Key statistics
Satellite TRIAD 1 at a glance.
Uptime
19407
Days in orbit
Revolutions
≈ 14.5
Per day
Orbit
SSO
Sun Synchronous Orbit
Inclination
90.0
Latest
Satellite identification and parameters
Extended collection of information and parameters for TRIAD 1.
Object identification
Identified? True
Debris? False
Object name: TRIAD 1
International designator: 1972-069A
Object number (NORAD): 6173
Object ID (CCSDS): 6173
Country: UNITED STATES OF AMERICA (US)
Current information (Y/N): Y
RCS size: MEDIUM
Orbital parameters
Period: 99.155 minutes
Inclination: 90.0121 deg
SMA: 7096.39 km
Apoapsis: 754.928 km
Periapsis: 681.581 km
RAAN: 208.279 deg
Eccentricy: 0.00516786
Argument of periapsis: 133.7394 deg
Mean anomaly: 285.5209 deg
Mean motion: 14.52267394 rev/day
Mean motion (dot): 0.00001261 rev/day2
B* drag term: 0.00030210953 1/REarth
Two-line elements (TLE)
Creation date: Oct. 21, 2025, 3:26 a.m.
Reference frame: TEME
Reference center: EARTH
Epoch: Oct. 20, 2025, 7:08 p.m. UTC
TLE line 0: 0 TRIAD 1
TLE line 1: 1 06173U 72069A 25293.79768904 .00001261 00000-0 30211-3 0 9992
TLE line 2: 2 06173 90.0121 208.2790 0051679 133.7394 285.5209 14.52267394795823
Live tracking on map
Real-time ground track for satellite TRIAD 1.
In-orbit conjunctions
A list of the most updated potential collisions computed for object TRIAD 1.
Associated space launch
Satellite designed to accurately measure atmospheric drag in order to improve the accuracy of the USN Transit Navigation System
TRIAD 1 was lifted into orbit during the mission ‘Scout B-1 | Triad 1’, on board a Scout B-1 space rocket.
The launch took place on Sept. 2, 1972, 5:50 p.m. from Space Launch Complex 5.
For more information about the launch, click the button.
Scout B-1 | Triad 1
Agency: N/A
Status: Launch Successful
Launch date: Sept. 2, 1972, 5:50 p.m. UTC
Rocket: Scout B-1
Launch pad: Space Launch Complex 5
Location: Vandenberg SFB, CA, USA
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