SpaceX Files Confidential IPO at $1.75T Valuation | KeepTrack X Report
SpaceX confidentially files for a record-breaking IPO targeting a $1.75T valuation and $80B raise, while a Starlink satellite breaks apart in orbit.
SL-12 R/B(2) (15963)
COSPAR: 1985-070F | Alt Name: Blok DM No. 55L
Image
Additional Sources
Launch Details
Launch Date
August 8, 1985
Launch Site
Launch Pad
LC200/39
Launch Vehicle
Proton-K/DM
Orbital Elements
NORAD ID
15963
International Designator
1985-070F
Epoch
Sat, 04 Jul 2026 01:12:57 GMT
Apogee
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Perigee
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Inclination
10.76°
Right Ascension
321.04°
Eccentricity
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Argument of Perigee
185.16°
Period
1472.33 min
Mean Motion
0.98 rev/day
Latitude
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Longitude
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Altitude
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Velocity
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Polar Plot
3D Visualization
Basic Satellite Info
Name
SL-12 R/B(2)
Alternative Name
Blok DM No. 55L
Type
Rocket Body
Status
Space Junk
Owner
RVSN
Country
USSR
Constellation
N/A
Related Satellites
Major Events
N/A
Latest TLEs
1 15963U 85070F 26185.05066584 -.00000076 00000-0 00000-0 0 9994
2 15963 10.7637 321.0436 0010127 185.1646 8.0270 0.97803972119745
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
6.3
Diameter
3.7
Span
6.3
Dry Mass
2440
Launch Mass
17200
Shape
Cyl
Radar Cross Section
2.8193
Visual Magnitude
Unknown
Color
Unknown
Material Composition
Unknown
Technical Details
Payload
11S86 No. 55L
Purpose
Unknown
Mission
Unknown
Manufacturer
NPOE
Life Expectancy
Unknown
Bus
Blok DM
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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