COSMOS 1858 (18119)

COSPAR: 1987-051G | Alt Name: Kosmos-1858

Image
COSMOS 1858 Satellite Image
Additional Sources
Launch Details

Launch Date

June 16, 1987

Launch Site

PLMSC

Launch Pad

LC132/1

Launch Vehicle

Kosmos 11K65M

Orbital Elements

NORAD ID

18119

International Designator

1987-051G

Epoch

Sat, 04 Jul 2026 03:05:30 GMT

Apogee

Calculating...

Perigee

Calculating...

Inclination

74.00°

Right Ascension

65.98°

Eccentricity

Calculating...

Argument of Perigee

70.87°

Period

114.65 min

Mean Motion

12.56 rev/day

Latitude

Calculating...

Longitude

Calculating...

Altitude

Calculating...

Velocity

Calculating...

Polar Plot
3D Visualization
Basic Satellite Info

Name

COSMOS 1858

Alternative Name

Kosmos-1858

Type

Payload

Status

Unknown

Owner

UNKS

Country

USSR

Constellation

N/A

Related Satellites

Major Events

N/A

Latest TLEs
1 18119U 87051G   26185.12882216  .00000009  00000-0  14881-3 0  9997
2 18119  74.0039  65.9817 0048098  70.8691   2.1274 12.56041535790410

Source: Celestrak

Summary
COSMOS 1858 (also known as Kosmos-1858) is a military communication satellite launched on June 16, 1987, from the PLMSC launch site using the Kosmos 11K65M launch vehicle. The spacecraft has dimensions of 0.8 meters in length, diameter, and span, with a dry mass of 60 kg and a launch mass of 60 kg as well. It was manufactured by NPOPM and is powered by solar cells and batteries. Its mission focused on military communication for an operational lifespan of approximately six months. The satellite's shape is described as polyhedral, and it has a radar cross section (RCS) value of 0.6808 square meters. It was part of the Strela-1M Blok 41 No. 7 payload series.
Physical Characteristics

Length

0.8

Diameter

0.8

Span

0.8

Dry Mass

60

Launch Mass

60

Shape

Poly

Radar Cross Section

0.6808

Visual Magnitude

Unknown

Color

Unknown

Material Composition

Unknown

Technical Details

Payload

Strela-1M Blok 41 No. 7

Purpose

Military Communication

Mission

Military Communication

Manufacturer

NPOPM

Life Expectancy

6 months

Bus

Strela-1 11F625

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.

X Report 7 Sep 2025

X Report 7 Sep 2025

SpaceX launches 24 Starlink satellites, pushing its 2025 total beyond 2,000, while facing community pushback in Florida for its Starship operations.

NRO Expands Commercial Satellite Role to Airborne Target Tracking | KeepTrack Space Brief

NRO Expands Commercial Satellite Role to Airborne Target Tracking | KeepTrack Space Brief

NRO awards three commercial data contracts and explores vetting satellite firms for airborne target tracking via U.S. Space Force. Strategic expansion of GEOINT capabilities.

X Report 20 Apr 2025

X Report 20 Apr 2025

SpaceX is preparing for significant infrastructure expansion in Texas and Florida to support Starship, launches its third NRO mission in a week, and faces regulatory scrutiny from the Bahamas.

Joe Engle and the Youngest Astronaut Wings Ever Earned

Joe Engle and the Youngest Astronaut Wings Ever Earned

On 29 June 1965, a young Air Force test pilot rode a rocket-powered airplane to 280,600 feet above the California desert. He landed ten minutes later as the youngest person ever to earn astronaut wings.

X Report 21 Mar 2025

X Report 21 Mar 2025

SpaceX achieves a historic rocket reuse milestone and successfully launches NRO satellites, alongside charming interactions during Crew-9 Dragon recovery.

X Report 12 Feb 2025

X Report 12 Feb 2025

SpaceX swaps Crew Dragon capsules with NASA to accelerate Crew-10 launch, and successfully launches multiple Starlink satellites into orbit.

Space Brief 6 Nov 2025

Space Brief 6 Nov 2025

Today's briefing covers Iceye's new aerospace service for defense clients, ESA's plan for dual-use satellites, and key defense agreements impacting satellite technology.

Space Brief 5 Apr 2025

Space Brief 5 Apr 2025

Today's brief covers the new Space Force operations doctrine, international defense collaborations by the UAE, and satellite tracking technology innovations.