COSMOS 1661 (15827)

COSPAR: 1985-049A | Alt Name: Kosmos-1661

Image
COSMOS 1661 Satellite Image
Additional Sources
Launch Details

Launch Date

June 18, 1985

Launch Site

PLMSC

Launch Pad

LC16/2

Launch Vehicle

Molniya 8K78M

Orbital Elements

NORAD ID

15827

International Designator

1985-049A

Epoch

Fri, 03 Jul 2026 15:42:26 GMT

Apogee

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Perigee

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Inclination

67.79°

Right Ascension

107.45°

Eccentricity

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Argument of Perigee

61.37°

Period

717.58 min

Mean Motion

2.01 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

COSMOS 1661

Alternative Name

Kosmos-1661

Type

Payload

Status

Unknown

Owner

PVO

Country

USSR

Constellation

N/A

Related Satellites

Major Events

N/A

Latest TLEs
1 15827U 85049A   26184.65447356 -.00000801  00000-0  00000-0 0  9990
2 15827  67.7854 107.4535 5870257  61.3716 344.9161  2.00675799300629

Source: Celestrak

Summary
COSMOS 1661, also known as Kosmos-1661, is an early warning satellite launched on June 18, 1985, from the PLMSC launch site using a Molniya 8K78M launch vehicle. The spacecraft measures 4 meters in length and has a diameter of 2 meters with a span of 5 meters. It carries an Oko early warning payload designated as 63D6 No. 5012, with a dry mass of 1,150 kg and a launch mass of 1,250 kg. The satellite is powered by two deployable fixed solar arrays and batteries. Its shape consists of a cylinder with two panels (Cyl + 2 Pan) and it has an RCS of 6.977. It was manufactured by NPOL/KOMET for the PVO and its purpose is to provide early warning capabilities as part of the Oko system.
Physical Characteristics

Length

4

Diameter

2

Span

5

Dry Mass

1150

Launch Mass

1250

Shape

Cyl + 2 Pan

Radar Cross Section

6.977

Visual Magnitude

Unknown

Color

Unknown

Material Composition

Unknown

Technical Details

Payload

Oko 63D6 No. 5012

Purpose

Early warning

Mission

Early warning

Manufacturer

NPOL/KOMET

Life Expectancy

Unknown

Bus

Oko

Configuration

Unknown

Motor

Unknown

Equipment

Unknown

Power System

2 deployable fixed solar arrays, batteries

ADCS

Unknown

Transmitter Frequency

Unknown

Map
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