Key statistics
Satellite ITALSAT 1 at a glance.
Uptime
12655
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: 1440.314 minutes
Inclination: 14.6187 deg
SMA: 42247.246 km
Apoapsis: 35909.124 km
Periapsis: 35829.098 km
RAAN: 353.6433 deg
Eccentricy: 0.00094711
Argument of periapsis: 56.6639 deg
Mean anomaly: 306.2336 deg
Mean motion: 0.99978165 rev/day
Mean motion (dot): -0.00000101 rev/day2
B* drag term: 0.0 1/REarth
Two-line elements (TLE)
Creation date: Sept. 8, 2025, 3:16 a.m.
Reference frame: TEME
Reference center: EARTH
Epoch: Sept. 7, 2025, 1:17 p.m. UTC
TLE line 0: 0 ITALSAT 1
TLE line 1: 1 21055U 91003A 25250.55368458 -.00000101 00000-0 00000-0 0 9997
TLE line 2: 2 21055 14.6187 353.6433 0009471 56.6639 306.2336 0.99978165114266
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
...
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