Launch Date
December 8, 1977
Launch Site
AFWTR
Launch Pad
SLC3W
Launch Vehicle
Atlas F/MSD
NORAD ID
10594
International Designator
1977-112F
Epoch
Sat, 04 Jul 2026 04:59:22 GMT
Apogee
Calculating...
Perigee
Calculating...
Inclination
63.33°
Right Ascension
124.95°
Eccentricity
Calculating...
Argument of Perigee
163.97°
Period
102.63 min
Mean Motion
14.03 rev/day
Latitude
Calculating...
Longitude
Calculating...
Altitude
Calculating...
Velocity
Calculating...
Name
SS 3
Alternative Name
SS 3
Type
Status
Owner
NRO/NRL
Country
United States
Constellation
N/A
Related Satellites
Major Events
N/A
1 10594U 77112F 26185.20789948 .00000414 00000-0 12732-3 0 9993
2 10594 63.3311 124.9479 0480987 163.9693 197.7211 14.03095171369688
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
0.9
Diameter
0.4
Span
10
Dry Mass
200
Launch Mass
200
Shape
Box + Ant
Radar Cross Section
Unknown
Visual Magnitude
Unknown
Color
Unknown
Material Composition
Unknown
Payload
PARCAE 2 SSU 3
Purpose
Ocean Surveillance, ELINT
Mission
Ocean Surveillance, ELINT
Manufacturer
Naval Research Laboratory
Life Expectancy
Unknown
Bus
NOSS SSU
Configuration
Gravity gradient stabilized
Motor
?
Equipment
?
Power System
4 deployable solar arrays, batteries
ADCS
Unknown
Transmitter Frequency
Unknown
Learn more about satellites and other related topics.
NRO awards three commercial data contracts and explores vetting satellite firms for airborne target tracking via U.S. Space Force. Strategic expansion of GEOINT capabilities.
Key developments include China's Shijian 26 satellite launch, U.S. Space Force's BAE Systems contract for missile-tracking satellites, and military advancements in space systems.
Key updates include the impending Falcon 9 launch for Transporter-14, insights on Starship's explosion, and a last-minute abort of the Starlink 10-23 mission.
Today's highlights include new ESA Euclid data, upcoming Blue Origin flight, and multiple Starlink launches, delivering fresh satellite tracking opportunities.
Space Force terminated its $1.7B SCAR ground antenna modernization contract and is relaunching competition. Delays extend reliance on aging legacy systems for MEO and GEO satellite command.
SpaceX launches 600th Falcon 9 rocket with Starlink 17-13 mission. Crew Dragon docks at ISS restoring crew to seven. Crew-12 launched on Friday the 13th in a first for NASA.
Delve into the latest on military AI leadership debates, Wedgetail funding increases, and the Army's Short Range Reconnaissance Program advancements. Explore how these developments influence satellite tracking and defense initiatives.
SpaceX launches GPS satellite for Space Force — third consecutive GPS mission reassigned from ULA. Space Force nears selection of next-gen GEO spy satellite contractors. Northwood Space lands $49M deal.
