MUOS-4 is a payload in GEO orbit, operated by Space and Naval Warfare Systems Command, San Diego, launched 2015.
| Orbit class | GEO |
| Inclination | 4.3650° |
| Eccentricity | 0.0056916 |
| Period | 1436.1 min |
| Apogee | 36,027 km |
| Perigee | 35,547 km |
| Mean motion | 1.00271598 rev/day |
| RAAN | 42.3417° |
| Arg of perigee | 3.3562° |
| Mean anomaly | 12.0128° |
| B* | 0.0000e+0 |
| Rev at epoch | 3,976 |
1 40887U 15044A 26188.15996794 -.00000080 00000-0 00000-0 0 99952 40887 4.3650 42.3417 0056916 3.3562 12.0128 1.00271598 39766{
"OBJECT_NAME": "MUOS-4",
"OBJECT_ID": "2015-044A",
"EPOCH": "2026-07-07T03:50:21.23+00:00",
"MEAN_MOTION": 1.00271598,
"ECCENTRICITY": 0.0056916,
"INCLINATION": 4.365,
"RA_OF_ASC_NODE": 42.3417,
"ARG_OF_PERICENTER": 3.3562,
"MEAN_ANOMALY": 12.0128,
"EPHEMERIS_TYPE": 0,
"CLASSIFICATION_TYPE": "U",
"NORAD_CAT_ID": 40887,
"REV_AT_EPOCH": 3976,
"BSTAR": 0,
"MEAN_MOTION_DOT": -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 | MUOS-4 |
| Operator | Space and Naval Warfare Systems Command, San DiegoHIGHvia GCAT — Jonathan McDowell's General Catalog |
| Country | United States |
| Launch date | |
| Launch mass (kg) | |
| Mission purpose | — |
| Object class | PAYLOADHIGH |
//Orbital data is approximate and not for operational use. Last ingested from CelesTrak on Jul 7, 2026.
| Orbital regime |
| Status |