# Kosmos 2533

> Russian communications satellite

**Wikidata**: [Q60847825](https://www.wikidata.org/wiki/Q60847825)  
**Source**: https://4ort.xyz/entity/kosmos-2533

## Summary
Kosmos 2533 is a Russian military communications satellite that was launched on 21 December 2018 as part of the Blagovest constellation. Operating from geostationary orbit, it provides secure communications services for the Russian Ministry of Defense.

## Key Facts
- Launched on 21 December 2018 at 00:20 UTC from Baikonur Cosmodrome Site 81/24
- Part of the Blagovest military satellite communications system
- Built by JSC Information Satellite Systems Reshetnev using the Ekspress-2000 spacecraft bus
- Launched aboard a Proton-M rocket with Briz-M upper stage
- Positioned in geostationary orbit
- Also known as Blagovest 3, Blagovest 13L, and Cosmos 2533
- Satellite catalog number: 43867
- COSPAR ID: 2018-107A
- Followed Kosmos 2526 and preceded Kosmos 2539 in the Blagovest series

## FAQs
### Q: What is the primary mission of Kosmos 2533?
A: Kosmos 2533 is a military communications satellite designed to provide secure telecommunications services for the Russian Ministry of Defense as part of the Blagovest constellation.

### Q: When and where was Kosmos 2533 launched?
A: Kosmos 2533 was launched on 21 December 2018 at 00:20 UTC from Baikonur Cosmodrome Site 81/24 in Kazakhstan.

### Q: What type of orbit does Kosmos 2533 operate in?
A: Kosmos 2533 operates in geostationary orbit, maintaining a fixed position relative to Earth's surface for consistent communications coverage.

### Q: What launch vehicle was used for Kosmos 2533?
A: The satellite was launched aboard a Proton-M rocket with a Briz-M upper stage.

## Why It Matters
Kosmos 2533 represents a critical component of Russia's military communications infrastructure. As part of the Blagovest constellation, it provides secure, high-capacity communications services for the Russian armed forces, enabling reliable command and control capabilities. The satellite's geostationary position ensures continuous coverage of Russian territory and areas of military interest. The Blagovest system, including Kosmos 2533, marked a significant modernization of Russia's military satellite communications, replacing older systems with more advanced technology. This enhancement in secure military communications capability is essential for modern military operations, allowing for encrypted voice, data, and video transmissions that are crucial for national defense and military coordination.

## Notable For
- Third satellite in the Blagovest military communications constellation
- One of the first new-generation Russian military communications satellites in geostationary orbit
- Built on the proven Ekspress-2000 satellite bus platform
- Launched using the reliable Proton-M heavy-lift launch vehicle
- Part of Russia's effort to modernize its military satellite communications infrastructure

## Body
### Overview
Kosmos 2533 is a Russian military communications satellite that serves as part of the Blagovest constellation. The satellite was developed to provide secure communications capabilities for the Russian Ministry of Defense, replacing aging Soviet-era communications systems with modern technology.

### Technical Specifications
The satellite is based on the Ekspress-2000 spacecraft bus, a proven platform developed by JSC Information Satellite Systems Reshetnev. This platform provides the necessary power, attitude control, and communications capabilities for the satellite's mission. The spacecraft bus has been used in various Russian communications satellites, demonstrating reliability in geostationary orbit operations.

### Launch and Operations
Kosmos 2533 was launched on 21 December 2018 at 00:20 UTC from Baikonur Cosmodrome Site 81/24. The launch vehicle was a Proton-M rocket with a Briz-M upper stage, both of which are part of Russia's heavy-lift launch capabilities. The Proton-M is a four-stage rocket capable of delivering payloads to geostationary orbit, while the Briz-M serves as the upper stage for precise orbital insertion.

### Mission Role
As part of the Blagovest constellation, Kosmos 2533 provides secure military communications services. The satellite operates in geostationary orbit, maintaining a fixed position relative to Earth's surface. This positioning allows for continuous communications coverage and eliminates the need for tracking antennas on the ground. The Blagovest system is designed to provide high-capacity communications for the Russian military, supporting various types of traffic including voice, data, and video transmissions.

## Schema Markup
```json
{
  "@context": "https://schema.org",
  "@type": "Satellite",
  "name": "Kosmos 2533",
  "alternateName": ["Cosmos 2533", "Blagovest 3", "Blagovest 13L", "Blagovest No. 13L"],
  "description": "Russian military communications satellite launched in 2018 as part of the Blagovest constellation",
  "sameAs": ["https://www.wikidata.org/wiki/Q65088409"],
  "additionalType": ["Military Satellite", "Communications Satellite", "Geostationary Satellite"],
  "countryOfOrigin": "Russia",
  "manufacturer": "JSC Information Satellite Systems Reshetnev",
  "launchDate": "2018-12-21",
  "orbitType": "Geostationary"
}

## References

1. [Source](https://space.skyrocket.de/doc_sdat/blagovest-1.htm)
2. Jonathan's Space Report