COSMOS 2491 (RS-46) (39497)

COSPAR: 2013-076E | Alt Name: Kosmos-2491

Image

Additional Sources

Launch Details

Launch Date

December 25, 2013

Launch Site

PLMSC

Launch Pad

LC133/3

Launch Vehicle

Rokot

Orbital Elements

NORAD ID

39497

International Designator

2013-076E

Epoch

Sat, 04 Jul 2026 07:34:34 GMT

Apogee

Calculating...

Perigee

Calculating...

Inclination

82.49°

Right Ascension

157.54°

Eccentricity

Calculating...

Argument of Perigee

56.02°

Period

115.80 min

Mean Motion

12.43 rev/day

Latitude

Calculating...

Longitude

Calculating...

Altitude

Calculating...

Velocity

Calculating...

Polar Plot

3D Visualization

Basic Satellite Info

Name

COSMOS 2491 (RS-46)

Alternative Name

Kosmos-2491

Type

Payload

Status

Non-operational

Owner

TSKHM

Country

Russia

Constellation

N/A

Related Satellites

Major Events

N/A

Latest TLEs

1 39497U 13076E   26185.31567933  .00000007  00000-0 -19805-4 0  9993

2 39497  82.4857 157.5437 0014306  56.0174 304.2263 12.43497431567384

Source: Celestrak

Summary

COSMOS 2491 (RS-46), also known as Kosmos-2491, is a satellite manufactured by TSKHM and launched on December 25, 2013, from the PLMSC launch site using the Rokot launch vehicle. Its primary mission involves technology demonstration and amateur communication. The spacecraft, named Nivelir No. 1, has dimensions of approximately 1 meter in length and diameter of 0.4 meters with a span of 1 meter, and it carries a dry mass of 100 kg. Power is supplied by solar cells and batteries. Its shape is described as a hexagonal cylinder with antennas attached. The satellite was launched into orbit on the same day it became stable in its orbit.

Physical Characteristics

Length

Diameter

0.4

Span

Dry Mass

100

Launch Mass

100

Shape

Hex Cyl + Ant

Radar Cross Section

0.3361

Visual Magnitude

Unknown

Color

Unknown

Material Composition

Unknown

Technical Details

Payload

Nivelir No. 1

Purpose

Technology, amateur communication

Mission

Technology, amateur communication

Manufacturer

TSKHM

Life Expectancy

Unknown

Bus

Nivelir

Configuration

Unknown

Motor

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.

Latitude

Longitude

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.

The Day Humanity First Used a Planet to Navigate the Solar System

Fifty-one years ago, Mariner 10 revolutionized space exploration by executing the first-ever planetary gravity assist at Venus, pioneering a technique that would transform how we explore the solar system

Starcloud Files 88,000-Satellite Constellation Plan | KeepTrack Space Brief

Starcloud files FCC plans for 88,000-satellite orbital data center constellation, matching scale of Starlink and Amazon Kuiper expansions. Massive LEO conjunction risk implications.

Falcon 9 Returns to Flight, Crew-12 Targets Feb 11 Launch | KeepTrack X Report

Falcon 9 returns to flight with Starlink 17-33 mission after brief stand-down. Crew-12 astronaut launch confirmed for Feb 11. SpaceX shifts Dragon launches away from pad 39A.

X Report 21 Sep 2025

Key updates include a potential delay for the Starship lunar lander, successful static fire tests for Ship 38, and the latest Starlink satellite launch plans.

Space Brief 13 May 2025

China expands its classified satellite series, Space Force advances cloud-based ground station marketplaces, and the Pentagon grows its satellite network partner list. Highlighting new roles for sensor technology in tracking space debris.

Space Brief 16 Feb 2025

SpaceX's historic Falcon 9 flight launches 21 Starlink satellites, opening new milestones in space travel. Meanwhile, K2 Space achieves a funding breakthrough, and the first astronaut with a disability is set for a mission to the ISS.

Space Brief 24 Sep 2025

Key highlights on China's reusable rocket developments, U.S. military's Tranche 1 satellite launch, Space Force's weapons acquisition strategies, and more.

Space Brief 3 Feb 2025

Today's brief covers SpaceX's continued Starlink expansions, Japan's successful Michibiki satellite launch, and challenges faced by India's navigation satellite. Stay updated on crucial satellite events and launches.