Key statistics
Satellite VANGUARD 1 at a glance.
Uptime
24472
Days in orbit
Revolutions
≈ 10.9
Per day
Orbit
MEO
Medium Earth Orbit
Inclination
34.3
Latest
Satellite identification and parameters
Extended collection of information and parameters for VANGUARD 1.
Object identification
Identified? True
Debris? False
Object name: VANGUARD 1
International designator: 1958-002B
Object number (NORAD): 5
Object ID (CCSDS): 5
Country: UNITED STATES OF AMERICA (US)
Current information (Y/N): Y
RCS size: SMALL
Orbital parameters
Period: 132.61 minutes
Inclination: 34.2559 deg
SMA: 8614.112 km
Apoapsis: 3822.444 km
Periapsis: 649.51 km
RAAN: 289.5466 deg
Eccentricy: 0.1841707
Argument of periapsis: 231.1318 deg
Mean anomaly: 111.0245 deg
Mean motion: 10.85892847 rev/day
Mean motion (dot): 0.00000353 rev/day2
B* drag term: 0.00041972 1/REarth
Two-line elements (TLE)
Creation date: March 16, 2025, 3:38 a.m.
Reference frame: TEME
Reference center: EARTH
Epoch: March 15, 2025, 3:59 p.m. UTC
TLE line 0: 0 VANGUARD 1
TLE line 1: 1 00005U 58002B 25074.66611163 .00000353 00000-0 41972-3 0 9995
TLE line 2: 2 00005 34.2559 289.5466 1841707 231.1318 111.0245 10.85892847393430
Live tracking on map
Real-time ground track for satellite VANGUARD 1.
Associated space launch
Small satellite used to test the Vanguard three-stage launch vehicle.
VANGUARD 1 was lifted into orbit during the mission ‘Vanguard | Vanguard’, on board a Vanguard space rocket.
The launch took place on March 17, 1958, 12:15 p.m. from Launch Complex 18A.
For more information about the launch, click the button.
Vanguard | Vanguard
Agency: N/A
Status: Launch Successful
Launch date: March 17, 1958, 12:15 p.m. UTC
Rocket: Vanguard
Launch pad: Launch Complex 18A
Location: Cape Canaveral SFS, FL, USA
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