# Sealaunch Demo
**Wikidata**: [Q18327689](https://www.wikidata.org/wiki/Q18327689)  
**Source**: https://4ort.xyz/entity/sealaunch-demo

## Summary
Sealaunch Demo is a spacecraft that was launched on 1999-03-28. It was launched by a Zenit-3SL rocket from the Odyssey launch platform and is catalogued with COSPAR ID 1999-014A and SCN 25661.

## Key Facts
- Sealaunch Demo is an instance of a spacecraft.
- Launch date: 1999-03-28.
- Launch vehicle: Zenit-3SL.
- Launch start point (platform): Odyssey.
- COSPAR ID: 1999-014A.
- SCN (satellite/catalog number): 25661.
- Significant event recorded: rocket launch at Odyssey on 1999-03-28.
- Google Knowledge Graph ID: /g/11b5v9gx04.
- Has a Wikipedia entry in Portuguese (wikipedia_languages: pt).
- Sitelink count: 1.

## FAQs
### Q: What is Sealaunch Demo?
A: Sealaunch Demo is a spacecraft that was launched on 1999-03-28. It is recorded with COSPAR ID 1999-014A and SCN 25661.

### Q: When and from where was Sealaunch Demo launched?
A: Sealaunch Demo was launched on 1999-03-28 from the Odyssey launch platform.

### Q: Which rocket launched Sealaunch Demo?
A: Sealaunch Demo was launched by a Zenit-3SL launch vehicle.

### Q: What identifiers are associated with Sealaunch Demo?
A: Sealaunch Demo’s identifiers include COSPAR ID 1999-014A, SCN 25661, and Google Knowledge Graph ID /g/11b5v9gx04.

## Why It Matters
Sealaunch Demo matters as a documented spacecraft launch that ties together a specific launch vehicle and a sea-based launch platform. The mission links the Zenit-3SL expendable carrier rocket with the Odyssey start point, providing an explicit example of that vehicle-platform combination in operation on 1999-03-28. Its catalog and registry identifiers (SCN 25661 and COSPAR ID 1999-014A) make it trackable in orbital object records and knowledge graphs. For researchers, historians, or data integrators cataloguing launches, Sealaunch Demo is a clear, citable data point demonstrating a rocket launch event from a named maritime platform. The existence of a Portuguese-language Wikipedia entry and a Google Knowledge Graph identifier indicate available public references and cross-references for further lookup and linkage in multilingual knowledge systems.

## Notable For
- Being launched by the Zenit-3SL launch vehicle.
- Being launched from the Odyssey platform (a maritime/start point listed for the mission).
- Having official registry identifiers: COSPAR ID 1999-014A and SCN 25661.
- Presence in knowledge systems (Google Knowledge Graph ID /g/11b5v9gx04) and a Portuguese Wikipedia entry.

## Body
### Overview
- Name: Sealaunch Demo.
- Instance type: spacecraft.
- Primary recorded event: rocket launch.

### Identifiers
- COSPAR ID: 1999-014A.
- SCN: 25661.
- Google Knowledge Graph ID: /g/11b5v9gx04.
- Wikipedia language presence: Portuguese (pt).
- Sitelink count: 1.

### Launch details
- Launch date: 1999-03-28.
- Significant event recorded: rocket launch, with point in time 1999-03-28 and location/qualifier Odyssey.
- Start point (launch platform): Odyssey.

### Launch vehicle
- Launch vehicle used: Zenit-3SL.
- Classification related: Zenit-3SL is an expendable carrier rocket class (related class listed in source material).

### Classification and relationships
- Instance of: spacecraft (class: vehicle or machine designed to fly in space).
- Related classes in source material include Zenit-3SL (expendable carrier rocket) and Zenit (rocket for launching satellites).

### References and links (from source data)
- Launch event and platform references indicated in source metadata (structured properties include P248 reference to Q6272367).
- COSPAR ID reference indicated by P143 to Q11921 in the provided structured properties.

## References

1. Jonathan's Space Report