urn:nasa:pds:context:instrument_host:spacecraft.p8 1.0 1.8.0.0 Product_Context P8 P8 Pioneer C Pioneer C Pioneer 8 was also known as Pioneer C. 1967-123A Pioneer 8 This is the NSSDCA/COSPAR ID. urn:nasa:pds:context:investigation:mission.pioneer_8 instrument_host_to_investigation urn:nasa:pds:pioneerdoc:p8doc:p8_instr_host_overview instrument_host_to_document 10.1016/j.pss.2011.04.005 Siddiqi, A. A., Deep Space Chronicle: A Chronology of Deep Space and Planetary Probes 1958-2000, Monographs in Aerospace History, No. 24, NASA SP-2002-4524, 256 pages, published by NASA, Washington, D.C., 2002. Pioneer 8 Spacecraft Pioneer 8, also known as Pioneer C, was launched on 13 December 1967 into a heliocentric orbit to study interplanetary space with a primary focus to collection data on magnetic fields, plasma, and cosmic rays.