Atlas 5 551 Flies Last Mission for Amazon Kuiper | KeepTrack Space Brief
ULA launched Atlas 5 551 configuration for final time on July 1, deploying Amazon Kuiper broadband satellites. New Glenn pad rebuild underway at LC-36 after May explosion.
E3TESTER (66662)
COSPAR: 2025-274N | Alt Name: N/A
Image
Additional Sources
Launch Details
Launch Date
November 26, 2025
Launch Site
NSC
Launch Pad
LC2
Launch Vehicle
Nuri
Orbital Elements
NORAD ID
66662
International Designator
2025-274N
Epoch
Sun, 19 Jul 2026 18:37:50 GMT
Apogee
Calculating...
Perigee
Calculating...
Inclination
97.75°
Right Ascension
129.86°
Eccentricity
Calculating...
Argument of Perigee
271.51°
Period
96.37 min
Mean Motion
14.94 rev/day
Latitude
Calculating...
Longitude
Calculating...
Altitude
Calculating...
Velocity
Calculating...
Polar Plot
3D Visualization
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Basic Satellite Info
Name
E3TESTER
Alternative Name
N/A
Type
Payload
Status
Operational
Owner
KARI
Country
South Korea
Constellation
N/A
Related Satellites
Major Events
N/A
Latest TLEs
1 66662U 25274N 26200.77628389 .00000591 00000+0 60340-4 0 9997
2 66662 97.7478 129.8604 0013240 271.5123 88.4580 14.94300197 35101
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
0.2
Span
0.3
Dry Mass
17
Launch Mass
17
Shape
Box
Radar Cross Section
Unknown
Visual Magnitude
Unknown
Color
Unknown
Material Composition
Unknown
Technical Details
Payload
E3 TESTER 1
Purpose
Unknown
Mission
Unknown
Manufacturer
KARI
Life Expectancy
Unknown
Bus
Cubesat 12U
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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