Key statistics
Satellite TRANSIT 5B-1 at a glance.
Uptime
22564
Days in orbit
Revolutions
≈ 13.4
Per day
Orbit
LEO
Low Earth Orbit
Inclination
90.0
Latest
Satellite identification and parameters
Extended collection of information and parameters for TRANSIT 5B-1.
Object identification
Identified? True
Debris? False
Object name: TRANSIT 5B-1
International designator: 1963-038B
Object number (NORAD): 670
Object ID (CCSDS): 670
Country: UNITED STATES OF AMERICA (US)
Current information (Y/N): Y
RCS size: MEDIUM
Orbital parameters
Period: 107.093 minutes
Inclination: 89.9772 deg
SMA: 7470.236 km
Apoapsis: 1121.796 km
Periapsis: 1062.406 km
RAAN: 333.9113 deg
Eccentricy: 0.0039751
Argument of periapsis: 301.5097 deg
Mean anomaly: 58.217 deg
Mean motion: 13.44625252 rev/day
Mean motion (dot): 0.00000049 rev/day2
B* drag term: 0.000068516 1/REarth
Two-line elements (TLE)
Creation date: July 8, 2025, 2:27 a.m.
Reference frame: TEME
Reference center: EARTH
Epoch: July 7, 2025, 10:01 p.m. UTC
TLE line 0: 0 TRANSIT 5B-1
TLE line 1: 1 00670U 63038B 25188.91747934 .00000049 00000-0 68516-4 0 9994
TLE line 2: 2 00670 89.9772 333.9113 0039751 301.5097 58.2170 13.44625252 27927
Live tracking on map
Real-time ground track for satellite TRANSIT 5B-1.
Associated space launch
Transit navigation satellite equipped with nuclear power.
TRANSIT 5B-1 was lifted into orbit during the mission ‘Thor DM-21 Ablestar | Transit 5BN-1’, on board a Thor DM-21 Ablestar space rocket.
The launch took place on Sept. 28, 1963, 8:22 p.m. from Space Launch Complex 2E.
For more information about the launch, click the button.

Thor DM-21 Ablestar | Transit 5BN-1
Agency: N/A
Status: Launch Successful
Launch date: Sept. 28, 1963, 8:22 p.m. UTC
Rocket: Thor DM-21 Ablestar
Launch pad: Space Launch Complex 2E
Location: Vandenberg SFB, CA, USA
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