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Apollo 15 ALSEP anomalies

Show simple item record Urban, Joseph J.‏
dc.coverage.spatial Moon 2018-05-21T17:23:22Z 2018-05-21T17:23:22Z 1972-08-15
dc.description.abstract Since deployment of the Apollo 15 ALSEP, various anomalous events have occurred within the package. Certain of these events appear to be cyclical in nature, resulting from the inexorable temperature changes that occur during each lunar cycle. These events are approximately predictable based on past occurrences. Other events although influenced by changing temperatures do not occur consistently enough to be classified as periodic. Finally, there are those events that occur sporadically over the entire lunation. Most notable of these are functional changes due to spurious commands generated within the command receiver.
dc.description.tableofcontents LSM Field Sensor Heads -- LSM Y-Axis off scale low -- PSE Temperature (DL07) ON/OFF Scale -- SIDE Mode Changes and Register Loads -- HFE TREF 2 (TCR2) Valid/Invalid -- Spurious Functional Changes -- SWS Anomalies.
dc.format.extent 26 pages
dc.format.mimetype application/pdf
dc.language.iso en
dc.publisher Bendix Aerospace Systems Division
dc.relation.ispartofseries Letter ; no. 9753-111
dc.subject.lcsh Apollo Lunar Surface Experiments Package
dc.subject.lcsh Moon--Exploration
dc.title Apollo 15 ALSEP anomalies
dc.title.alternative Apollo 15 Apollo Lunar Surface Experiments Package anomalies
dc.type Technical report
dc.description.version Rev. E

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    Apollo Lunar Surface Experiment Package (ALSEP) Documents

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