A PFS (Particles and Fields Subsatellite) was released from both Apollo 15 and 16 into lunar orbit to collected data on particles and fields in
the Moon's vicinity.
| spacecraft |
release date |
mass (kg) |
| PFS, Apollo 15 |
Aug 4, 1971 |
36 |
| PFS, Apollo 16 |
Apr 24, 1972 |
36 |
