Launch Date
May 31, 1967
Launch Site
AFWTR
Launch Pad
SLC2W
Launch Vehicle
Thor SLV-2 Agena D
NORAD ID
02826
International Designator
1967-053A
Epoch
Mon, 20 Jul 2026 21:19:57 GMT
Apogee
Calculating...
Perigee
Calculating...
Inclination
69.92°
Right Ascension
315.66°
Eccentricity
Calculating...
Argument of Perigee
300.57°
Period
97.42 min
Mean Motion
14.78 rev/day
Latitude
Calculating...
Longitude
Calculating...
Altitude
Calculating...
Velocity
Calculating...
Name
OPS 5712 (P/L 160)
Alternative Name
Calsphere IV
Type
Status
Owner
Naval Research Laboratory
Country
United States
Constellation
N/A
Related Satellites
Major Events
N/A
1 02826U 67053A 26201.88885764 .00004733 00000+0 66343-3 0 9995
2 02826 69.9175 315.6626 0002528 300.5678 59.5221 14.78118145 71217
Source: Celestrak
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.
Length
0.5
Diameter
0.5
Span
0.5
Dry Mass
5
Launch Mass
5
Shape
Sphere
Radar Cross Section
0.403
Visual Magnitude
Unknown
Color
Unknown
Material Composition
Unknown
Payload
NRL PL160
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
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