Key statistics
Satellite TIROS 4 at a glance.
Uptime
23319
Days in orbit
Revolutions
≈ 14.5
Per day
Orbit
LEO
Low Earth Orbit
Inclination
48.3
Latest
Satellite identification and parameters
Extended collection of information and parameters for TIROS 4.
Object identification
Identified? True
Debris? False
Object name: TIROS 4
International designator: 1962-002A
Object number (NORAD): 226
Object ID (CCSDS): 226
Country: UNITED STATES OF AMERICA (US)
Current information (Y/N): Y
RCS size: MEDIUM
Orbital parameters
Period: 99.511 minutes
Inclination: 48.2944 deg
SMA: 7113.363 km
Apoapsis: 789.607 km
Periapsis: 680.848 km
RAAN: 138.7796 deg
Eccentricy: 0.0076447
Argument of periapsis: 200.457 deg
Mean anomaly: 159.3262 deg
Mean motion: 14.47072568 rev/day
Mean motion (dot): 0.0000041 rev/day2
B* drag term: 0.00015357 1/REarth
Two-line elements (TLE)
Creation date: Dec. 12, 2025, 7:16 a.m.
Reference frame: TEME
Reference center: EARTH
Epoch: Dec. 11, 2025, 8:16 p.m. UTC
TLE line 0: 0 TIROS 4
TLE line 1: 1 226U 62002A 25345.84468175 .00000410 00000-0 15357-3 0 9991
TLE line 2: 2 226 48.2944 138.7796 0076447 200.4570 159.3262 14.47072568341314
Live tracking on map
Real-time ground track for satellite TIROS 4.
In-orbit conjunctions
A list of the most updated potential collisions computed for object TIROS 4.
Associated space launch
NASA's TIROS (Television & Infra-Red Observation Satellite) program was the first experimental weather satellite program.
TIROS 4 was lifted into orbit during the mission ‘Thor Delta | Tiros 4’, on board a Thor Delta space rocket.
The launch took place on Feb. 8, 1962, 12:43 p.m. from Space Launch Complex 17A.
For more information about the launch, click the button.
Thor Delta | Tiros 4
Agency: N/A
Status: Launch Successful
Launch date: Feb. 8, 1962, 12:43 p.m. UTC
Rocket: Thor Delta
Launch pad: Space Launch Complex 17A
Location: Cape Canaveral SFS, FL, USA
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