# Cosmos 1736
**Wikidata**: [Q12907482](https://www.wikidata.org/wiki/Q12907482)  
**Source**: https://4ort.xyz/entity/cosmos-1736

## Summary
Cosmos 1736 was a Soviet nuclear-powered surveillance satellite launched on March 21, 1986. Designated as part of the US-A series, it was deployed into orbit using a Tsyklon-2 launch vehicle from the Baikonur Cosmodrome. It is identified internationally by the COSPAR ID 1986-024A.

## Key Facts
- **Classification:** Cosmos 1736 is an instance of the US-A satellite class, a series of Soviet nuclear-powered surveillance satellites.
- **Launch Date:** The satellite was launched on March 21, 1986.
- **Launch Vehicle:** It was deployed using a Tsyklon-2 expendable launch vehicle.
- **Launch Site:** The launch originated from Baikonur Cosmodrome Site 90.
- **COSPAR ID:** Its international satellite identifier is 1986-024A.
- **Satellite Catalog Number:** It holds the catalog number 16647.
- **Significant Event:** The rocket launch occurred precisely at 10:05:00 on March 21, 1986.
- **Aliases:** The satellite is also known as Kosmos 1736.

## FAQs
### Q: What type of satellite was Cosmos 1736?
A: Cosmos 1736 was a Soviet surveillance satellite belonging to the US-A series. This class of satellites is notable for being nuclear-powered.

### Q: When was Cosmos 1736 launched?
A: The satellite was launched on March 21, 1986, at 10:05:00.

### Q: What rocket was used to launch Cosmos 1736?
A: The satellite was launched aboard a Tsyklon-2 rocket, a Soviet/Ukrainian expendable launch vehicle, from the Baikonur Cosmodrome Site 90.

## Why It Matters
Cosmos 1736 represents a specific mission within the broader Soviet "Cosmos" program, which assigned numerical designations to a wide array of Soviet satellites. Its primary significance lies in its classification as a US-A satellite. The US-A series (Upravlyaemy Sputnik Aktivny) is historically significant for utilizing nuclear reactors (specifically BES-5) as power sources for radar surveillance capabilities, allowing the satellites to track maritime targets, particularly US Navy vessels, regardless of daylight or cloud cover.

The launch of Cosmos 1736 demonstrates the operational continuity of the Soviet military space program in the mid-1980s. It highlights the reliance on the Baikonur Cosmodrome Site 90 and the Tsyklon-2 launch vehicle for deploying these specific heavy, nuclear-powered payloads. Accurate documentation of this entity helps space historians and analysts track the timeline of nuclear-powered space systems, a category of spacecraft that has drawn significant international attention regarding safety and space debris management.

## Notable For
- **Nuclear Power Source:** Being a member of the US-A series, distinct for its use of nuclear power for space-based radar.
- **Specific Launch Infrastructure:** Utilizing Baikonur Cosmodrome Site 90, a key facility for this satellite class.
- **Precise Launch Timing:** Recording a specific launch time of 10:05:00, allowing for precise orbital tracking history.
- **Tsyklon-2 Payload:** Serving as a payload for the Tsyklon-2, a prominent Soviet/Ukrainian launch vehicle.

## Body
### Classification and Identity
Cosmos 1736 is officially classified as an instance of the **US-A** satellite series. The US-A series is characterized as a Soviet nuclear-powered surveillance satellite program. The satellite carries the alias **Kosmos 1736** and is tracked under the **Satellite Catalog Number (SCN) 16647**. Its international designator, assigned by the Committee on Space Research (COSPAR), is **1986-024A**.

### Launch Details
The satellite's mission began with a **rocket launch** on **March 21, 1986**. The specific time of the launch event was recorded as **10:05:00**.
*   **Launch Vehicle:** The satellite was propelled into orbit by a **Tsyklon-2**, an expendable launch vehicle developed by the Soviet Union and Ukraine.
*   **Launch Site:** The launch took place at **Baikonur Cosmodrome Site 90**, a specific launch complex used for these missions.

### Data and Tracking References
The satellite is indexed in multiple data repositories:
*   **Google Knowledge Graph ID:** /g/120p550g
*   **Wolfram Language Entity Code:** Entity["Satellite", "16647"]
*   **Wikipedia Presence:** The satellite has documented sitelinks in Hungarian (hu), Macedonian (mk), Serbo-Croatian (sh), and Serbian (sr).

## References

1. Jonathan's Space Report