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SpaceX's Falcon Heavy flew for the first time in 18 months on April 29, while Starlink hit 51 Falcon 9 launches in 2026 with 10,280 satellites working.
SUISEI (PLANET-A) (15967)
COSPAR: 1985-073A | Alt Name: Suisei
DECAYED
Image
Additional Sources
Launch Details
Launch Date
August 18, 1985
Launch Site
KSCUT
Launch Pad
M1
Launch Vehicle
Mu-3S-II
Orbital Elements
NORAD ID
15967
International Designator
1985-073A
Decay Date
Unknown
Basic Satellite Info
Name
SUISEI (PLANET-A)
Alternative Name
Suisei
Type
Payload
Status
Non-operational
Owner
ISASM
Country
Japan
Constellation
N/A
Related Satellites
Major Events
N/A
Summary
The SUISEI (PLANET-A) satellite, also known as Suisei, was launched on August 18, 1985, from Kagoshima Space Center in Japan using the Mu-3S-II launch vehicle. It has dimensions of 0.7 meters in length, 1.4 meters in diameter, and a span of 1.7 meters. The satellite's dry mass is 125 kilograms, with a launch mass of 135 kilograms. Its primary mission was to conduct a comet flyby. SUISEI was manufactured by ISASM (Institute of Space and Astronautical Science) and powered by solar cells and batteries. The shape of the satellite consists of a cylinder with a dish antenna. It was owned and operated by ISASM for its intended purpose of studying comets during flybys.
Physical Characteristics
Length
0.7
Diameter
1.4
Span
1.7
Dry Mass
125
Launch Mass
135
Shape
Cyl + Dish
Radar Cross Section
Unknown
Visual Magnitude
Unknown
Color
Unknown
Material Composition
Unknown
Technical Details
Payload
PLANET-A
Purpose
Comet fly by
Mission
Comet fly by
Manufacturer
ISASM
Life Expectancy
Unknown
Bus
PLANET-A
Configuration
Unknown
Motor
Unknown
Equipment
Unknown
Power System
Solar cells, batteries
ADCS
Unknown
Transmitter Frequency
Unknown
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