X Report 19 Dec 2025
A partial breakup incident involving a Starlink satellite raised concerns, while SpaceX continued its ambitious projects and launches.
FLOCK 4H 36 (66739)
COSPAR: 2025-276CB | Alt Name: N/A
Image
Additional Sources
Launch Details
Launch Date
November 28, 2025
Launch Site
AFWTR
Launch Pad
SLC4E
Launch Vehicle
Chang Zheng 3B
Orbital Elements
NORAD ID
66739
International Designator
2025-276CB
Epoch
Sun, 19 Jul 2026 18:31:16 GMT
Apogee
Calculating...
Perigee
Calculating...
Inclination
97.42°
Right Ascension
274.11°
Eccentricity
Calculating...
Argument of Perigee
168.72°
Period
94.69 min
Mean Motion
15.21 rev/day
Latitude
Calculating...
Longitude
Calculating...
Altitude
Calculating...
Velocity
Calculating...
Polar Plot
3D Visualization
Explore in the Catalog
Basic Satellite Info
Name
FLOCK 4H 36
Alternative Name
N/A
Type
Payload
Status
Operational
Owner
PLAN
Country
United States
Constellation
N/A
Related Satellites
Major Events
N/A
Latest TLEs
1 66739U 25276CB 26200.77171462 .00003422 00000+0 15858-3 0 9998
2 66739 97.4229 274.1090 0002905 168.7241 191.4060 15.20752471 35388
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
0.3
Diameter
0.1
Span
0.3
Dry Mass
5.700
Launch Mass
5.700
Shape
Box+2 pan
Radar Cross Section
Unknown
Visual Magnitude
Unknown
Color
Unknown
Material Composition
Unknown
Technical Details
Payload
Dove 255e
Purpose
Unknown
Mission
Unknown
Manufacturer
PLAN
Life Expectancy
Unknown
Bus
Cubesat 3U
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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