Key statistics
Satellite ITALSAT 1 at a glance.
Uptime
12752
Days in orbit
Revolutions
≈ 1.0
Per day
Orbit
OTHER
Other
Inclination
14.6
Latest
Satellite identification and parameters
Extended collection of information and parameters for ITALSAT 1.
Object identification
Identified? True
Debris? False
Object name: ITALSAT 1
International designator: 1991-003A
Object number (NORAD): 21055
Object ID (CCSDS): 21055
Country: ITALY (IT)
Current information (Y/N): Y
RCS size: LARGE
Orbital parameters
Period: 1440.677 minutes
Inclination: 14.5949 deg
SMA: 42254.343 km
Apoapsis: 35911.07 km
Periapsis: 35841.345 km
RAAN: 352.9242 deg
Eccentricy: 0.00082506
Argument of periapsis: 37.8982 deg
Mean anomaly: 144.7829 deg
Mean motion: 0.99952978 rev/day
Mean motion (dot): 0.00000035 rev/day2
B* drag term: 0.0 1/REarth
Two-line elements (TLE)
Creation date: Dec. 12, 2025, 10:14 a.m.
Reference frame: TEME
Reference center: EARTH
Epoch: Dec. 12, 2025, 1:59 a.m. UTC
TLE line 0: 0 ITALSAT 1
TLE line 1: 1 21055U 91003A 25346.08308784 .00000035 00000-0 00000-0 0 9992
TLE line 2: 2 21055 14.5949 352.9242 0008251 37.8982 144.7829 0.99952978115210
Live tracking on map
Real-time ground track for satellite ITALSAT 1.
Associated space launch
Italy's first operational communications satellite was launched 15 January 1991 by an Ariane-44L H10 booster. Developed by a contractor team led by Alenia Spazio, Italsat carries ten active transponders plus five spares for 30/20 GHz and 50/40 GHz links with a capacity of 12,000 telephone circuits.
ITALSAT 1 was lifted into orbit during the mission ‘Ariane 44L | Italsat 1’, on board a Ariane 44L space rocket.
The launch took place on Jan. 15, 1991, 11:10 p.m. from Ariane Launch Area 2.
For more information about the launch, click the button.
Ariane 44L | Italsat 1
Agency: N/A
Status: Launch Successful
Launch date: Jan. 15, 1991, 11:10 p.m. UTC
Rocket: Ariane 44L
Launch pad: Ariane Launch Area 2
Location: Guiana Space Centre, French Guiana
...
Latest news about this satellite
There are no fresh news available about this satellite. Check back as we update our databases every day.
Newsletter sign-up
Weekly statistics, charts and insights to help you stay on top of the space industry.
