Optical Intersatellite Link (OISL)
The laser-based crosslinks that turn Starlink into a mesh, anchor the SDA Transport Layer, and just made their GPS debut on GPS III SV10 - quietly rewriting how data moves through space.
GEESAT 4-09 (65127)
COSPAR: 2025-170J | Alt Name: N/A
Image
Additional Sources
Launch Details
Launch Date
August 8, 2025
Launch Site
YSLA
Launch Pad
LP6
Launch Vehicle
Jielong-3
Orbital Elements
NORAD ID
65127
International Designator
2025-170J
Epoch
Sun, 19 Jul 2026 19:10:35 GMT
Apogee
Calculating...
Perigee
Calculating...
Inclination
49.99°
Right Ascension
53.33°
Eccentricity
Calculating...
Argument of Perigee
155.27°
Period
97.20 min
Mean Motion
14.81 rev/day
Latitude
Calculating...
Longitude
Calculating...
Altitude
Calculating...
Velocity
Calculating...
Polar Plot
3D Visualization
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Basic Satellite Info
Name
GEESAT 4-09
Alternative Name
N/A
Type
Payload
Status
Operational
Owner
GEESP
Country
China
Constellation
N/A
Related Satellites
Major Events
N/A
Latest TLEs
1 65127U 25170J 26200.79902321 .00000691 00000+0 11559-3 0 9998
2 65127 49.9923 53.3266 0022065 155.2744 204.9255 14.81475458 50837
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
1.0
Diameter
0.5
Span
2.0
Dry Mass
130
Launch Mass
130
Shape
Box + 2 pan
Radar Cross Section
Unknown
Visual Magnitude
Unknown
Color
Unknown
Material Composition
Unknown
Technical Details
Payload
GeeSAT 4-09
Purpose
Unknown
Mission
Unknown
Manufacturer
GWCG
Life Expectancy
Unknown
Bus
GPS100
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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