COSMOS 2099 (20779)

COSPAR: 1990-080A | Alt Name: Kosmos-2099
DECAYED

Image
COSMOS 2099 Satellite Image
Additional Sources
Launch Details

Launch Date

August 31, 1990

Launch Site

PLMSC

Launch Pad

LC43/4

Launch Vehicle

Soyuz-U

Orbital Elements

NORAD ID

20779

International Designator

1990-080A

Decay Date

9/14/1990

Basic Satellite Info

Name

COSMOS 2099

Alternative Name

Kosmos-2099

Type

Payload

Status

Decayed

Owner

UNKS

Country

USSR

Constellation

N/A

Related Satellites

Major Events

N/A

Summary
COSMOS 2099 (also known as Kosmos-2099) is a reconnaissance satellite launched on August 31, 1990, from the Plesetsk launch site using Soyuz-U as the launch vehicle. It was manufactured by TSSKB and has a configuration based on the Zenit bus with an Oblik payload designated No. 815. The satellite has dimensions of 6 meters in length and diameter of 2.2 meters, with a span also measuring 6 meters. Its dry mass is 2655 kilograms, which is the same as its launch mass. It uses batteries for power supply and has a surface area (RCS) of 9.71 square meters. The mission purpose was reconnaissance with a photo return capability using film, making it part of a film-return type satellite system. The motor used includes 11D82M and S5.120 maneuver module for adjustments in orbit.
Physical Characteristics

Length

6

Diameter

2.2

Span

6

Dry Mass

2655

Launch Mass

2655

Shape

Sphere + DCone

Radar Cross Section

9.71

Visual Magnitude

Unknown

Color

Unknown

Material Composition

Unknown

Technical Details

Payload

Oblik No. 815

Purpose

Reconnaissance, photo (film return type)

Mission

Reconnaissance, photo (film return type)

Manufacturer

TSSKB

Life Expectancy

Unknown

Bus

Oblik

Configuration

Zenit bus

Motor

11D82M; S5.120 (maneuver module)

Equipment

Unknown

Power System

Batteries

ADCS

Unknown

Transmitter Frequency

Unknown

Satellite Articles

View All Posts »

Learn more about satellites and other related topics.

X Report 15 Apr 2025

X Report 15 Apr 2025

SpaceX sets a new rocket-reuse record and prepares for upcoming launches, maintaining the momentum in Starlink satellite deployments.

SpaceX IPO Surges 20% on First Day of Trading | KeepTrack X Report

SpaceX IPO Surges 20% on First Day of Trading | KeepTrack X Report

SpaceX shares jumped nearly 20% in its historic public debut, valuing the company partly on Starlink's AI infrastructure potential with 10,636 satellites working.

X Report 10 Dec 2024

X Report 10 Dec 2024

SpaceX gears up for a busy launch schedule with multiple missions, while its Starship program progresses with a successful Super Heavy test. Meanwhile, NASA's Artemis 2 faces delays, highlighting SpaceX's ongoing momentum in the space sector.

Space Brief 1 May 2025

Space Brief 1 May 2025

Today's space brief covers NASA's shift to private companies for astronaut rescue, EU's potential collaboration with SES for satellite services, and notable military contract allocations. Plus, a satellite spotlight on LEMUR-2-KADI.

Space Brief 28 Feb 2025

Space Brief 28 Feb 2025

Today's brief covers defense industry dynamics, advancements in quantum sensor technology, and geopolitical challenges impacting military space operations.

X Report 9 Aug 2025

X Report 9 Aug 2025

SpaceX's Crew-10 astronauts are set to return to Earth after a five-month mission, while the company prepares for the launch of 24 new Starlink satellites from Vandenberg Space Force Base.

X Report 29 Aug 2025

X Report 29 Aug 2025

SpaceX celebrates a record-breaking Falcon 9 launch while Starship demonstrates strong performance in its recent test flight, fueling excitement for upcoming projects.

Blue Origin's New Glenn Destroyed in Hotfire Anomaly | KeepTrack Space Brief

Blue Origin's New Glenn Destroyed in Hotfire Anomaly | KeepTrack Space Brief

Blue Origin lost New Glenn during static fire testing at Launch Complex 36. Vehicle sustained serious damage in anomaly. NASA Artemis timeline impacts possible.