Launch Date
March 1, 1972
Launch Site
Launch Pad
LC40
Launch Vehicle
Titan IIIC
NORAD ID
05851
International Designator
1972-010A
Epoch
Sat, 04 Jul 2026 06:00:34 GMT
Apogee
Calculating...
Perigee
Calculating...
Inclination
0.46°
Right Ascension
96.92°
Eccentricity
Calculating...
Argument of Perigee
182.59°
Period
1443.12 min
Mean Motion
1.00 rev/day
Latitude
Calculating...
Longitude
Calculating...
Altitude
Calculating...
Velocity
Calculating...
Name
OPS 1570 (DSP 3)
Alternative Name
DSP F3
Type
Status
Owner
SAMSO
Country
United States
Constellation
N/A
Related Satellites
Major Events
N/A
1 05851U 72010A 26185.25040196 -.00000306 00000-0 00000-0 0 9998
2 05851 0.4550 96.9205 0007643 182.5871 235.3256 0.99783585 26107
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 4
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 shifts GPS III satellite launch from ULA's Vulcan to SpaceX Falcon 9 due to persistent solid rocket booster issues. Critical navigation asset reassignment signals operational consequences.
Today's highlights include multiple SpaceX Starlink launches, a successful Rocket Lab mission for JAXA, and a scheduled launch update from Kennedy Space Center.
Discover the latest in space news with the ULA's recent launch for the US Space Force, significant developments in radar tracking at high altitudes, and impactful policy changes involving military space missions.
Today we explore defense-driven shifts in satellite operations amid geopolitical tensions and innovative projects pushing the boundaries of space technology.
This week's highlights include the successful launch of the X-37B spaceplane and the deployment of 24 new Starlink satellites, alongside preparations for the upcoming Starship Flight 10.
Key insights from the latest SpaceX Starship breakup, the establishment of a new satellite mobile service, and enhancing America's missile shield capabilities through satellites.
Today's brief covers significant space events, including milestone national security certifications for ULA Vulcan and Rocket Lab, SpaceX's groundbreaking polar orbit mission, and a failed launch attempt by Isar Aerospace.
NASA delays Artemis 2 for SLS upper stage fix and pad rollback. SpaceX Falcon 9 booster shatters reuse record with 33rd flight. Tory Bruno joins Blue Origin for defense work.
