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SpaceX makes strides on Starship launch pad, upcoming Starlink infusions from California and Florida, and regulatory challenges loom with FCC and C-band spectrum.
KYOKKO (EXOS-A) (10664)
COSPAR: 1978-014A | Alt Name: Kyokko
Image
Additional Sources
Launch Details
Launch Date
February 4, 1978
Launch Site
KSCUT
Launch Pad
M
Launch Vehicle
Mu-3H
Orbital Elements
NORAD ID
10664
International Designator
1978-014A
Epoch
Sat, 04 Jul 2026 03:24:14 GMT
Apogee
Calculating...
Perigee
Calculating...
Inclination
65.37°
Right Ascension
260.66°
Eccentricity
Calculating...
Argument of Perigee
10.16°
Period
133.84 min
Mean Motion
10.76 rev/day
Latitude
Calculating...
Longitude
Calculating...
Altitude
Calculating...
Velocity
Calculating...
Polar Plot
3D Visualization
Basic Satellite Info
Name
KYOKKO (EXOS-A)
Alternative Name
Kyokko
Type
Payload
Status
Non-operational
Owner
ISAS
Country
Japan
Constellation
N/A
Related Satellites
Major Events
N/A
Latest TLEs
1 10664U 78014A 26185.14182997 -.00000017 00000-0 26585-4 0 9999
2 10664 65.3678 260.6595 1903347 10.1646 353.2669 10.75903411884591
Source: Celestrak
Summary
Apologies, there is no summary for this satellite yet. I am working to generate these for every object in the catalog, but it is going to take time.
Physical Characteristics
Length
0.8
Diameter
0.9
Span
4
Dry Mass
126
Launch Mass
126
Shape
Cyl + 2 Ant
Radar Cross Section
1.0127
Visual Magnitude
Unknown
Color
Unknown
Material Composition
Unknown
Technical Details
Payload
EXOS-A
Purpose
Research, upper atmosphere, plasma
Mission
Research, upper atmosphere, plasma
Manufacturer
ISAS
Life Expectancy
Unknown
Bus
EXOS
Configuration
Unknown
Motor
Unknown
Equipment
Unknown
Power System
Solar cells, batteries
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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