Falcon Heavy Returns After 18-Month Hiatus | KeepTrack X Report
SpaceX's Falcon Heavy flew for the first time in 18 months on April 29, while Starlink hit 51 Falcon 9 launches in 2026 with 10,280 satellites working.
SL-14 R/B (21820)
COSPAR: 1991-086B | Alt Name: Tsiklon-3 33-304 Stage 3
Image
Additional Sources
Launch Details
Launch Date
December 18, 1991
Launch Site
PLMSC
Launch Pad
LC32/2
Launch Vehicle
Tsiklon-3
Orbital Elements
NORAD ID
21820
International Designator
1991-086B
Epoch
Sat, 04 Jul 2026 02:03:23 GMT
Apogee
Calculating...
Perigee
Calculating...
Inclination
82.56°
Right Ascension
326.40°
Eccentricity
Calculating...
Argument of Perigee
202.12°
Period
120.32 min
Mean Motion
11.97 rev/day
Latitude
Calculating...
Longitude
Calculating...
Altitude
Calculating...
Velocity
Calculating...
Polar Plot
3D Visualization
Basic Satellite Info
Name
SL-14 R/B
Alternative Name
Tsiklon-3 33-304 Stage 3
Type
Rocket Body
Status
Space Junk
Owner
UNKSR
Country
USSR
Constellation
N/A
Related Satellites
Major Events
N/A
Latest TLEs
1 21820U 91086B 26185.08568875 .00001327 00000-0 26232-3 0 9997
2 21820 82.5622 326.3977 1560671 202.1213 150.4713 11.96776046501176
Source: Celestrak
Summary
A rocket body, also commonly referred to as an upper stage or spent rocket stage, is the structural shell left behind after a rocket has delivered its payload to orbit. These large and often heavy pieces of space hardware can remain in orbit for years, posing significant collision hazards as part of the growing space debris problem. If left uncontrolled, rocket bodies have the potential to reenter Earth's atmosphere unpredictably, which can lead to falling debris in populated areas. Additionally, they risk colliding with operational satellites or the International Space Station, creating more debris and putting human life at risk.
Physical Characteristics
Length
2.8
Diameter
2.2
Span
2.8
Dry Mass
1600
Launch Mass
1600
Shape
Cyl
Radar Cross Section
4.737
Visual Magnitude
Unknown
Color
Unknown
Material Composition
Unknown
Technical Details
Payload
S5M
Purpose
Unknown
Mission
Unknown
Manufacturer
YUZH
Life Expectancy
Unknown
Bus
S5M
Configuration
Unknown
Motor
Unknown
Equipment
Unknown
Power System
Unknown
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.
Space Brief 7 Nov 2024
Today's Space Brief covers major upcoming launches from SpaceX, US military missile tests, and developments in Virgin Galactic's fleet expansion. Stay informed on key satellite events and launch updates.
Space Brief 9 Dec 2024
Highlights include China's rising threats in space, a new Starlink launch, NASA's optimistic future, and a cosmic conjunction featuring the Moon and Saturn.
Mike Melvill, 124 Meters, and the Morning Space Went Private
On 21 June 2004, a 63-year-old test pilot rode a homebuilt rocket plane to 100,124 meters above the Mojave Desert, clearing the edge of space by about the length of a city block. He came down the first private astronaut in history, holding a sign that read 'SpaceShipOne, GovernmentZero.'
SpaceX Hits 600 Rocket Landings, Wins $175M Mars Deal | KeepTrack X Report
SpaceX's 600th Falcon 9 booster landing coincides with a $175M NASA Mars contract win and the final GPS III satellite launch this week.
Atlas 5 Retires After Final 551 Flight to Amazon Kuiper | KeepTrack Space Brief
ULA launches the final Atlas 5 551 configuration—its heaviest variant with 5 solid boosters—carrying Amazon's Project Kuiper satellite to low Earth orbit from Cape Canaveral.
Space Brief 2 Nov 2024
Today's brief covers a historic milestone for China's space program, the decoding of a simulated alien signal, innovative solutions to address satellite air pollution, and industry shifts driven by major investments and contracts.
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.