ESA's Proba-3 Formation-Flyer Goes Silent | KeepTrack Space Brief
ESA's Proba-3 spacecraft lost contact last month, grounding the dual-satellite solar eclipse mission. Formation flying between both craft is critical for coronagraph science.
COSMOS 2191 (21980)
COSPAR: 1992-030E | Alt Name: Kosmos-2191
Image
Additional Sources
Launch Details
Launch Date
June 3, 1992
Launch Site
PLMSC
Launch Pad
LC133/3
Launch Vehicle
Kosmos 11K65M
Orbital Elements
NORAD ID
21980
International Designator
1992-030E
Epoch
Fri, 03 Jul 2026 22:41:22 GMT
Apogee
Calculating...
Perigee
Calculating...
Inclination
74.00°
Right Ascension
72.58°
Eccentricity
Calculating...
Argument of Perigee
97.73°
Period
115.70 min
Mean Motion
12.45 rev/day
Latitude
Calculating...
Longitude
Calculating...
Altitude
Calculating...
Velocity
Calculating...
Polar Plot
3D Visualization
Basic Satellite Info
Name
COSMOS 2191
Alternative Name
Kosmos-2191
Type
Payload
Status
Unknown
Owner
VVSR
Country
Russia
Constellation
N/A
Related Satellites
Major Events
N/A
Latest TLEs
1 21980U 92030E 26184.94540392 .00000008 00000-0 16752-3 0 9993
2 21980 74.0034 72.5831 0017987 97.7337 273.3759 12.44573353548251
Source: Celestrak
Summary
COSMOS 2191 (also known as Kosmos-2191) is a military communication satellite with a Strela-1 11F625 bus, launched on June 3, 1992, from the PLMSC launch site using LC133/3 and the Kosmos 11K65M launch vehicle. The satellite has dimensions of 0.8 meters in length, diameter, and span, with a dry mass and launch mass both at 60 kilograms. It is equipped with solar cells and batteries for power supply. COSMOS 2191 was manufactured by NPOPM and is owned by VVSR, operating on a military communication mission. The satellite's shape is polyhedral with an RCS of 0.6722. Its intended lifetime was approximately six months.
Physical Characteristics
Length
0.8
Diameter
0.8
Span
0.8
Dry Mass
60
Launch Mass
60
Shape
Poly
Radar Cross Section
0.6722
Visual Magnitude
Unknown
Color
Unknown
Material Composition
Unknown
Technical Details
Payload
Strela-1M Blok 46 No. 5
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
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 21 Jul 2025
SpaceX successfully launched 24 Starlink satellites into polar orbit, enhancing global coverage. Meanwhile, NASA's Crew-11 is now in quarantine ahead of their upcoming ISS mission.
Space Brief 20 Apr 2025
Today's highlights include advances in space tracking technology by the US Space Force, SpaceX's infrastructure expansion, and a spectacular birthday landing on Earth. Additionally, we spotlight a significant exoplanetary discovery and satellite updates.
New Glenn Achieves First Booster Reuse on Mission 3 | KeepTrack Space Brief
Blue Origin's New Glenn successfully reused its first stage booster for the first time on Mission 3, launching April 19. Booster reuse accelerates operational tempo.
SpaceX Stacks Super Heavy for Starship's 12th Test Flight | KeepTrack X Report
SpaceX stacks Super Heavy booster in preparation for Starship's 12th test flight. Three launches planned this week including ISRO rideshare mission. Musk shares AI and robotics predictions on podcast.
SpaceX to Lower 4,400 Starlink Satellite Orbits for Space Safety | KeepTrack X Report
SpaceX plans to lower orbits of 4,400 Starlink satellites after two collision-concern incidents. Cosmo-SkyMed Earth observation satellite launched for Italy from Vandenberg.
Space Brief 19 May 2025
Today's space brief covers new ultraviolet data from the Europa Clipper, challenges in managing space debris, quantum advances in satellite technology, as well as a failed Indian satellite launch and more.
ULA Launches 29 Amazon Kuiper Satellites; Falcon Heavy Returns | KeepTrack Space Brief
ULA's Atlas V deployed 29 Amazon Kuiper LEO satellites on April 27. Falcon Heavy returns this week with ViaSat-3 F3. Six orbital launches scheduled across three continents.