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INMARSAT 3-F2

NORAD 24307 Payload GEO 1996-053A ● Active
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Altitude (km)
Speed (km/s)
Latitude
Longitude
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🛰️ Orbital Parameters
Perigee
35842 km
Apogee
35895 km
Inclination
9.7°
Period
1440.3 min
Mean Motion
0.99979450 rev/day
TLE Epoch
2026-03-17 12:00:00 UTC
📐 Computed Orbital Characteristics
Avg. Altitude35,869 km
Orbital Velocity11,059 km/h
Velocity3.07 km/s
Orbital Period~24 hours (geosynchronous)
Orbits / Day1.00
Eccentricity0.0006
Semi-Major Axis42,240 km
Est. Orbital LifetimePermanent — geostationary orbit, no atmospheric drag
🚀 Launch & Identity
Country / Operator
IM
Launch Date
1996-09-06
Launch Site
Baikonur, Kazakhstan
Int'l Designator
1996-053A
Object Type
Payload
RCS Size
Large (>1 m²)
🔗 Constellation / Groups
geo protectedgeo protected plusgeo
📖 About This Object
INMARSAT 3-F2 is an active satellite operated by IM, launched on 1996-09-06 from Baikonur, Kazakhstan. With over 30 years in orbit, it has far exceeded many satellites’ design lifetimes. It orbits in Geostationary Orbit (GEO) at altitudes between 35,842 km and 35,895 km with an inclination of 9.7°. It travels at approximately 11,059 km/h (3.07 km/s), completing one full orbit every ~24 hours (geosynchronous) — that’s roughly 1.00 orbits per day. It is part of the Geo Protected constellation group. At geostationary altitude, there is no meaningful atmospheric drag — this object will remain in orbit indefinitely unless actively deorbited. Orbital Radar tracks INMARSAT 3-F2 in real time using the latest two-line element set (TLE) data, providing live position, altitude, speed and orbital path updated continuously.
🌍 Orbit Context
INMARSAT 3-F2 occupies geostationary orbit (GEO) at approximately 35,786 km above the equator. At this precise altitude, the satellite’s orbital period matches the Earth’s rotation — so it appears to hover over a fixed point on the equator. GEO is used primarily for broadcast television, weather monitoring (Meteosat, GOES) and wideband communications. Only about 560 active satellites occupy the GEO belt, but its commercial value is immense: a single GEO slot can cover roughly one-third of the Earth’s surface. This satellite has a non-zero inclination of 9.7°, meaning it traces a small figure-of-eight pattern relative to the ground rather than remaining perfectly stationary. This can indicate an aging satellite whose stationkeeping fuel is running low, or a deliberate inclined-orbit strategy to extend operational life.
❓ Frequently Asked Questions
INMARSAT 3-F2 orbits at approximately 35,869 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 11,059 km/h — it just keeps pace with the ground below. With an inclination of 9.7°, it actually traces a small figure-of-eight pattern rather than remaining perfectly fixed.
INMARSAT 3-F2 is operated by IM. It is catalogued by the U.S. Space Surveillance Network under NORAD ID 24307. You can track INMARSAT 3-F2 in real time on Orbital Radar’s live tracker.
INMARSAT 3-F2 was launched on 1996-09-06 from Baikonur, Kazakhstan, the world’s first and largest operational space launch facility, located in Kazakhstan.
Yes — Orbital Radar tracks INMARSAT 3-F2 (NORAD ID 24307) 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.
INMARSAT 3-F2 travels at approximately 11,059 km/h (6,872 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.
INMARSAT 3-F2 is a member of the Geo Protected constellation. Satellites in this group work together to provide coordinated coverage, typically in similar orbital planes at comparable altitudes. You can view all Geo Protected satellites on Orbital Radar’s live tracker.