Explorer 46 - .
Payload: Meteoroid Technology Satellite. Mass: 136 kg (299 lb). Nation: USA.
Agency: NASA Langley.
Program: Explorer.
Class: Earth.
Type: Micrometeoroid satellite. Spacecraft: MTS.
Decay Date: 1979-11-02 . USAF Sat Cat: 6142 . COSPAR: 1972-061A. Apogee: 811 km (503 mi). Perigee: 492 km (305 mi). Inclination: 37.70 deg. Period: 97.70 min. Micrometeoroid tests. Spacecraft engaged in research and exploration of the upper atmosphere or outer space (US Cat B). .