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.
STARLINK-35391 (66616)
COSPAR: 2025-270AE | Alt Name: N/A
Image
Additional Sources
Launch Details
Launch Date
November 22, 2025
Launch Site
Launch Pad
LC40
Launch Vehicle
Orbital Elements
NORAD ID
66616
International Designator
2025-270AE
Epoch
Sun, 19 Jul 2026 13:52:28 GMT
Apogee
Calculating...
Perigee
Calculating...
Inclination
43.00°
Right Ascension
31.58°
Eccentricity
Calculating...
Argument of Perigee
258.80°
Period
94.27 min
Mean Motion
15.28 rev/day
Latitude
Calculating...
Longitude
Calculating...
Altitude
Calculating...
Velocity
Calculating...
Polar Plot
3D Visualization
Explore in the Catalog
Basic Satellite Info
Name
STARLINK-35391
Alternative Name
N/A
Type
Payload
Status
Operational
Owner
SPXS
Country
United States
Constellation
N/A
Related Satellites
Major Events
N/A
Latest TLEs
1 66616U 25270AE 26200.57811295 .00009004 00000+0 33625-3 0 9993
2 66616 43.0002 31.5846 0001008 258.8009 101.2729 15.27586025 37984
Source: Celestrak
Summary
Starlink is a satellite constellation developed by SpaceX with the aim of providing global broadband internet coverage. Thousands of small satellites are deployed in low Earth orbit (LEO), enabling high-speed internet access even in remote areas. However, the rapid increase in satellites raises concerns about space debris and the potential for collisions, which can lead to further debris creation and endanger other spacecraft. Additionally, the sheer number of Starlink satellites can affect astronomical observations by increasing light pollution. Proper deorbiting plans and international coordination are essential to mitigate these challenges and ensure long-term sustainability in space.
Physical Characteristics
Length
0.3
Diameter
4.1
Span
29.0
Dry Mass
530
Launch Mass
575
Shape
Box + pan
Radar Cross Section
Unknown
Visual Magnitude
Unknown
Color
Unknown
Material Composition
Unknown
Technical Details
Payload
Starlink Group 6-79-29
Purpose
Unknown
Mission
Unknown
Manufacturer
SPXS
Life Expectancy
Unknown
Bus
Starlink V2MO
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
Satellite Articles
View All Posts »Learn more about satellites and other related topics.
X Report 3 Oct 2025
SpaceX continues to expand its reach with the successful launch of more Starlink satellites while exploring innovative military applications for satellite communications.
X Report 16 Jun 2025
SpaceX progresses with plans for Starship launches from a ULA site while continuing its Starlink expansion. New satellite tracking update enhances user engagement.
The Day That Changed How We Navigate Forever
Forty-seven years ago, an Atlas rocket carried the first GPS satellite into orbit, launching a revolution in navigation that would transform daily life across the globe
Booster 20 Fires All 33 Engines in Record Test | KeepTrack Space Brief
SpaceX completed a full 33-engine static fire on Booster 20, the longest duration test to date. The milestone clears a major hurdle before the next Starship flight attempt.
Space Force Raises Andromeda Contract to $6.2B for SSA Satellites | KeepTrack Space Brief
U.S. Space Force increased Andromeda contract ceiling to $6.2 billion for next-generation space situational awareness satellites replacing GSSAP and SILENTBARKER programs.
X Report 16 Jul 2025
SpaceX successfully launched another batch of Starlink satellites while marking a significant milestone with the 500th Falcon 9 mission. Additionally, the company is preparing for further testing of its Starship system and has begun collaborating with Amazon on their Project Kuiper constellation.
Space Brief 8 Sep 2025
Today's highlights include China's Yaogan-40 satellite launch, military contracts for rocket studies, and SpaceX's 500th booster landing.