EXPLORER 46
| Launched | 12 August 1972 |
| Flight ended | 1 November 1979 |
| Status | Decayed |
| Launch site | Wallops Island, Virginia, USA |
| Owner | United States |
| NORAD ID | 6142 |
| COSPAR ID | 1972-061A |
| Alternative names |
MTS |
| Observing |