Key statistics
Satellite TRANSIT 4B at a glance.
Uptime
23189
Days in orbit
Revolutions
≈ 13.6
Per day
Orbit
LEO
Low Earth Orbit
Inclination
32.4
Latest
Satellite identification and parameters
Extended collection of information and parameters for TRANSIT 4B.
Object identification
Identified? True
Debris? False
Object name: TRANSIT 4B
International designator: 1961-031A
Object number (NORAD): 202
Object ID (CCSDS): 202
Country: UNITED STATES OF AMERICA (US)
Current information (Y/N): Y
RCS size: LARGE
Orbital parameters
Period: 105.591 minutes
Inclination: 32.436 deg
SMA: 7400.239 km
Apoapsis: 1096.851 km
Periapsis: 947.356 km
RAAN: 212.2593 deg
Eccentricy: 0.0101007
Argument of periapsis: 46.4272 deg
Mean anomaly: 314.4683 deg
Mean motion: 13.637481 rev/day
Mean motion (dot): 0.00000073 rev/day2
B* drag term: 0.000063396 1/REarth
Two-line elements (TLE)
Creation date: May 12, 2025, 2:31 a.m.
Reference frame: TEME
Reference center: EARTH
Epoch: May 11, 2025, 9:27 p.m. UTC
TLE line 0: 0 TRANSIT 4B
TLE line 1: 1 00202U 61031A 25131.89435813 .00000073 00000-0 63396-4 0 9999
TLE line 2: 2 00202 32.4360 212.2593 0101007 46.4272 314.4683 13.63748100166186
Live tracking on map
Real-time ground track for satellite TRANSIT 4B.
Associated space launch
TRANSIT 4B was lifted into orbit during the mission ‘Thor DM-21 Ablestar | Transit 4B & TRAAC’, on board a Thor DM-21 Ablestar space rocket.
The launch took place on Nov. 15, 1961, 10:26 p.m. from Space Launch Complex 17B.
For more information about the launch, click the button.
Thor DM-21 Ablestar | Transit 4B & TRAAC
Agency: N/A
Status: Launch Successful
Launch date: Nov. 15, 1961, 10:26 p.m. UTC
Rocket: Thor DM-21 Ablestar
Launch pad: Space Launch Complex 17B
Location: Cape Canaveral SFS, FL, USA
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