Key statistics
Satellite TRIAD 1 at a glance.
Uptime
19461
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: 99.148 minutes
Inclination: 90.0101 deg
SMA: 7096.023 km
Apoapsis: 752.253 km
Periapsis: 683.523 km
RAAN: 208.3615 deg
Eccentricy: 0.00484288
Argument of periapsis: 318.7159 deg
Mean anomaly: 159.6444 deg
Mean motion: 14.52379852 rev/day
Mean motion (dot): 0.00000993 rev/day2
B* drag term: 0.0002373362 1/REarth
Two-line elements (TLE)
Creation date: Dec. 12, 2025, 10:14 a.m.
Reference frame: TEME
Reference center: EARTH
Epoch: Dec. 12, 2025, 4:09 a.m. UTC
TLE line 0: 0 TRIAD 1
TLE line 1: 1 06173U 72069A 25346.17326413 .00000993 00000-0 23734-3 0 9991
TLE line 2: 2 06173 90.0101 208.3615 0048429 318.7159 159.6444 14.52379852803422
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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