urn:nasa:pds:context:instrument:pse.a11e 1.0 1.16.0.0 Product_Context 2021-10-14 1.0 Initial version. urn:nasa:pds:context:instrument_host:spacecraft.a11e instrument_to_instrument_host Apollo 11 Preliminary Science Report, NASA SP-214, 204 pages, published by NASA, Washington D.C., 1969. Apollo Scientific Experiments Data Handbook, NASA Technical Memorandum X-58131, JSC-09166, published by NASA Johnson Space Center, Houston, Texas, Aug. 1974. reference.APOLLOSEDH1974 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 11 Passive Seismic Experiment (PSE) Seismometer The Apollo 11 Passive Seismic Experiment was the first seismometer placed on the surface of the moon. It detected lunar "moonquakes," providing information about the internal structure of the Moon. The seismometer returned data for only three weeks; more advanced seismometers were deployed at the Apollo 12, 14, 15, and 16 landing sites.