NAVSTAR 57 (USA 183) is a payload in MEO orbit, operated by US Air Force Space and Missile Center, launched 2005.
| Orbit class | MEO |
| Inclination | 54.8622° |
| Eccentricity | 0.0128120 |
| Period | 718.0 min |
| Apogee | 20,522 km |
| Perigee | 19,842 km |
| Mean motion | 2.00564304 rev/day |
| RAAN | 272.3856° |
| Arg of perigee | 296.3155° |
| Mean anomaly | 65.3878° |
| B* | 0.0000e+0 |
| Rev at epoch | 15,223 |
1 28874U 05038A 26187.79797911 -.00000018 00000-0 00000-0 0 99992 28874 54.8622 272.3856 0128120 296.3155 65.3878 2.00564304152230{
"OBJECT_NAME": "NAVSTAR 57 (USA 183)",
"OBJECT_ID": "2005-038A",
"EPOCH": "2026-07-06T19:09:05.395+00:00",
"MEAN_MOTION": 2.00564304,
"ECCENTRICITY": 0.012812,
"INCLINATION": 54.8622,
"RA_OF_ASC_NODE": 272.3856,
"ARG_OF_PERICENTER": 296.3155,
"MEAN_ANOMALY": 65.3878,
"EPHEMERIS_TYPE": 0,
"CLASSIFICATION_TYPE": "U",
"NORAD_CAT_ID": 28874,
"REV_AT_EPOCH": 15223,
"BSTAR": 0,
"MEAN_MOTION_DOT": -1.8e-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 57 (USA 183) |
| 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 |