# Cosmos 345
**Wikidata**: [Q12753811](https://www.wikidata.org/wiki/Q12753811)  
**Source**: https://4ort.xyz/entity/cosmos-345

## Summary
Cosmos 345 (also Kosmos 345) was a Soviet Zenit-4 reconnaissance satellite launched on 1970-05-20. It was placed into flight by a Voskhod launch vehicle from Baikonur Cosmodrome Site 31.

## Key Facts
- Cosmos 345 is an instance of the Zenit-4 class of Soviet reconnaissance satellites.
- Alternate name: Kosmos 345.
- COSPAR ID: 1970-039A.
- SCN (catalog) value: 04403.
- Launch date: 1970-05-20.
- Launch time (recorded event): 09:20:01 on 1970-05-20.
- Launch site: Baikonur Cosmodrome Site 31.
- Launch vehicle: Voskhod.
- Wolfram Language entity code: Entity["Satellite", "04403"].
- Wikipedia language entries exist in: Hungarian (hu), Macedonian (mk), Serbo-Croatian / Serbo-Croat (sh), and Serbian (sr).

## FAQs
### Q: What is Cosmos 345?
A: Cosmos 345 was a Zenit-4 class Soviet reconnaissance satellite, launched and designated with the COSPAR ID 1970-039A.

### Q: When and where was Cosmos 345 launched?
A: Cosmos 345 was launched on 1970-05-20 from Baikonur Cosmodrome Site 31; a recorded launch event lists the time as 09:20:01 on that date.

### Q: What launch vehicle placed Cosmos 345 in flight?
A: The satellite was launched by a Voskhod launch vehicle.

### Q: How is Cosmos 345 identified in catalogs?
A: It is identified by SCN 04403 and COSPAR ID 1970-039A and is indexed as Entity["Satellite", "04403"] in the Wolfram Language.

## Why It Matters
Cosmos 345 is a documented element of the Soviet Zenit-4 reconnaissance satellite program. As a Zenit-4 satellite, it represents a class of spacecraft assigned to reconnaissance roles within Soviet space activities. Its launch from Baikonur Cosmodrome Site 31 using a Voskhod launch vehicle demonstrates operational use of Soviet launch infrastructure and vehicle families in 1970. The recorded identifiers (COSPAR 1970-039A and SCN 04403) and the presence of entries in multiple Wikipedia language editions and the Wolfram Language index show that Cosmos 345 is a recorded and cataloged asset within historical satellite records. For researchers tracking Cold War-era reconnaissance platforms, launch vehicle usage, or catalog cross-references, Cosmos 345 provides a concrete data point linking the Zenit-4 satellite class, the Voskhod launcher, and Baikonur Site 31 on a specific launch date and time.

## Notable For
- Being an instance of the Zenit-4 class of Soviet reconnaissance satellites.
- Launch on 1970-05-20 with COSPAR ID 1970-039A and catalog number SCN 04403.
- Lifted by a Voskhod launch vehicle from Baikonur Cosmodrome Site 31.
- Recorded launch event time: 09:20:01 on 1970-05-20.
- Indexed in the Wolfram Language as Entity["Satellite", "04403"] and represented in multiple Wikipedia language editions (hu, mk, sh, sr).

## Body
### Classification and Role
- Instance of: Zenit-4 class.
- Role implied by class: reconnaissance satellite (Zenit-4 — Soviet reconnaissance satellites).

### Identifiers
- COSPAR ID: 1970-039A.
- SCN / catalog value: 04403.
- Alias: Kosmos 345.
- Wolfram Language entity: Entity["Satellite", "04403"].
- Wikipedia language coverage: hu, mk, sh, sr.

### Launch details
- Launch date: 1970-05-20.
- Recorded launch event time: 09:20:01 (qualified with the launch site and date).
- Launch site (start point): Baikonur Cosmodrome Site 31.
- Launch vehicle: Voskhod.

### Programmatic context
- Related class: Zenit-4 — identified as Soviet reconnaissance satellites.
- Launch vehicle family: Voskhod — used as the launch vehicle for this mission.

### Recorded event
- Significant event: rocket launch.
- Event qualifiers: location Baikonur Cosmodrome Site 31; time 09:20:01; date 1970-05-20.

### Presence in datasets
- Appears in structured catalogs (SCN 04403) and in the Wolfram Language index.
- Multiple Wikipedia language entries indicate cross-lingual documentation (hu, mk, sh, sr).

## References

1. Jonathan's Space Report