THEMIS D is a payload in HEO orbit, operated by NASA Goddard Space Flight Center, launched 2007.
| Orbit class | HEO |
| Inclination | 7.8072° |
| Eccentricity | 0.8328605 |
| Period | 1644.0 min |
| Apogee | 78,195 km |
| Perigee | 1,334 km |
| Mean motion | 0.87589041 rev/day |
| RAAN | 79.6076° |
| Arg of perigee | 233.7430° |
| Mean anomaly | 338.0757° |
| B* | 0.0000e+0 |
| Rev at epoch | 4,123 |
1 30797U 07004D 26186.63801291 -.00000383 00000-0 00000-0 0 99952 30797 7.8072 79.6076 8328605 233.7430 338.0757 0.87589041 41236{
"OBJECT_NAME": "THEMIS D",
"OBJECT_ID": "2007-004D",
"EPOCH": "2026-07-05T15:18:44.315+00:00",
"MEAN_MOTION": 0.87589041,
"ECCENTRICITY": 0.8328605,
"INCLINATION": 7.8072,
"RA_OF_ASC_NODE": 79.6076,
"ARG_OF_PERICENTER": 233.743,
"MEAN_ANOMALY": 338.0757,
"EPHEMERIS_TYPE": 0,
"CLASSIFICATION_TYPE": "U",
"NORAD_CAT_ID": 30797,
"REV_AT_EPOCH": 4123,
"BSTAR": 0,
"MEAN_MOTION_DOT": -0.00000383,
"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 | THEMIS D |
| Operator | NASA Goddard Space Flight CenterHIGHvia GCAT — Jonathan McDowell's General Catalog⚠ sources disagree |
| Country | United States |
| Launch date | |
| Launch mass (kg) |
//Orbital data is approximate and not for operational use. Last ingested from CelesTrak on Jul 7, 2026.
| Mission purpose | — |
| Object class |
| Orbital regime |
| Status |