COSMOS 2115 (21029)

COSPAR: 1990-114B | Alt Name: Kosmos-2115

Image
COSMOS 2115 Satellite Image
Additional Sources
Launch Details

Launch Date

December 22, 1990

Launch Site

PLMSC

Launch Pad

LC32/2

Launch Vehicle

Tsiklon-3

Orbital Elements

NORAD ID

21029

International Designator

1990-114B

Epoch

Sat, 04 Jul 2026 00:34:24 GMT

Apogee

Calculating...

Perigee

Calculating...

Inclination

82.57°

Right Ascension

200.97°

Eccentricity

Calculating...

Argument of Perigee

146.86°

Period

113.97 min

Mean Motion

12.64 rev/day

Latitude

Calculating...

Longitude

Calculating...

Altitude

Calculating...

Velocity

Calculating...

Polar Plot
3D Visualization
Basic Satellite Info

Name

COSMOS 2115

Alternative Name

Kosmos-2115

Type

Payload

Status

Unknown

Owner

UNKS

Country

USSR

Constellation

N/A

Related Satellites

Major Events

N/A

Latest TLEs
1 21029U 90114B   26185.02389490  .00000000  00000-0 -60985-4 0  9999
2 21029  82.5662 200.9728 0004182 146.8577 241.2408 12.63533557638532

Source: Celestrak

Summary
COSMOS 2115, also known as Kosmos-2115, is a military communication satellite launched on December 22, 1990, from the PLMSC launch site using LC32/2 pad and Tsiklon-3 launch vehicle. It was manufactured by NPOPM in SU (Soviet Union) and has a Strela-3 payload. The satellite measures 1.6 meters in length with a diameter of 0.8 meters, spans 7 meters, and had a dry mass of 225 kilograms at launch. Its power source consists of solar cells and batteries, and it is equipped for military communication missions. The shape of the satellite is cylindrical with antennas, and its radar cross-section (RCS) is 1.0963 square meters.
Physical Characteristics

Length

1.6

Diameter

0.8

Span

7

Dry Mass

225

Launch Mass

225

Shape

Cyl + Ant

Radar Cross Section

1.0963

Visual Magnitude

Unknown

Color

Unknown

Material Composition

Unknown

Technical Details

Payload

Strela-3

Purpose

Military Communication

Mission

Military Communication

Manufacturer

NPOPM

Life Expectancy

Unknown

Bus

Strela-3

Configuration

Unknown

Motor

Unknown

Equipment

Unknown

Power System

Solar cells, batteries

ADCS

Unknown

Transmitter Frequency

Unknown

Map
This tool will help you track the satellite's position and predict its upcoming passes over your location. Simply input the coordinates or click the geolocation button to get started.
Next Pass
Azimuth Elevation Time (Local)
Start Azimuth
Max Elevation
Stop Azimuth
Time Until
Pass Duration

Satellite Articles

View All Posts »

Learn more about satellites and other related topics.

Space Brief 13 Nov 2024

Space Brief 13 Nov 2024

Today's focus spans critical developments in military space initiatives, strategic policy shifts, and modest steps in semiconductor advancements. Key developments include Rocket Lab's new U.S. Air Force contract, Sierra Space's progress in satellite programs, and potential policy changes under Trump's leadership.

Space Brief 13 Apr 2025

Space Brief 13 Apr 2025

SpaceX launches a doubleheader of satellites while Blue Origin prepares for a historic all-female spaceflight. Also, meet FORMOSAT-5 in our Satellite Spotlight.

Space Brief 31 Dec 2025

Space Brief 31 Dec 2025

Notable space events as the year closes: China's record orbital launches, Vandenberg's new launch site, Rocket Lab's achievements, and urgent MAVEN recovery efforts.

Space Brief 3 Sep 2025

Space Brief 3 Sep 2025

Today's Space Brief delves into NASA's lunar nuclear power initiative, a strategic Army data integration project, and a rare SpaceX Falcon booster launch. Also covered are significant advancements in military satellite technology and Navy unmanned surface vehicles.

Deep Space Advanced Radar Capability (DARC)

Deep Space Advanced Radar Capability (DARC)

How a groundbreaking radar network is transforming our ability to monitor threats in deep space while strengthening international security partnerships

X Report 25 Jan 2025

X Report 25 Jan 2025

SpaceX advances Starship infrastructure, President Trump considers closing the National Space Council, and 23 new Starlink satellites boost global connectivity.

Space Brief 25 Sep 2025

Space Brief 25 Sep 2025

Discover the latest developments in space defense, innovative satellite technologies, nuclear advancements in space travel, and strategic military updates.

€140M ESA Launcher Funding at Risk of Lapse | KeepTrack Space Brief

€140M ESA Launcher Funding at Risk of Lapse | KeepTrack Space Brief

Nearly €140 million in ESA launcher development funds faces forfeiture with no replacement mechanism. Europe's independent launch capacity under pressure as Arianespace struggles.