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GALAXY 3

NORAD 15308 Payload GEO 1984-101A ● Active
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🛰️ Orbital Parameters
Perigee
35890 km
Apogee
35924 km
Inclination
14.0°
Period
1442.3 min
Mean Motion
0.99844445 rev/day
TLE Epoch
2026-11-01 19:00:00 UTC
📐 Computed Orbital Characteristics
Avg. Altitude35,907 km
Orbital Velocity11,054 km/h
Velocity3.07 km/s
Orbital Period~24 hours (geosynchronous)
Orbits / Day1.00
Eccentricity0.0004
Semi-Major Axis42,278 km
Est. Orbital LifetimePermanent — geostationary orbit, no atmospheric drag
🚀 Launch & Identity
Country / Operator
🇺🇸 HCI (United States)
Launch Date
1984-09-21
Launch Site
Cape Canaveral Space Force Station, United States
Int'l Designator
1984-101A
Object Type
Payload
RCS Size
Large (>1 m²)
📖 About This Object
GALAXY 3 is an active satellite operated by HCI (United States), launched on 1984-09-21 from Cape Canaveral Space Force Station, United States on the Galaxy III launch. With over 42 years in orbit, it has far exceeded many satellites’ design lifetimes. It orbits in Geostationary Orbit (GEO) at altitudes between 35,890 km and 35,924 km with an inclination of 14.0°. It travels at approximately 11,054 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 GALAXY 3 in real time using the latest two-line element set (TLE) data, providing live position, altitude, speed and orbital path updated continuously.
🌍 Orbit Context
GALAXY 3 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 14.0°, 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 GALAXY 3’s average altitude, there are currently 74 active payloads and 20 tracked debris or rocket body fragments. United States operates approximately 13,340 active satellites in total, of which 25 share a similar altitude band with GALAXY 3.
❓ Frequently Asked Questions
GALAXY 3 orbits at approximately 35,907 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 11,054 km/h — it just keeps pace with the ground below. With an inclination of 14.0°, it actually traces a small figure-of-eight pattern rather than remaining perfectly fixed. Learn more about geostationary orbits.
GALAXY 3 is operated by HCI (United States). It is catalogued by the U.S. Space Surveillance Network under NORAD ID 15308. You can track GALAXY 3 in real time on Orbital Radar’s live tracker or browse all operators in the operator directory.
GALAXY 3 was launched on 1984-09-21 from Cape Canaveral Space Force Station, United States, one of the busiest launch facilities in the world, operated by NASA and the U.S. Space Force on Florida’s Atlantic coast. View the full satellite launch log.
Yes — Orbital Radar tracks GALAXY 3 (NORAD ID 15308) using the latest TLE (two-line element set) orbital data in its live tracking catalogue (see our data sources). 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.
GALAXY 3 travels at approximately 11,054 km/h (6,869 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.