NAVSTAR 56 (USA 180) is a payload in MEO orbit, operated by US Air Force Space and Missile Center, launched 2004.
| Orbit class | MEO |
| Inclination | 55.1238° |
| Eccentricity | 0.0170043 |
| Period | 718.0 min |
| Apogee | 20,635 km |
| Perigee | 19,731 km |
| Mean motion | 2.00556743 rev/day |
| RAAN | 324.1069° |
| Arg of perigee | 316.8633° |
| Mean anomaly | 78.6534° |
| B* | 0.0000e+0 |
| Rev at epoch | 15,882 |
1 28474U 04045A 26187.79546740 -.00000070 00000-0 00000-0 0 99922 28474 55.1238 324.1069 0170043 316.8633 78.6534 2.00556743158820{
"OBJECT_NAME": "NAVSTAR 56 (USA 180)",
"OBJECT_ID": "2004-045A",
"EPOCH": "2026-07-06T19:05:28.383+00:00",
"MEAN_MOTION": 2.00556743,
"ECCENTRICITY": 0.0170043,
"INCLINATION": 55.1238,
"RA_OF_ASC_NODE": 324.1069,
"ARG_OF_PERICENTER": 316.8633,
"MEAN_ANOMALY": 78.6534,
"EPHEMERIS_TYPE": 0,
"CLASSIFICATION_TYPE": "U",
"NORAD_CAT_ID": 28474,
"REV_AT_EPOCH": 15882,
"BSTAR": 0,
"MEAN_MOTION_DOT": -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 56 (USA 180) |
| Operator | US Air Force Space and Missile CenterHIGHvia GCAT — Jonathan McDowell's General Catalog⚠ sources disagree |
| Country | |
| Launch date | |
| Launch mass (kg) | 1077HIGH |
//Orbital data is approximate and not for operational use. Last ingested from CelesTrak on Jul 7, 2026.
| Mission purpose | — |
| Object class |
| Orbital regime |
| Status |