EKRAN 11 (14377)

COSPAR: 1983-100A | Alt Name: Ekran

Image

Additional Sources

Launch Details

Launch Date

September 29, 1983

Launch Site

Tyuratam Missile and Space Complex

Launch Pad

LC200/40

Launch Vehicle

Proton-K/DM

Orbital Elements

NORAD ID

14377

International Designator

1983-100A

Epoch

Fri, 03 Jul 2026 18:45:32 GMT

Apogee

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Perigee

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Inclination

7.74°

Right Ascension

304.44°

Eccentricity

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Argument of Perigee

329.72°

Period

1436.24 min

Mean Motion

1.00 rev/day

Latitude

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Longitude

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Altitude

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Velocity

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Polar Plot

3D Visualization

Basic Satellite Info

Name

EKRAN 11

Alternative Name

Ekran

Type

Payload

Status

Non-operational

Owner

MSVYAZ

Country

USSR

Constellation

N/A

Related Satellites

Major Events

N/A

Latest TLEs

1 14377U 83100A   26184.78162768 -.00000302  00000-0  00000-0 0  9996

2 14377   7.7359 304.4357 0002107 329.7207  30.4180  1.00261560 47548

Source: Celestrak

Summary

EKRAN 11, also known as Ekran No. 25L, is a communication and direct broadcasting satellite that was launched on September 29, 1983, from the Tyuratam Space Center (TYMSC) using a Proton-K/DM launch vehicle from Launch Pad LC200/40. The satellite has a configuration known as KAUR-3 and is part of the Ekran bus series manufactured by NPOPM for MSVYAZ in the Soviet Union (SU). It measures 5.5 meters in length, with a diameter of 2.5 meters and a span of 9 meters. EKRAN 11 had a launch mass of 2000 kg and a dry mass of 1850 kg. Its equipment includes one (+1) UHF 200 W transponder and a C-band uplink, powered by two deployable solar arrays and batteries. The satellite is cylindrical in shape with two panels and a plate, has an RCS value of 1.2589, and its mission was intended to last for three years.

Physical Characteristics

Length

5.5

Diameter

2.5

Span

Dry Mass

1850

Launch Mass

2000

Shape

Cyl + 2 Pan + Plate

Radar Cross Section

1.2589

Visual Magnitude

Unknown

Color

Unknown

Material Composition

Unknown

Technical Details

Payload

Ekran No. 25L

Purpose

Communication, direct broadcasting

Mission

Communication, direct broadcasting

Manufacturer

NPOPM

Life Expectancy

3 years

Bus

Ekran

Configuration

KAUR-3

Motor

Unknown

Equipment

1 (+1) UHF 200 W transponder, C-band uplink

Power System

2 deployable solar arrays, batteries

ADCS

Unknown

Transmitter Frequency

Unknown

Map

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