# OV1-20

> OV1-20 was one of nine spacecraft simultaneously placed into orbit from a single launch vehicle.

**Wikidata**: [Q113275115](https://www.wikidata.org/wiki/Q113275115)  
**Source**: https://4ort.xyz/entity/ov1-20

## Summary
OV1-20 is an artificial satellite (also cataloged as 05394 and SESP 70-2A) that was launched into orbit on 1971-08-07. It was one of nine spacecraft simultaneously placed into orbit from a single launch vehicle, using an Atlas E/F rocket from Vandenberg Space Launch Complex 2 East.

## Key Facts
- OV1-20 is an artificial satellite (instance_of: artificial satellite).
- Alternate identifiers: SCN 05394 and alias SESP 70-2A.
- COSPAR ID: 1971-067A.
- NSSDC ID: 1971-067A.
- Launch date: 1971-08-07.
- Launch site (start_point): Vandenberg Space Launch Complex 2 East.
- Launch vehicle: Atlas E/F.
- Notable mission characteristic: one of nine spacecraft simultaneously placed into orbit from a single launch vehicle.
- SCN value recorded as 05394 (reference: P248 Q6272367).

## FAQs
### Q: What is OV1-20?
A: OV1-20 is an artificial satellite launched on 1971-08-07. It is also identified as 05394 and SESP 70-2A.

### Q: When and where was OV1-20 launched?
A: OV1-20 was launched on 1971-08-07 from Vandenberg Space Launch Complex 2 East.

### Q: Which rocket placed OV1-20 into orbit?
A: OV1-20 was placed into orbit by an Atlas E/F launch vehicle.

### Q: Was OV1-20 launched alone?
A: No. OV1-20 was one of nine spacecraft simultaneously placed into orbit from a single launch vehicle.

### Q: What are OV1-20’s catalogue identifiers?
A: OV1-20’s COSPAR and NSSDC identifier is 1971-067A and its SCN is 05394.

## Why It Matters
OV1-20’s significance stems primarily from its role in a multi-spacecraft deployment: it was one of nine satellites placed into orbit at the same time from a single launch vehicle. That fact highlights an operational capability to carry and deploy multiple spacecraft on one launch, which is relevant for mission planning, cost efficiency, and constellation deployment strategies. The satellite’s launch on 1971-08-07 from Vandenberg Space Launch Complex 2 East using an Atlas E/F places it within the historical context of early 1970s American satellite operations. Its formal identifiers (COSPAR 1971-067A, NSSDC 1971-067A, SCN 05394) ensure it is tracked and referenced in satellite catalogs and archival records. While specific scientific or operational details about OV1-20’s onboard instruments or mission objectives are not provided in the source material, its documented launch profile and group deployment are the clear factual contributions to the historical record of satellite launches.

## Notable For
- Being one of nine spacecraft simultaneously placed into orbit from a single launch vehicle.
- Launched on 1971-08-07 from Vandenberg Space Launch Complex 2 East.
- Launched by an Atlas E/F rocket.
- Cataloged under COSPAR/NSSDC ID 1971-067A and SCN 05394.
- Also known by the alias SESP 70-2A.

## Body

### Overview
- Name: OV1-20.
- Instance of: artificial satellite.
- Aliases/alternate names: 05394, SESP 70-2A.
- SCN: 05394 (reference indicated: P248 Q6272367).

### Launch details
- Launch date: 1971-08-07.
- Launch vehicle: Atlas E/F.
- Launch site (start_point): Vandenberg Space Launch Complex 2 East.
- Group deployment: one of nine spacecraft simultaneously placed into orbit from a single launch vehicle.

### Identifiers and catalog entries
- COSPAR ID: 1971-067A.
- NSSDC ID: 1971-067A.
- SCN (spacecraft number): 05394.

### Mission information
- The provided source material identifies OV1-20 as an artificial satellite and records its launch and identifiers.
- No mission objectives, scientific instruments, operational lifetime, or orbital parameters are specified in the provided source material.

## References

1. Jonathan's Space Report