Spacecraft information: MMS 3
| Launched | 12 March 2015 |
| Flight ended | – |
| Status | Operational |
| Categories |
Tracking and Data Relay Satellite System (TDRSS)
Space & Earth Science Active satellites |
| Launch site | Air Force Eastern Test Range, Florida, USA |
| Owner | United States |
| NORAD ID | 40484 |
| COSPAR ID | 2015-011C |
| Alternative names |
MAGNETOSPHERIC MULTISCALE 3 |
| Observing |
Current orbital elements
| Inclination | 69.743° |
| Eccentricity | 0.84822 |
| RA ascending node | 23.411 hr |
| Argument perigee | 163.831° |
| Mean anomaly | 131.672° |
| Orbital period | 5076.539 min |
| Epoch of osculation | 31 Dec 2025, 16:00 |
Derived Quantities
| Min Altitude | 8480.0 km |
| Mean Altitude | 91474.0 km |
| Peak Altitude | 174468.0 km |
Orbital History
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