Launch Date
April 29, 1965
Launch Site
WLPIS
Launch Pad
LA3A
Launch Vehicle
Scout X-4
NORAD ID
01328
International Designator
1965-032A
Epoch
Sun, 19 Jul 2026 11:56:36 GMT
Apogee
Calculating...
Perigee
Calculating...
Inclination
41.18°
Right Ascension
239.03°
Eccentricity
Calculating...
Argument of Perigee
114.01°
Period
107.55 min
Mean Motion
13.39 rev/day
Latitude
Calculating...
Longitude
Calculating...
Altitude
Calculating...
Velocity
Calculating...
Name
EXPLORER 27
Alternative Name
Explorer 27
Type
Status
Owner
GSFC
Country
United States
Constellation
N/A
Related Satellites
Major Events
N/A
1 01328U 65032A 26200.49763913 -.00000092 00000+0 -10961-4 0 9995
2 01328 41.1821 239.0303 0240302 114.0060 248.6045 13.38930105992660
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
0.3
Diameter
1.2
Span
4.6
Dry Mass
55
Launch Mass
55
Shape
Oct Cyl + 4 Pan
Radar Cross Section
2.0809
Visual Magnitude
Unknown
Color
Unknown
Material Composition
Unknown
Payload
Beacon Explorer C
Purpose
Geodesy, Ionospheric research
Mission
Geodesy, Ionospheric research
Manufacturer
APL
Life Expectancy
Unknown
Bus
Transit 5
Configuration
Transit-Bus
Motor
?
Equipment
Radio Beacons, Doppler Navigation System, Electrostatic Probe, Passive Laser Tracking Reflector
Power System
4 deployable solar arrays, batteries
ADCS
Unknown
Transmitter Frequency
Unknown
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