# Explorer 19

> NASA satellite

**Wikidata**: [Q49877](https://www.wikidata.org/wiki/Q49877)  
**Wikipedia**: [English](https://en.wikipedia.org/wiki/Explorer_19)  
**Source**: https://4ort.xyz/entity/explorer-19

## Summary
Explorer 19 is a NASA Earth observation satellite launched on 1963-12-19. It was placed into orbit from Vandenberg Space Launch Complex 5 using a Scout X-4 launch vehicle and is cataloged under COSPAR ID 1963-053A.

## Key Facts
- Explorer 19 is an Earth observation satellite (artificial satellite designed to observe Earth from orbit).
- Operator/affiliation: NASA (described as a "NASA satellite").
- Launch date: 1963-12-19.
- Launch site (start point): Vandenberg Space Launch Complex 5.
- Launch vehicle: Scout X-4.
- COSPAR ID: 1963-053A.
- Satellite catalog number (SCN): 00714.
- Wikimedia Commons image: https://commons.wikimedia.org/wiki/Special:FilePath/Explorer_19_-_01.jpg (caption: "Visão esquemática do Explorer 19").
- Wikipedia title: Explorer 19; available in 7 linked languages (commons, en, es, gl, it, pl, pt).
- Google Knowledge Graph ID: /g/121slh55.

## FAQs
### Q: What is Explorer 19?
A: Explorer 19 is a NASA Earth observation satellite. It was launched to operate as an artificial satellite observing Earth from orbit.

### Q: When and where was Explorer 19 launched?
A: Explorer 19 was launched on 1963-12-19 from Vandenberg Space Launch Complex 5.

### Q: What rocket launched Explorer 19?
A: Explorer 19 was launched on a Scout X-4 launch vehicle.

### Q: How is Explorer 19 identified in catalogues?
A: Explorer 19 is cataloged with COSPAR ID 1963-053A and has satellite catalog number (SCN) 00714.

## Why It Matters
Explorer 19 is part of the class of Earth observation satellites whose purpose is to observe Earth from orbit. As a NASA satellite launched in 1963, it represents a piece of early space-based Earth observation activity. Earth observation satellites provide unique, sustained vantage points for monitoring planetary conditions and phenomena that cannot be measured from the ground alone. Explorer 19’s launch from Vandenberg on a Scout X-4 places it within the context of U.S. small-launch and scientific-satellite efforts of the early 1960s. The satellite’s formal identifiers (COSPAR ID 1963-053A and SCN 00714) and archival media (Commons image) make it a documented element of historical satellite records and referenceable in research, cataloging, and public collections.

## Notable For
- Being an expressly designated Earth observation satellite operated by NASA.
- Launch date of 1963-12-19, placing it in the early era of space-based Earth observation.
- Launch from Vandenberg Space Launch Complex 5.
- Use of the Scout X-4 launch vehicle.
- Cataloged under COSPAR ID 1963-053A and SCN 00714.

## Body
### Overview
- Name: Explorer 19.
- Description: NASA satellite categorized as an Earth observation satellite.
- Wikipedia title: Explorer 19.
- Commons category: Explorer 19.

### Classification and purpose
- Instance of: Earth observation satellite.
- Definition (class context): Artificial satellite specifically designed to observe Earth from orbit.

### Launch details
- Launch date: 1963-12-19.
- Launch site (start point): Vandenberg Space Launch Complex 5.
- Launch vehicle: Scout X-4.
- Significant event recorded: rocket launch at Vandenberg Space Launch Complex 5 on 1963-12-19.

### Identifiers and cataloguing
- COSPAR ID: 1963-053A.
- Satellite catalog number (SCN): 00714.
- Google Knowledge Graph ID: /g/121slh55.

### Media and references
- Image file (Commons): https://commons.wikimedia.org/wiki/Special:FilePath/Explorer_19_-_01.jpg.
- Image qualifier/caption: "Visão esquemática do Explorer 19".
- Wikidata description: NASA satellite.
- Wikipedia sitelink count: 7 (languages: commons, en, es, gl, it, pl, pt).

## References

1. Jonathan's Space Report