urn:nasa:pds:context:instrument:side.a12a 1.0 1.7.0.0 Product_Context Apollo 12 SIDE Apollo 12 Suprathermal Ion Detector 2018-10-04 1.0 Created by the NASA Space Science Data Coordinated Archive. urn:nasa:pds:context:instrument_host:spacecraft.a12a::1.0 instrument_to_instrument_host urn:nasa:pds:apollodoc:a12doc:a12a_side_overview instrument_to_document Apollo 12 Preliminary Science Report, NASA SP-235, 227 pages, published by NASA, Washington D.C., 1970. reference.APOLLO12A1970 Apollo Scientific Experiments Data Handbook, JSC-09166, NASA TMX-58131, August 1974 (revised April 1976), in Johnson Space Center History Office. reference.NASATMX581311976 Freeman, J.W., H. Balsiger, and H.K. Hills, Suprathermal Ion Detector Experiment (Lunar Ionosphere Detector), Apollo 12 Preliminary Science Report, NASA SP-235, pages 75 to 82, Washington D.C., 1970. Bates, J.R., W.W. Lauderdale, and H. Kernaghan, ALSEP termination report, NASA Reference Publication Series, NASA-RP-1036, 162 pages, published by NASA, Washington, D.C., 1979. reference.BATESETAL1979 Apollo 12 Suprathermal Ion Detector Experiment Particle Detector not applicable not applicable Apollo 12 Suprathermal Ion Detector Experiment (SIDE) measured the energies and masses of positive ions reaching the lunar surface, including magnetospheric ions and those generated from ultraviolet ionization of the lunar atmosphere and from the free-streaming solar wind/lunar surface interaction.