TACSAT 6
NORAD 39473
Payload
LEO
2013-072M
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LEO · NORAD 39473
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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
332 km
Apogee
418 km
Inclination
120.5°
Period
92.0 min
Mean Motion
15.64474156 rev/day
TLE Epoch
2026-06-19 18:00:00 UTC
📐 Computed Orbital Characteristics
Avg. Altitude375 km
Orbital Velocity27,672 km/h
Velocity7.69 km/s
Orbital Period92 minutes
Orbits / Day15.64
Eccentricity0.0064
Semi-Major Axis6,746 km
Est. Orbital LifetimeMonths to ~1 year
🚀 Launch & Identity
Country / Operator
🇺🇸 Operational Responsive Space (ORS) Office (United States)
Launch Date
2013-12-06
Launch Site
Vandenberg SFB, California
Int'l Designator
2013-072M
Object Type
Payload
RCS Size
Medium (0.1–1 m²)
📖 About This Object
TACSAT 6 is an active satellite operated by Operational Responsive Space (ORS) Office (United States), launched on 2013-12-06 from Vandenberg SFB, California. After 13 years in orbit, it continues to be tracked by global surveillance networks. It orbits in Low Earth Orbit (LEO) at altitudes between 332 km and 418 km with an inclination of 120.5°. It travels at approximately 27,672 km/h (7.69 km/s), completing one full orbit every 92 minutes — that’s roughly 15.64 orbits per day. At its current altitude, the estimated orbital lifetime before atmospheric re-entry is months to ~1 year. Orbital Radar tracks TACSAT 6 in real time using the latest two-line element set (TLE) data, providing live position, altitude, speed and orbital path updated continuously.
🌍 Orbit Context
TACSAT 6 orbits at an average altitude of 375 km in the lower reaches of Low Earth Orbit, where atmospheric drag is significant and orbital lifetimes are measured in months to a few years. This is the busiest corridor in space — home to crewed spacecraft, rapid-revisit imaging satellites and the densest part of the Starlink constellation. Within ±50 km of TACSAT 6’s average altitude, there are currently 1,337 active payloads and 62 tracked debris or rocket body fragments — notable neighbours include STARLINK-1008, STARLINK-1012, STARLINK-1020. This makes it one of the more crowded altitude bands, containing roughly 7.7% of all active satellites. With an inclination of 120.5°, TACSAT 6 passes over latitudes between 120.5°N and 120.5°S, providing near-global coverage including the polar regions. Polar and near-polar orbits are used for reconnaissance, weather monitoring and Earth-observation missions that need to image every part of the planet. United States operates approximately 12,360 active satellites in total, of which 1,207 share a similar altitude band with TACSAT 6.
❓ Frequently Asked Questions
TACSAT 6 orbits in Low Earth Orbit (LEO) at altitudes between 332 km (perigee) and 418 km (apogee), with an average altitude of approximately 375 km. It completes one orbit every 92 minutes, travelling at approximately 27,672 km/h (17,195 mph).
TACSAT 6 is operated by Operational Responsive Space (ORS) Office (United States). It is catalogued by the U.S. Space Surveillance Network under NORAD ID 39473. You can track TACSAT 6 in real time on Orbital Radar’s live tracker or browse all operators in the operator directory.
TACSAT 6 was launched on 2013-12-06 from Vandenberg SFB, California, primarily used for polar and sun-synchronous orbit launches due to its southward ocean trajectory from California. At its current altitude, the estimated remaining orbital lifetime is: months to ~1 year. View the full satellite launch log.
Yes — Orbital Radar tracks TACSAT 6 (NORAD ID 39473) 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.
TACSAT 6 travels at approximately 27,672 km/h (17,195 mph) — roughly 7.69 km/s. It completes 15.64 orbits per day, meaning the crew or instruments aboard (if any) would experience approximately 31 sunrises and sunsets every 24 hours.