Space Object Catalog
The master ledger of everything orbiting Earth: how tens of thousands of satellites, rocket bodies, and debris fragments are tracked and numbered
Launch Date
January 17, 1976
Launch Site
Launch Pad
LC17B
Launch Vehicle
Delta 2914
NORAD ID
08585
International Designator
1976-004A
Epoch
Mon, 20 Jul 2026 17:38:36 GMT
Apogee
Calculating...
Perigee
Calculating...
Inclination
3.85°
Right Ascension
271.47°
Eccentricity
Calculating...
Argument of Perigee
274.30°
Period
1436.87 min
Mean Motion
1.00 rev/day
Latitude
Calculating...
Longitude
Calculating...
Altitude
Calculating...
Velocity
Calculating...
Name
CTS
Alternative Name
Hermes
Type
Status
Owner
CRC
Country
Canada
Constellation
N/A
Related Satellites
Major Events
N/A
1 08585U 76004A 26201.73514698 .00000072 00000+0 00000+0 0 9994
2 08585 3.8453 271.4729 0015035 274.2971 247.5858 01.00218007122631
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
1.9
Diameter
1.8
Span
16.5
Dry Mass
311
Launch Mass
336
Shape
Box + 2 Pan
Radar Cross Section
3.1622
Visual Magnitude
Unknown
Color
Unknown
Material Composition
Unknown
Payload
CTS
Purpose
Communication, Experimental
Mission
Communication, Experimental
Manufacturer
CRC
Life Expectancy
2 years (design); 3.75 years (achieved)
Bus
CTS
Configuration
Unknown
Motor
Star-27
Equipment
2 Ku-band transponders
Power System
2 deployable solar arrays, batteries
ADCS
Unknown
Transmitter Frequency
Unknown
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