Launch Date
November 6, 1965
Launch Site
Launch Pad
LC17A
Launch Vehicle
Thor Delta E
NORAD ID
01726
International Designator
1965-089A
Epoch
Sun, 19 Jul 2026 18:38:44 GMT
Apogee
Calculating...
Perigee
Calculating...
Inclination
59.39°
Right Ascension
315.80°
Eccentricity
Calculating...
Argument of Perigee
242.26°
Period
120.29 min
Mean Motion
11.97 rev/day
Latitude
Calculating...
Longitude
Calculating...
Altitude
Calculating...
Velocity
Calculating...
Name
EXPLORER 29 (GEOS 1)
Alternative Name
Explorer 29
Type
Status
Owner
GSFC
Country
United States
Constellation
N/A
Related Satellites
Major Events
N/A
1 01726U 65089A 26200.77690786 -.00000027 00000+0 28229-3 0 9999
2 01726 59.3866 315.8037 0711846 242.2564 292.3473 11.97077409653564
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
1.1
Diameter
1.2
Span
15
Dry Mass
176
Launch Mass
176
Shape
Oct Cyl + Dome + Ant
Radar Cross Section
1.2963
Visual Magnitude
Unknown
Color
Unknown
Material Composition
Unknown
Payload
GEOS A
Purpose
Research
Mission
Research
Manufacturer
APL
Life Expectancy
Unknown
Bus
ANNA
Configuration
Unknown
Motor
?
Equipment
Optical Beacon System, Radio Doppler System, Radio Range/Rate System, C-Band Radar Transponder, NASA Minitrack System, Precipitating Electron Detector, Magnetometer, Laser Tracking Reflector, TR-27 SECOR transponder (#A), TR-30A/S SECOR transponder (#B)
Power System
Solar cells, batteries
ADCS
Unknown
Transmitter Frequency
Unknown
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