Key statistics
Satellite TRANSIT 4A at a glance.
Uptime
23273
Days in orbit
Revolutions
≈ 13.9
Per day
Orbit
LEO
Low Earth Orbit
Inclination
66.8
Latest
Satellite identification and parameters
Extended collection of information and parameters for TRANSIT 4A.
Object identification
Identified? True
Debris? False
Object name: TRANSIT 4A
International designator: 1961-015A
Object number (NORAD): 116
Object ID (CCSDS): 116
Country: UNITED STATES OF AMERICA (US)
Current information (Y/N): Y
RCS size: MEDIUM
Orbital parameters
Period: 103.433 minutes
Inclination: 66.8085 deg
SMA: 7299.038 km
Apoapsis: 979.753 km
Periapsis: 862.054 km
RAAN: 287.4309 deg
Eccentricy: 0.0080626
Argument of periapsis: 236.1634 deg
Mean anomaly: 123.1753 deg
Mean motion: 13.92208546 rev/day
Mean motion (dot): 0.00000129 rev/day2
B* drag term: 0.00015647 1/REarth
Two-line elements (TLE)
Creation date: March 18, 2025, 2:25 a.m.
Reference frame: TEME
Reference center: EARTH
Epoch: March 17, 2025, 7:37 p.m. UTC
TLE line 0: 0 TRANSIT 4A
TLE line 1: 1 00116U 61015A 25076.81760679 .00000129 00000-0 15647-3 0 9993
TLE line 2: 2 00116 66.8085 287.4309 0080626 236.1634 123.1753 13.92208546233171
Live tracking on map
Real-time ground track for satellite TRANSIT 4A.
Associated space launch
TRANSIT 4A was lifted into orbit during the mission ‘Thor DM-21 Ablestar | Transit 4A & Injun-1 & Solrad 3’, on board a Thor DM-21 Ablestar space rocket.
The launch took place on June 29, 1961, 4:23 a.m. from Space Launch Complex 17B.
For more information about the launch, click the button.
Thor DM-21 Ablestar | Transit 4A & Injun-1 & Solrad 3
Agency: N/A
Status: Launch Successful
Launch date: June 29, 1961, 4:23 a.m. UTC
Rocket: Thor DM-21 Ablestar
Launch pad: Space Launch Complex 17B
Location: Cape Canaveral SFS, FL, USA
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