# Kosmos 1783

> Soviet US-K missile early warning satellite

**Wikidata**: [Q3398201](https://www.wikidata.org/wiki/Q3398201)  
**Wikipedia**: [English](https://en.wikipedia.org/wiki/Kosmos_1783)  
**Source**: https://4ort.xyz/entity/kosmos-1783

## Summary
Kosmos 1783 was a Soviet missile early warning satellite launched on October 3, 1986. It was a member of the US-K series, a class of satellites designed to detect the launch of ballistic missiles.

## Key Facts
- **Classification:** US-K series early warning satellite
- **Launch Date:** October 3, 1986
- **Launch Vehicle:** Molniya-M rocket
- **Launch Site:** Plesetsk Cosmodrome Site 41
- **Launch Time:** 13:05:41
- **Country of Origin:** Soviet Union
- **COSPAR ID:** 1986-075A
- **Satellite Catalog Number (SCN):** 16993
- **Instance Of:** US-K class satellite

## FAQs
### Q: What was the primary purpose of Kosmos 1783?
A: Kosmos 1783 was designed as a missile early warning satellite. It was part of the Soviet US-K program, which focused on detecting ballistic missile launches to provide strategic defense data.

### Q: When and where was Kosmos 1783 launched?
A: The satellite was launched on October 3, 1986, at 13:05:41 UTC. The launch took place from Site 41 at the Plesetsk Cosmodrome in the Soviet Union.

### Q: What type of rocket was used to deploy Kosmos 1783?
A: Kosmos 1783 was launched into space using a Molniya-M space launcher rocket, which was a standard vehicle for this class of Soviet military satellites.

## Why It Matters
Kosmos 1783 was a vital element of the Soviet Union's US-K series, a specialized class of satellites dedicated to missile early warning. During the mid-1980s, maintaining a functional constellation of these satellites was essential for the Soviet Union's strategic defense, as they provided the primary means of detecting ballistic missile launches from space. The mission utilized the Molniya-M launch vehicle, a significant Soviet space launcher rocket, and was deployed from the Plesetsk Cosmodrome Site 41. This satellite's operation was part of a broader effort to ensure constant surveillance and early detection capabilities, which were fundamental to the geopolitical stability and military readiness of the era. Its presence in the SCN and COSPAR registries underscores its role as a documented piece of Soviet aerospace history, contributing to the overall US-K program's objective of monitoring global missile activity.

## Notable For
- **US-K Series Membership:** Part of the specific series of Soviet and Russian early warning satellites.
- **Strategic Launch Site:** Deployed from Plesetsk Cosmodrome Site 41, a key location for Soviet military space missions.
- **Molniya-M Launcher:** Utilized the Molniya-M rocket, a notable Soviet space launcher with 11 recorded sitelinks in historical databases.
- **International Identification:** Tracked under COSPAR ID 1986-075A and SCN 16993.

## Body

### Mission and Classification
Kosmos 1783 is an instance of the **US-K class** of satellites. The US-K series (also known as Oko) was developed by the Soviet Union to provide space-based early warning capabilities. These satellites were specifically designed to identify the thermal signatures of ballistic missile plumes shortly after launch.

### Launch Operations
The satellite was launched on **October 3, 1986**. The launch was precisely timed at **13:05:41**. The operation was conducted at the **Plesetsk Cosmodrome**, specifically utilizing **Site 41**. The delivery of the satellite into orbit was performed by the **Molniya-M** launch vehicle, a rocket class frequently used for high-altitude and highly elliptical orbits.

### Technical Identifiers
Kosmos 1783 is documented across several international and academic databases:
- **COSPAR ID:** 1986-075A
- **Satellite Catalog Number (SCN):** 16993
- **Freebase ID:** /m/0jwvlrw
- **Wolfram Language Entity Code:** Entity["Satellite", "16993"]
- **Wikipedia Presence:** The entity is documented in English, Macedonian, Serbo-Croatian, and Serbian languages.

## References

1. Jonathan's Space Report