▸ Orbital parametersOrbit class HEO Inclination 72.4772° Eccentricity 0.8310069 Period 5083.2 min Apogee 172,934 km Perigee 10,172 km Mean motion 0.28328473 rev/day RAAN 348.5484° Arg of perigee 167.9365° Mean anomaly 185.1680° B* 0.0000e+0 Rev at epoch 136
▸ Two-line element set (TLE)EPOCH Jul 7, 2026 SOURCE CelesTrak DERIVED current UPDATED Jul 7, 2026
1 40485U 15011D 26188.25002315 -.00000658 00000-0 00000-0 0 9992copy
2 40485 72.4772 348.5484 8310069 167.9365 185.1680 0.28328473 1368copy
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▸ source OMM (JSON) {
"OBJECT_NAME": "MMS 4",
"OBJECT_ID": "2015-011D",
"EPOCH": "2026-07-07T06:00:02+00:00",
"MEAN_MOTION": 0.28328473,
"ECCENTRICITY": 0.8310069,
"INCLINATION": 72.4772,
"RA_OF_ASC_NODE": 348.5484,
"ARG_OF_PERICENTER": 167.9365,
"MEAN_ANOMALY": 185.168,
"EPHEMERIS_TYPE": 0,
"CLASSIFICATION_TYPE": "U",
"NORAD_CAT_ID": 40485,
"REV_AT_EPOCH": 136,
"BSTAR": 0,
"MEAN_MOTION_DOT": -0.00000658,
"MEAN_MOTION_DDOT": 0
} copy Reconstructed from CelesTrak OMM mean-elements (element-set number is a placeholder). TLE/OMM data is approximate. Not for operational use or collision avoidance.
▸ Satellite metadataName MMS 4
Operator National Aeronautics and Space Administration MEDIUM via Wikidata Country United States
Launch date Launch mass (kg)
▸ Data qualityClaims 8
Sources 3
TLE available
▸ SourcesOrbitalWiki manual curation CC-BY 4.0
// Orbital data is approximate and not for operational use. Last ingested from CelesTrak on Jul 7, 2026.