TDRS 12 is a payload in GEO orbit, operated by NASA Goddard Space Flight Center, launched 2014.
| Orbit class | GEO |
| Inclination | 3.9960° |
| Eccentricity | 0.0003996 |
| Period | 1436.0 min |
| Apogee | 35,802 km |
| Perigee | 35,769 km |
| Mean motion | 1.00275626 rev/day |
| RAAN | 19.3952° |
| Arg of perigee | 202.8079° |
| Mean anomaly | 91.6943° |
| B* | 0.0000e+0 |
| Rev at epoch | 4,447 |
1 39504U 14004A 26188.19350479 -.00000257 00000-0 00000-0 0 99982 39504 3.9960 19.3952 0003996 202.8079 91.6943 1.00275626 44474{
"OBJECT_NAME": "TDRS 12",
"OBJECT_ID": "2014-004A",
"EPOCH": "2026-07-07T04:38:38.814+00:00",
"MEAN_MOTION": 1.00275626,
"ECCENTRICITY": 0.0003996,
"INCLINATION": 3.996,
"RA_OF_ASC_NODE": 19.3952,
"ARG_OF_PERICENTER": 202.8079,
"MEAN_ANOMALY": 91.6943,
"EPHEMERIS_TYPE": 0,
"CLASSIFICATION_TYPE": "U",
"NORAD_CAT_ID": 39504,
"REV_AT_EPOCH": 4447,
"BSTAR": 0,
"MEAN_MOTION_DOT": -0.00000257,
"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 | TDRS 12 |
| Operator | NASA Goddard Space Flight CenterHIGHvia GCAT — Jonathan McDowell's General Catalog⚠ sources disagree |
| Country | |
| Launch date | |
| Launch mass (kg) | 3454 |
//Orbital data is approximate and not for operational use. Last ingested from CelesTrak on Jul 7, 2026.
| Mission purpose | — |
| Object class |
| Orbital regime |
| Status |