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Sources

[1]CelesTrak (opens in new tab)orbital elements
[2]GCAT / J. McDowell (opens in new tab)launch catalog
[3]Wikidata (opens in new tab)metadata enrichment
[4]SatNOGS DB (opens in new tab)radio transmitters (CC BY-SA 4.0)

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OrbitalWiki / open database / ODbL-1.0Orbital data is approximate and not for operations

Catalog Operators Showcases Method Developers Pricing

Index/Search/66687

SSOOperationalPayload

LEO EXPRESS 3

NORAD 66687COSPAR 2025-276XEpoch Oct 21, 2026

LEO EXPRESS 3 is a payload in SSO orbit, launched 2025.

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Country

UnknownUnknown

source unknown

Launch date

2025-11-28Probable

via CelesTrak SATCAT

Object class

PAYLOADProbable

via CelesTrak SATCAT

Operational status

OPERATIONALProbable

via CelesTrak SATCAT

Launch site

Not availableUnknown

source unknown

Launch vehicle

Not availableUnknown

source unknown

Not available in the current data

· Alternate names
· Launch mass or form factor
· Constellation membership

Data quality

Quality60 / 100

Related satellites

WISDOM ASame launch
LEMUR-2-STAS-GORBUKSame launch
AC1-003Same launch
AE5RASame orbit class
TRANSPORTER-15 OBJECT AASame orbit class

Where this record sits

Everything in SSO

It went up on launch 2025-276, alongside everything else on that flight

See it moving on the 3D globe alongside every other active object, propagated in your browser.

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Use this data

Every field on this page is available as JSON, with the same sources and confidence attached.

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//Orbital data is approximate and not for operational use. Last ingested from CelesTrak on Oct 22, 2026.

OrbitalWiki

Open satellite records with source claims attached. Use the UI for lookup or the API for products, research, and internal tools.

Footer

Explore

Browse everything
Compare satellites
Constellations
Countries
Index
Live 3D globe
Operators
Showcases
Today

Statistics

How many satellites are in orbit right now?
How many satellites are launched each year?
How many satellites still work?
How many Starlink satellites are there?
Statistics
What is the oldest satellite still in orbit?
What orbits are satellites in?
Which countries operate the most satellites?
Which operators run the most satellites?

Radio

Amateur radio
Pass predictions
What you need to receive

Learn

Articles
Education
Glossary
Method
Sources

Build

API keys
API playground
API stability policy
Cite the data
Compare data sources
Datasets
Download the dataset
Embeddable widgets
Licensing helper
Quickstart

Create

Data stories
Missions
Story Studio
Submit a mission

Product

About
Affiliate program
Change feed
Changelog
Coverage
Launches
Orbital events
Pricing
Roadmap
Status

Account

Contact
Dashboard
Log in
Preferences
Sign up

Sources

[1]CelesTrak (opens in new tab)orbital elements
[2]GCAT / J. McDowell (opens in new tab)launch catalog
[3]Wikidata (opens in new tab)metadata enrichment

LEO EXPRESS 3, NORAD 66687 orbital data · OrbitalWiki

[4]

SatNOGS DB (opens in new tab)radio transmitters (CC BY-SA 4.0)

Legal

Privacy Terms Cookies Accessibility License

OrbitalWiki / open database / ODbL-1.0Orbital data is approximate and not for operations