Demystifying the USSPACECOM Two-Line Element Set Format
Discover the history and significance of Two-Line Element Sets (TLEs) in satellite tracking. Dive into their components, applications, and how they are evolving to meet future space challenges.
TITAN 3C TRANSTAGE R/B (09855)
COSPAR: 1977-007C | Alt Name: Transtage 23
Image
Additional Sources
Launch Details
Launch Date
February 6, 1977
Launch Site
Launch Pad
LC40
Launch Vehicle
Titan IIIC
Orbital Elements
NORAD ID
09855
International Designator
1977-007C
Epoch
Fri, 03 Jul 2026 06:50:31 GMT
Apogee
Calculating...
Perigee
Calculating...
Inclination
3.35°
Right Ascension
267.61°
Eccentricity
Calculating...
Argument of Perigee
47.94°
Period
1435.14 min
Mean Motion
1.00 rev/day
Latitude
Calculating...
Longitude
Calculating...
Altitude
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Velocity
Calculating...
Polar Plot
3D Visualization
Basic Satellite Info
Name
TITAN 3C TRANSTAGE R/B
Alternative Name
Transtage 23
Type
Rocket Body
Status
Space Junk
Owner
SAMSO
Country
United States
Constellation
N/A
Related Satellites
Major Events
N/A
Latest TLEs
1 09855U 77007C 26184.28508811 -.00000016 00000-0 00000-0 0 9990
2 09855 3.3513 267.6050 0016121 47.9400 312.5897 1.00338661 25522
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
4.6
Diameter
3.1
Span
4.6
Dry Mass
1950
Launch Mass
1950
Shape
Cyl + 2 Nozzle
Radar Cross Section
Unknown
Visual Magnitude
Unknown
Color
Unknown
Material Composition
Unknown
Technical Details
Payload
Transtage 23
Purpose
Unknown
Mission
Unknown
Manufacturer
MM
Life Expectancy
Unknown
Bus
Transtage
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
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