NAVSTAR

NORAD 28129 · COSPAR 2003-058A · ACTIVE

Orbit: #16722 @ 20898 x 20906 km x 55.1008 deg

CURRENT ORBIT DATA

TLE epoch 2026-11-07 06:55 UTC Â· 40.9 h old

Orbit history

// altitude & velocity from orbital-data archive

Trend: —

Altitude —

Velocity —

Next visible passes

// click to check

Current TLE

// onowactive

NAVSTAR 53 (USA 175)
1 28129U 03058A 26311.28844515 -.00000111 00000-0 00000-0 0 09992
2 28129 55.1008 17.9809 0001545 279.1902 80.8364 1.92678408167224

TLE data & history 🚀 Launch manifest

Spacecraft info

// UCS Satellite Database

Launch date

December 21st 2003

Spacecraft age

22 years, 10 months

Distance travelled

—

Expected lifetime

—

Operator

DoD/US Air Force

Purpose

Navigation/Global Positioning

Orbit class

MEO Â· Non-Polar Inclined

Launch site

Cape Canaveral

Launch vehicle

Delta 2

Contractor

Lockheed Martin

Launch mass

2,217 kg

Power

1,136 W

Orbit elements

// from current orbital elements

Inclination

55.1008Â°

Period

747.36 min

Perigee

20898 km

Apogee

20906 km

Eccentricity

0.0001545

RAAN

17.9809Â°

Arg of Perigee

279.1902Â°

Mean Motion

1.92678408 rev/d