TDRS 3 is a payload in GEO orbit, operated by NASA Goddard Space Flight Center, launched 1988.
| Orbit class | GEO |
| Inclination | 12.5872° |
| Eccentricity | 0.0036889 |
| Period | 1436.2 min |
| Apogee | 35,944 km |
| Perigee | 35,633 km |
| Mean motion | 1.00266233 rev/day |
| RAAN | 340.8665° |
| Arg of perigee | 355.9701° |
| Mean anomaly | 179.3543° |
| B* | 0.0000e+0 |
| Rev at epoch | 12,558 |
1 19548U 88091B 26187.77892087 -.00000290 00000-0 00000-0 0 99972 19548 12.5872 340.8665 0036889 355.9701 179.3543 1.00266233125586{
"OBJECT_NAME": "TDRS 3",
"OBJECT_ID": "1988-091B",
"EPOCH": "2026-07-06T18:41:38.763+00:00",
"MEAN_MOTION": 1.00266233,
"ECCENTRICITY": 0.0036889,
"INCLINATION": 12.5872,
"RA_OF_ASC_NODE": 340.8665,
"ARG_OF_PERICENTER": 355.9701,
"MEAN_ANOMALY": 179.3543,
"EPHEMERIS_TYPE": 0,
"CLASSIFICATION_TYPE": "U",
"NORAD_CAT_ID": 19548,
"REV_AT_EPOCH": 12558,
"BSTAR": 0,
"MEAN_MOTION_DOT": -0.0000029,
"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 3 |
| Operator | NASA Goddard Space Flight CenterHIGHvia GCAT — Jonathan McDowell's General Catalog⚠ sources disagree |
| Country | |
| Launch date | |
| Launch mass (kg) | 2103 |
//Orbital data is approximate and not for operational use. Last ingested from CelesTrak on Jul 7, 2026.
| Mission purpose | — |
| Object class |
| Orbital regime |
| Status |