QZS-3
NORAD 42917
Payload
GEO
2017-048A
● Active
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GEO · NORAD 42917
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Altitude (km)
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Speed (km/s)
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Latitude
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Longitude
🛰️ Orbital Parameters
Perigee
35778 km
Apogee
35794 km
Inclination
0.1°
Period
1436.0 min
Mean Motion
1.00275135 rev/day
TLE Epoch
2026-06-19 06:00:00 UTC
📐 Computed Orbital Characteristics
Avg. Altitude35,786 km
Orbital Velocity11,070 km/h
Velocity3.07 km/s
Orbital Period~24 hours (geosynchronous)
Orbits / Day1.00
Eccentricity0.0002
Semi-Major Axis42,157 km
Est. Orbital LifetimePermanent — geostationary orbit, no atmospheric drag
🚀 Launch & Identity
Country / Operator
🇯🇵 Japan Aerospace Exploration Agency (JAXA) (Japan)
Launch Date
2017-08-19
Launch Site
TNSTA
Int'l Designator
2017-048A
Object Type
Payload
RCS Size
Large (>1 m²)
📖 About This Object
QZS-3 is an active satellite operated by Japan Aerospace Exploration Agency (JAXA) (Japan), launched on 2017-08-19 from TNSTA. It orbits in Geostationary Orbit (GEO) at altitudes between 35,778 km and 35,794 km with an inclination of 0.1°. It travels at approximately 11,070 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 QZS-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
QZS-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. Within ±50 km of QZS-3’s average altitude, there are currently 713 active payloads and 58 tracked debris or rocket body fragments — notable neighbours include ASTRA 1N, GOES 16, TDRS 13. Japan operates approximately 189 active satellites in total, of which 26 share a similar altitude band with QZS-3.
🔗 Quasi-Zenith Satellite System (QZSS)
This satellite is part of Japan's Quasi-Zenith Satellite System (QZSS), a regional satellite navigation augmentation system providing centimetre-level positioning accuracy over Japan and the Asia-Oceania region. QZSS supplements GPS with satellites in highly inclined geosynchronous and geostationary orbits, ensuring at least one satellite is always near-zenith over Japan.
❓ Frequently Asked Questions
QZS-3 orbits at approximately 35,786 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 11,070 km/h — it just keeps pace with the ground below. Learn more about geostationary orbits.
QZS-3 is operated by Japan Aerospace Exploration Agency (JAXA) (Japan). It is catalogued by the U.S. Space Surveillance Network under NORAD ID 42917. You can track QZS-3 in real time on Orbital Radar’s live tracker or browse all operators in the operator directory.
QZS-3 was launched on 2017-08-19 from TNSTA. View the full satellite launch log.
Yes — Orbital Radar tracks QZS-3 (NORAD ID 42917) 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.
QZS-3 travels at approximately 11,070 km/h (6,878 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.