X Report 18 Nov 2025
SpaceX successfully launched the Sentinel-6B satellite to monitor global sea levels while resuming daytime rocket launches. Furthermore, delays in the Starship timeline impact NASA's Artemis 3 mission schedule.
HIMAWARI-4 AKM (20317)
COSPAR: 1989-070C | Alt Name: Star 27
Image
Additional Sources
Launch Details
Launch Date
September 5, 1989
Launch Site
TANSC
Launch Pad
N
Launch Vehicle
H-1
Orbital Elements
NORAD ID
20317
International Designator
1989-070C
Epoch
Sat, 04 Jul 2026 02:52:19 GMT
Apogee
Calculating...
Perigee
Calculating...
Inclination
12.58°
Right Ascension
337.08°
Eccentricity
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Argument of Perigee
64.15°
Period
1458.02 min
Mean Motion
0.99 rev/day
Latitude
Calculating...
Longitude
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Altitude
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Velocity
Calculating...
Polar Plot
3D Visualization
Basic Satellite Info
Name
HIMAWARI-4 AKM
Alternative Name
Star 27
Type
Rocket Body
Status
Space Junk
Owner
NASDA
Country
Japan
Constellation
N/A
Related Satellites
Major Events
N/A
Latest TLEs
1 20317U 89070C 26185.11967175 -.00000053 00000-0 00000-0 0 9995
2 20317 12.5782 337.0800 0241518 64.1523 124.1836 0.98763874 46820
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
1.2
Diameter
0.7
Span
1.2
Dry Mass
62
Launch Mass
400
Shape
Cyl + Cone
Radar Cross Section
0.3162
Visual Magnitude
Unknown
Color
Unknown
Material Composition
Unknown
Technical Details
Payload
Star 27 TE-M-616-5
Purpose
Unknown
Mission
Unknown
Manufacturer
THKE
Life Expectancy
Unknown
Bus
Star 27
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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