NAVSTAR 53 (USA 175)
NORAD 28129· COSPAR 2003-058A· Navigation· MEO
Launch
Launched on Dec 21, 2003 from Space Launch Complex 17A, United States of America aboard a Delta II 7925-9.5.
Delta II | GPS IIR-10 →Live · TLE epoch 2026-09-08 02:03 UTC
Orbit class
MEO — Medium Earth (2,000–30,000 km, e.g. GPS / Galileo)
Operator
US Space Force
Country
United States
Manufacturer
Lockheed Martin
Launched
Dec 21, 2003
Mass
—
Apogee
20,911 km
Perigee
20,907 km
Inclination
55.07°
Period
12.46 h
Altitude history
Apogee and perigee for NAVSTAR 53 (USA 175) across 14 days of archived orbital elements (15 element sets, one per day).
Trend
Stable
Change
+0.0 km
Rate
+0.00 km/day
Now
20907 × 20911 km
Apogee Perigee
Derived from our own archive of CelesTrak orbital elements, sampled every 3 hours. Short windows show drag and station-keeping; they are not a reentry prediction.
Related satellites
Sources & further reading
Embed this satellite on your site
Free for editorial use. Attribution back to LowEarth is required.
<iframe src="https://lowearth.app/embed/28129" width="640" height="400" frameborder="0" allow="fullscreen"></iframe>