ITALSAT 1
NORAD 21055
Payload
GEO
1991-003A
● Active
CONNECTING…
GEO · NORAD 21055
NOW PASSING OVER
Calculating position…
—
Altitude (km)
—
Speed (km/s)
—
Latitude
—
Longitude
🛰️ Orbital Parameters
Perigee
35814 km
Apogee
35932 km
Inclination
14.6°
Period
1440.5 min
Mean Motion
0.99963487 rev/day
TLE Epoch
2026-06-19 15:00:00 UTC
📐 Computed Orbital Characteristics
Avg. Altitude35,873 km
Orbital Velocity11,058 km/h
Velocity3.07 km/s
Orbital Period~24 hours (geosynchronous)
Orbits / Day1.00
Eccentricity0.0014
Semi-Major Axis42,244 km
Est. Orbital LifetimePermanent — geostationary orbit, no atmospheric drag
🚀 Launch & Identity
Country / Operator
🇮🇹 Italy
Launch Date
1991-01-15
Launch Site
Guiana Space Centre, Kourou
Int'l Designator
1991-003A
Object Type
Payload
RCS Size
Large (>1 m²)
📖 About This Object
ITALSAT 1 is an active satellite operated by Italy, launched on 1991-01-15 from Guiana Space Centre, Kourou. With over 35 years in orbit, it has far exceeded many satellites’ design lifetimes. It orbits in Geostationary Orbit (GEO) at altitudes between 35,814 km and 35,932 km with an inclination of 14.6°. It travels at approximately 11,058 km/h (3.07 km/s), completing one full orbit every ~24 hours (geosynchronous) — that’s roughly 1.00 orbits per day. At geostationary altitude, there is no meaningful atmospheric drag — this object will remain in orbit indefinitely unless actively deorbited. Orbital Radar tracks ITALSAT 1 in real time using the latest two-line element set (TLE) data, providing live position, altitude, speed and orbital path updated continuously.
🌍 Orbit Context
ITALSAT 1 occupies geostationary orbit at approximately 35,786 km above the equator, where its orbital period matches the Earth’s 24-hour rotation. From the ground, it appears to hover over a fixed point — ideal for broadcast television, weather monitoring and wideband communications. With an inclination of 14.6°, it traces a small figure-of-eight pattern relative to the equator rather than remaining perfectly stationary, which can indicate aging stationkeeping fuel or a deliberate inclined-orbit strategy. Within ±50 km of ITALSAT 1’s average altitude, there are currently 57 active payloads and 34 tracked debris or rocket body fragments. Italy operates approximately 88 active satellites in total.
❓ Frequently Asked Questions
ITALSAT 1 orbits at approximately 35,873 km altitude, where the orbital period matches the Earth’s 24-hour rotation. This means it stays above the same point on the equator at all times. Its actual speed is still 11,058 km/h — it just keeps pace with the ground below. With an inclination of 14.6°, it actually traces a small figure-of-eight pattern rather than remaining perfectly fixed. Learn more about geostationary orbits.
ITALSAT 1 is operated by Italy. It is catalogued by the U.S. Space Surveillance Network under NORAD ID 21055. You can track ITALSAT 1 in real time on Orbital Radar’s live tracker or browse all operators in the operator directory.
ITALSAT 1 was launched on 1991-01-15 from Guiana Space Centre, Kourou, the European spaceport in French Guiana, chosen for its equatorial location which provides an energy-efficient boost for orbital insertions. View the full satellite launch log.
Yes — Orbital Radar tracks ITALSAT 1 (NORAD ID 21055) using the latest TLE (two-line element set) data from Space-Track and CelesTrak. Open the live tracker to see its current position, altitude, speed and orbital path updated in real time. You can also browse the satellite directory to find other tracked objects.
ITALSAT 1 travels at approximately 11,058 km/h (6,871 mph) — roughly 3.07 km/s. Despite this high speed, it appears stationary from the ground because it matches the Earth’s rotation. Geostationary satellites are actually slower than LEO satellites because orbital velocity decreases with altitude.