NAVSTAR 53 (USA 175) is a payload in MEO orbit, operated by US Air Force Space and Missile Center, launched 2003.
Orbital data last updated 3 days ago. This may not reflect the current orbital state — not for operational use or collision avoidance.
| Orbit class | MEO |
| Inclination | 55.0371° |
| Eccentricity | 0.0001312 |
| Period | 747.4 min |
| Apogee | 20,906 km |
| Perigee | 20,898 km |
| Mean motion | 1.92678532 rev/day |
| RAAN | 22.6387° |
| Arg of perigee | 343.0059° |
| Mean anomaly | 17.0355° |
| B* | 0.0000e+0 |
| Rev at epoch | 16,479 |
1 28129U 03058A 26185.17490002 -.00000067 00000-0 00000-0 0 99972 28129 55.0371 22.6387 0001312 343.0059 17.0355 1.92678532164795{
"OBJECT_NAME": "NAVSTAR 53 (USA 175)",
"OBJECT_ID": "2003-058A",
"EPOCH": "2026-07-04T04:11:51.362+00:00",
"MEAN_MOTION": 1.92678532,
"ECCENTRICITY": 0.0001312,
"INCLINATION": 55.0371,
"RA_OF_ASC_NODE": 22.6387,
"ARG_OF_PERICENTER": 343.0059,
"MEAN_ANOMALY": 17.0355,
"EPHEMERIS_TYPE": 0,
"CLASSIFICATION_TYPE": "U",
"NORAD_CAT_ID": 28129,
"REV_AT_EPOCH": 16479,
"BSTAR": 0,
"MEAN_MOTION_DOT": -6.7e-7,
"MEAN_MOTION_DDOT": 0
}Reconstructed from CelesTrak OMM mean-elements (element-set number is a placeholder). TLE/OMM data is approximate. Not for operational use or collision avoidance.
| Name | NAVSTAR 53 (USA 175) |
| Operator | US Air Force Space and Missile CenterHIGHvia GCAT — Jonathan McDowell's General Catalog⚠ sources disagree |
| Country | |
| Launch date | |
| Launch mass (kg) | 1077 |
//Orbital data is approximate and not for operational use. Last ingested from CelesTrak on Jul 7, 2026.
| Mission purpose | — |
| Object class |
| Orbital regime |
| Status |