X Report 24 Apr 2025
SpaceX continues its historic launch cadence, includes Starlink expansion and business strategies in focus.
STARS-II (GENNAI) (39579)
COSPAR: 2014-009H | Alt Name: Gennai
DECAYED
Image
Additional Sources
Launch Details
Launch Date
February 27, 2014
Launch Site
TANSC
Launch Pad
Y
Launch Vehicle
H-IIA 202
Orbital Elements
NORAD ID
39579
International Designator
2014-009H
Decay Date
4/26/2014
Basic Satellite Info
Name
STARS-II (GENNAI)
Alternative Name
Gennai
Type
Payload
Status
Decayed
Owner
KAGA
Country
Japan
Constellation
N/A
Related Satellites
Major Events
N/A
Summary
STARS-II (GENNAI), also known as Gennai, is a technology satellite with the NORAD catalog ID 39579 and object ID 2014-009H. Launched on February 27, 2014, from TANSC Launch Site Y using the H-IIA 202 launch vehicle, it was manufactured by KAGA for technology demonstration purposes. The satellite has a length of 0.3 meters and diameter of 0.2 meters with a span of 350 meters, indicating it likely deploys large structures or tethers in orbit. Its dry mass is 10 kg, matching its launch mass. STARS-II (GENNAI) uses two deployable fixed solar arrays for power generation along with batteries to maintain operations. The satellite's shape consists of two boxes connected by a tether, providing a unique configuration for its mission objectives.
Physical Characteristics
Length
0.3
Diameter
0.2
Span
350
Dry Mass
10
Launch Mass
10
Shape
2 Box + Tether
Radar Cross Section
0.21
Visual Magnitude
Unknown
Color
Unknown
Material Composition
Unknown
Technical Details
Payload
STARS-2 Mother
Purpose
Technology
Mission
Technology
Manufacturer
KAGA
Life Expectancy
Unknown
Bus
STARS
Configuration
Unknown
Motor
None
Equipment
Unknown
Power System
2 deployable fixed solar arrays, batteries
ADCS
Unknown
Transmitter Frequency
Unknown
Satellite Articles
View All Posts »Learn more about satellites and other related topics.
Space Brief 2 Oct 2025
Highlighting ExLabs' Space Force contract, Starlink advances, and developments in orbital communication tech.
X Report 3 Dec 2025
SpaceX completes multiple successful launches, enhancing its Starlink constellation with new satellites while resolving personnel issues related to Crew 12.
Space Force Plans to Double Active-Duty Force by 2030 | KeepTrack Space Brief
Space Force confirms plan to double active-duty Guardians by 2030, targeting faster response to satellite anomalies and adversary maneuvers in space domain awareness operations.
The Day America Gained New Eyes on Mars
Fifty-six years ago, a revolutionary spacecraft launched toward the Red Planet after being saved from disaster by two quick-thinking technicians who risked their lives to prevent a rocket collapse
X Report 12 Jun 2025
Today, SpaceX faced delays in launching the Ax-4 mission due to a booster leak, while Starlink made strides towards launching in India with new telecom license approval.
Saltzman's Final Warning: Space Force Preps for War | KeepTrack Space Brief
Gen. Chance Saltzman warns of impending space conflict as SpaceX launches 21 SDA satellites from Vandenberg. Space Force shifts from support role to core deterrent.
Space Brief 15 Sep 2025
Discover the latest in satellite tracking with key topics covering the launch of Tranche 1 satellites for the Space Development Agency, a record-setting Transporter-15 mission by Exolaunch, and new defense-focused satellite connectivity solutions by Satlink and Rivada.