazon is actually closing the gap with Starlink in orbit.

This dataset is suitable for tabular classification, time-series forecasting tasks.

Schema

Column	Type	Description	Sample	Null %
launch_id	str	The Space Devs UUID for the launch	8167b123-f8a2-4e2d-b014-89e8eb5d3177	0.0%
name	str	Launch display name (e.g. 'Atlas V 551 | Juno', 'Vulcan VC2S | USSF-106')	Atlas V 551 | New Horizons	0.0%
mission_name	str	Mission identifier or customer designation	New Horizons	7.1%
rocket	str	Launch vehicle configuration name (Atlas V, Delta IV, Delta IV Heavy, Delta II, Vulcan Centaur)	Atlas V 551	0.0%
net_utc	datetime64[us, UTC]	No Earlier Than launch time (UTC). For completed launches this is the actual liftoff time; for upcoming it is the target	2006-01-19 19:00:00+00:00	0.0%
window_start_utc	datetime64[us, UTC]	Start of the launch window (UTC)	2006-01-19 19:00:00+00:00	0.0%
window_end_utc	datetime64[us, UTC]	End of the launch window (UTC)	2006-01-19 19:00:00+00:00	0.0%
status	str	Launch status: 'Launch Successful', 'Launch Failure', 'Partial Failure', 'Go for Launch', 'To Be Determined', 'To Be Confirmed', etc.	Launch Successful	0.0%
status_abbrev	str	Short status code: 'Success', 'Failure', 'Go', 'TBD', 'TBC', 'Hold'	Success	0.0%
mission_type	str	Mission category (Communications, Earth Science, Navigation, Dedicated Rideshare, Planetary Science, etc.)	Robotic Exploration	7.1%
mission_description	str	Free-text description of the mission objective	New Horizons is an interplanetary spa...	7.1%
orbit	str	Target orbit abbreviation (LEO, GTO, GEO, TLI, HCO, etc.) where applicable	Solar Esc.	7.1%
pad_name	str	Launch pad name	Space Launch Complex 41	0.0%
pad_location	str	Launch complex / site name	Cape Canaveral SFS, FL, USA	0.0%
pad_country	str	Launch pad country code (USA, etc.)	USA	0.0%
pad_latitude	float64	Launch pad geodetic latitude (deg)	28.58341025	0.0%
pad_longitude	float64	Launch pad geodetic longitude (deg)	-80.58303644	0.0%
year	int64	Launch year (integer, derived from net_utc)	2006	0.0%

Quick stats

• 211 ULA launches (174 past, 37 upcoming)
• 100.0% success rate across completed missions
• Vehicles tracked: Atlas V 401: 38, Delta II: 30, Vulcan: 25, Atlas V 551: 23
• Primary launch provider for juliensimon/kuiper-fleet-data deployment

Usage

from datasets import load_dataset

ds = load_dataset("juliensimon/ula-launches", split="train")
df = ds.to_pandas()

from datasets import load_dataset

ula = load_dataset("juliensimon/ula-launches", split="train").to_pandas()
sx = load_dataset("juliensimon/spacex-launches", split="train").to_pandas()

# Head-to-head annual cadence (ULA vs SpaceX)
ula_year = ula.groupby("year").size().rename("ula")
print(ula_year.tail(10))

# Kuiper deployment flights only
kuiper = ula[ula["mission_description"].str.contains("Kuiper", na=False, case=False)]
print(kuiper[["net_utc", "rocket", "mission_name", "status"]].head(20))

Data source

https://ll.thespacedevs.com/2.2.0/launch/

Update schedule

Daily at 09:30 UTC via GitHub Actions

Related datasets

• juliensimon/spacex-launches

• juliensimon/blue-origin-launches

• juliensimon/space-launch-log

• juliensimon/kuiper-fleet-data

• juliensimon/launch-vehicles

• juliensimon/constellation-census

• juliensimon/gcat

• juliensimon/gcat-satcat

• juliensimon/launch-cost

If you find this dataset useful, please consider giving it a like on Hugging Face. It helps others discover it.

About the author

Created by Julien Simon — AI Operating Partner at Fortino Capital. Part of the Space Datasets collection.

Citation

@dataset{ula_launches,
  title = {ULA Launch Log},
  author = {juliensimon},
  year = {2026},
  url = {https://huggingface.co/datasets/juliensimon/ula-launches},
  publisher = {Hugging Face}
}

License

the-space-devs-terms