X Report 27 Aug 2025
SpaceX successfully completes a critical test flight of its Starship vehicle while gearing up for another Starlink satellite launch, showcasing significant advancements in their launch capabilities.
TITAN 3C TRANSTAGE R/B (12371)
COSPAR: 1981-025C | Alt Name: Transtage 40
Image
Additional Sources
Launch Details
Launch Date
March 16, 1981
Launch Site
Launch Pad
LC40
Launch Vehicle
Titan IIIC
Orbital Elements
NORAD ID
12371
International Designator
1981-025C
Epoch
Fri, 03 Jul 2026 20:39:50 GMT
Apogee
Calculating...
Perigee
Calculating...
Inclination
6.62°
Right Ascension
298.66°
Eccentricity
Calculating...
Argument of Perigee
326.81°
Period
1420.95 min
Mean Motion
1.01 rev/day
Latitude
Calculating...
Longitude
Calculating...
Altitude
Calculating...
Velocity
Calculating...
Polar Plot
3D Visualization
Basic Satellite Info
Name
TITAN 3C TRANSTAGE R/B
Alternative Name
Transtage 40
Type
Rocket Body
Status
Space Junk
Owner
AFSD
Country
United States
Constellation
N/A
Related Satellites
Major Events
N/A
Latest TLEs
1 12371U 81025C 26184.86099875 -.00000199 00000-0 00000-0 0 9993
2 12371 6.6237 298.6586 0057467 326.8123 33.0107 1.01340407 27214
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 40
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
Satellite Articles
View All Posts »Learn more about satellites and other related topics.
Japan's H3 Returns to Flight With 6 Satellites | KeepTrack Space Brief
Japan's H3 rocket successfully launched June 11, deploying 6 smallsats to orbit after December failure. First return-to-flight for JAXA's flagship heavy-lift vehicle.
X Report 20 Nov 2024
SpaceX conducts another Starship test flight, with high-profile audience; SEOPS secures Falcon 9 for rideshare mission; Ontario partners with Starlink for rural connectivity.
X Report 10 Sep 2025
SpaceX makes strides with United States national security satellites, securing substantial spectrum for Starlink's direct-to-cell services, and preparing for future Starship developments.
Katalyst Link Clears Tests for $500M SPARCS Rescue | KeepTrack Space Brief
Katalyst's Link spacecraft passes key testing milestone ahead of June 2026 launch to rescue NASA's $500M SPARCS telescope. In-space servicing mission will create trackable conjunction risk during approach and docking phase.
SpaceX Wins $57M Golden Dome Satellite Crosslink Deal | KeepTrack Space Brief
SpaceX secures $57 million military contract for Link-182 satellite crosslink demo supporting Golden Dome missile defense. Also joins software working group.
X Report 31 Dec 2025
Vandenberg Space Force Base opens a new launch site that may accommodate SpaceX's Starship. Meanwhile, Starlink continues to expand its service capabilities.
Starlink 17-40 Adds 24 Sats from Vandenberg | KeepTrack X Report
SpaceX's Starlink 17-40 mission launches 24 satellites from Vandenberg SFB at 7:36 a.m. PDT, expanding the 10,705-satellite constellation.