# Intelsat 21

> communications satellite

**Wikidata**: [Q1357291](https://www.wikidata.org/wiki/Q1357291)  
**Wikipedia**: [English](https://en.wikipedia.org/wiki/Intelsat_21)  
**Source**: https://4ort.xyz/entity/intelsat-21

## Summary
Intelsat 21 is a communications satellite operated by Intelsat. It was launched on 2012-08-19 aboard a Zenit-3SL rocket from the Odyssey launch platform and operates in geostationary orbit.

## Key Facts
- Operator: Intelsat.
- Type: Communications satellite (instance_of: communications satellite).
- Launch date: 2012-08-19.
- Launch vehicle: Zenit-3SL.
- Launch start point: Odyssey.
- Orbit: Geostationary orbit.
- COSPAR ID: 2012-045A.
- SCN (catalog number): 38749.
- Freebase ID: /m/07k9w0x (publication date: 2013-10-28).
- Wikipedia coverage: articles in de, en, es, id, lv, pt, ru (sitelink_count: 7).
- Described at: https://www.lyngsat.com/Intelsat-21.html (English; noted 2023-10-02).

## FAQs
### Q: What is Intelsat 21?
A: Intelsat 21 is a geostationary communications satellite operated by Intelsat, classified as a communications satellite.

### Q: When and how was Intelsat 21 launched?
A: Intelsat 21 was launched on 2012-08-19 aboard a Zenit-3SL launch vehicle from the Odyssey launch platform.

### Q: What identifiers are used for Intelsat 21?
A: Intelsat 21's COSPAR ID is 2012-045A and its SCN (catalog number) is 38749. It also has Freebase ID /m/07k9w0x.

### Q: Where can I find more technical or channel listing information about Intelsat 21?
A: A descriptive page for Intelsat 21 is available at LyngSat: https://www.lyngsat.com/Intelsat-21.html.

## Why It Matters
Intelsat 21 is part of the Intelsat fleet of communications satellites, and its placement in geostationary orbit enables continuous, fixed-position telecommunications capabilities from that orbital slot. As a geostationary communications satellite launched and operated by a major commercial satellite operator, Intelsat 21 contributes to the infrastructure used for broadcasting, data links, and other telecommunications services that rely on satellites remaining fixed relative to the Earth’s surface. Its specific launch on 2012-08-19 via a Zenit-3SL rocket from the Odyssey platform is a concrete instance of commercial satellite deployment methods. The satellite’s catalog and registry identifiers (COSPAR ID 2012-045A; SCN 38749) allow it to be tracked and referenced in international space object catalogues. Public listings and documentation, such as the LyngSat page and multiple Wikipedia-language entries, reflect its role within Intelsat’s operational constellation and provide sources for channel or configuration listings maintained outside core registry records.

## Notable For
- Being launched on 2012-08-19 aboard a Zenit-3SL launch vehicle.
- Launch start point recorded as Odyssey.
- Operating in geostationary orbit as an Intelsat-operated communications satellite.
- Registered under COSPAR ID 2012-045A and catalog number 38749.
- Documented across multiple public references, including a LyngSat page and Wikipedia articles in seven languages.

## Body

### Overview
- Name: Intelsat 21.
- Class: Communications satellite.
- Operator: Intelsat.
- Primary function: Telecommunications (as implied by its classification as a communications satellite).

### Launch
- Launch date: 2012-08-19.
- Launch vehicle: Zenit-3SL.
- Launch start point: Odyssey.
- Significant event recorded: rocket launch from Odyssey on 2012-08-19.

### Orbit and Operational Status
- Orbital regime: Geostationary orbit.
- Operational implication: Positioned to provide fixed-location services consistent with geostationary operation (fact: satellite_of = geostationary orbit).

### Identifiers and Catalog Entries
- COSPAR ID: 2012-045A.
- SCN (catalog number): 38749.
- Freebase ID: /m/07k9w0x (noted publication date: 2013-10-28).
- Wolfram Language entity code: Entity["Satellite", "38749"].

### Public References and Documentation
- Described at LyngSat: https://www.lyngsat.com/Intelsat-21.html (English; referenced 2023-10-02).
- Wikipedia coverage: available in German (de), English (en), Spanish (es), Indonesian (id), Latvian (lv), Portuguese (pt), and Russian (ru).

### Classification Links
- Instance of communications satellite.
- Launch vehicle class referenced: Zenit-3SL (an expendable carrier rocket class).

(End of entry.)

## References

1. Jonathan's Space Report
2. Freebase Data Dumps. 2013