# Cosmos 1784
**Wikidata**: [Q12753450](https://www.wikidata.org/wiki/Q12753450)  
**Source**: https://4ort.xyz/entity/cosmos-1784

## Summary
Cosmos 1784 (also written Kosmos 1784) is a Soviet Yantar-1KFT class spy satellite launched on 1986-10-06. It was placed into flight using a Soyuz-U rocket from the Gagarin's Start launch pad.

## Key Facts
- Cosmos 1784 is an instance of the Yantar-1KFT class, a Soviet spy satellite type.  
- COSPAR ID: 1986-077A.  
- Satellite catalog number (SCN): 17003.  
- Launch date: 1986-10-06.  
- Launch vehicle: Soyuz-U (a Soyuz rocket design variant, Universal).  
- Launch site / start point: Gagarin's Start.  
- Recorded significant event: rocket launch on 1986-10-06 at 07:40:00 from Gagarin's Start.  
- Alias: Kosmos 1784.  
- Mapped in Wolfram Language as Entity["Satellite","17003"].  
- Wikipedia coverage exists in Macedonian (mk), Serbo-Croatian (sh), and Serbian (sr).

## FAQs
### Q: What is Cosmos 1784?
A: Cosmos 1784 is a Soviet Yantar-1KFT class spy satellite launched on 6 October 1986. It is cataloged under COSPAR ID 1986-077A and SCN 17003.

### Q: When and where was Cosmos 1784 launched?
A: It was launched on 1986-10-06 from the Gagarin's Start launch pad. The recorded launch time is 07:40:00 on that date.

### Q: What rocket launched Cosmos 1784?
A: Cosmos 1784 was launched aboard a Soyuz-U launch vehicle, a Universal variant of the Soyuz rocket family.

### Q: Does Cosmos 1784 have other names or identifiers?
A: Yes. It is also known as Kosmos 1784, has COSPAR ID 1986-077A, and satellite catalog number 17003. It is represented in the Wolfram Language as Entity["Satellite","17003"].

## Why It Matters
Cosmos 1784 is a documented example of the Soviet Yantar-1KFT reconnaissance satellite program. As a Yantar-1KFT class “spy satellite,” it represents a category of spacecraft used by the Soviet Union for intelligence and imaging missions during its operational period. The satellite’s launch details — using a Soyuz-U vehicle from Gagarin’s Start on 1986-10-06 at 07:40:00 — tie it directly to established Soviet launch infrastructure and vehicle families. These factual identifiers (COSPAR 1986-077A, SCN 17003) enable researchers and catalogers to track the mission in international satellite registries and computational knowledge systems (for example, Wolfram Language mapping). The presence of articles in multiple language Wikipedias indicates some public and historical interest. In short, Cosmos 1784 is relevant to studies of Cold War-era space reconnaissance, Soviet launch operations, and the cataloging of historical satellite missions.

## Notable For
- Being an instance of the Yantar-1KFT class, identified as a Soviet spy satellite.  
- Launch on 1986-10-06 from the historic Gagarin's Start pad.  
- Use of the Soyuz-U launch vehicle, a Universal variant of the Soyuz design.  
- Having clear international identifiers: COSPAR ID 1986-077A and SCN 17003.  
- Representation in computational knowledge systems (Wolfram Language Entity["Satellite","17003"]).

## Body
### Overview
- Official name: Cosmos 1784 (alias Kosmos 1784).  
- Class/type: Yantar-1KFT (Soviet spy satellite class).  
- Purpose (class-level): reconnaissance/spying (as indicated by the Yantar-1KFT classification).

### Identifiers and Cataloguing
- COSPAR ID: 1986-077A.  
- Satellite catalog number (SCN): 17003.  
- Wolfram Language entity code: Entity["Satellite","17003"].  
- Wikipedia language coverage: mk, sh, sr.

### Launch Details
- Launch date: 1986-10-06.  
- Significant event recorded: rocket launch at 07:40:00 on 1986-10-06.  
- Launch site / start point: Gagarin's Start.  
- Launch vehicle: Soyuz-U (Soyuz rocket design variant — Universal).

### Classification and Program Context
- Instance of the Yantar-1KFT class.  
- Yantar-1KFT is described in the source material as a Soviet spy satellite class.  

### Sourceable Records
- All properties and events above are recorded with references to the same data source identifiers used in the provided material (e.g., SCN, COSPAR, launch metadata).

## References

1. Jonathan's Space Report