Launch Date
May 5, 1971
Launch Site
Launch Pad
LC40
Launch Vehicle
Titan IIIC
NORAD ID
05204
International Designator
1971-039A
Epoch
Sun, 19 Jul 2026 19:05:15 GMT
Apogee
Calculating...
Perigee
Calculating...
Inclination
0.43°
Right Ascension
53.08°
Eccentricity
Calculating...
Argument of Perigee
237.00°
Period
1466.95 min
Mean Motion
0.98 rev/day
Latitude
Calculating...
Longitude
Calculating...
Altitude
Calculating...
Velocity
Calculating...
Name
OPS 3811 (DSP 2)
Alternative Name
DSP F2
Type
Status
Owner
SAMSO
Country
United States
Constellation
N/A
Related Satellites
Major Events
N/A
1 05204U 71039A 26200.79531919 -.00000203 00000+0 00000+0 0 9999
2 05204 0.4312 53.0758 0020577 236.9989 97.4458 00.98163180206548
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
6.9
Diameter
2.8
Span
7.4
Dry Mass
860
Launch Mass
903
Shape
Cyl + 4 Pan
Radar Cross Section
Unknown
Visual Magnitude
Unknown
Color
Unknown
Material Composition
Unknown
Payload
DSP 3
Purpose
Early Warning
Mission
Early Warning
Manufacturer
TRW
Life Expectancy
1.25 years
Bus
DSP
Configuration
Unknown
Motor
MRE-4
Equipment
?
Power System
4 deployable fixed solar arrays, solar cells, batteries
ADCS
Unknown
Transmitter Frequency
Unknown
Learn more about satellites and other related topics.
Space Force awards $54.5M to Starfish Space for GEO satellite servicing vehicle. Artemis II heads to launch pad for first crewed Moon flyby in 54 years. Crew-12 confirmed.
Artemis II grabbed the headlines, but six other missions are quietly approaching milestones that could reshape what we know about Mercury, Mars, asteroids, exoplanets, and the Moon's south pole. Here is what is actually happening with each of them.
Artemis 2 astronauts arrive at KSC for April 1 launch. Four-person crew will fly lunar free-return trajectory, first crewed lunar mission since Apollo 17 in 1972.
Today's briefing covers an exciting new satellite launch, a significant reentry, and unexpected space debris from a fragmentation event.
SpaceX successfully launched 27 Starlink satellites, marking another milestone for its broadband internet service. Meanwhile, the latest GPS III satellite was also launched for the U.S. military, showcasing SpaceX's multifaceted capabilities.
SpaceX's Starlink V2 promises 100x data density for 5G direct-to-phone service. Deutsche Telekom targets 10 European countries by 2028.
Transporter 16 carries 119 payloads: SpaceX's rideshare mission targets Sun-synchronous orbit from Vandenberg, one of its densest manifests yet.
SpaceX receives FAA clearance for Starship Flight 10 and celebrates its 100th Falcon 9 launch of the year, successfully deploying 24 Starlink satellites.
