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CALSPHERE 4A (01520)
COSPAR: 1965-065H | Alt Name: Calsphere
Image
Additional Sources
Launch Details
Launch Date
August 13, 1965
Launch Site
AFWTR
Launch Pad
75-1-1
Launch Vehicle
Thor Ablestar
Orbital Elements
NORAD ID
01520
International Designator
1965-065H
Epoch
Sat, 04 Jul 2026 01:29:21 GMT
Apogee
Calculating...
Perigee
Calculating...
Inclination
89.90°
Right Ascension
122.32°
Eccentricity
Calculating...
Argument of Perigee
56.69°
Period
107.76 min
Mean Motion
13.36 rev/day
Latitude
Calculating...
Longitude
Calculating...
Altitude
Calculating...
Velocity
Calculating...
Polar Plot
3D Visualization
Basic Satellite Info
Name
CALSPHERE 4A
Alternative Name
Calsphere
Type
Payload
Status
Operational
Owner
Naval Research Laboratory
Country
United States
Constellation
N/A
Related Satellites
Major Events
N/A
Latest TLEs
1 01520U 65065H 26185.06205904 .00000121 00000-0 21268-3 0 9994
2 01520 89.8989 122.3218 0071978 56.6948 315.5923 13.36281512964964
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
0.4
Diameter
0.4
Span
0.4
Dry Mass
4
Launch Mass
4
Shape
Sphere
Radar Cross Section
0.052
Visual Magnitude
Unknown
Color
Unknown
Material Composition
Unknown
Technical Details
Payload
NRL PL158
Purpose
Radar calibration
Mission
Radar calibration
Manufacturer
Naval Research Laboratory
Life Expectancy
Passive
Bus
NRL 14
Configuration
Sphere
Motor
None
Equipment
None
Power System
None
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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