{"project":{"acronym":"PERISCOPE","projectId":91420,"title":"PERIapsis Subsurface Cave Optical Explorer","primaryTaxonomyNodes":[{"taxonomyNodeId":10556,"taxonomyRootId":8816,"parentNodeId":10547,"level":3,"code":"TX01.3.9","title":"Hybrid Electric Systems","definition":"Hybrid electric systems use a turbine driven generator combined with electrical energy storage as the power source.","exampleTechnologies":"Series/parallel partial hybrid","hasChildren":false,"hasInteriorContent":true}],"startTrl":2,"currentTrl":2,"endTrl":2,"benefits":"
The proposed phase 2 work will result in a clearly defined mission with a well defined target, spacecraft, and instrument. The instrument concept can be further developed via the PICASSO ROSES call and further concepts involving the instrument can be explored. Selecting this Phase 2 proposal will open a whole new avenue of exploration for the solar system. The processes we will use in the Phase 2 are well known to NASA. JPL's A team and Team x are recognized across NASA as valuable processes to develop mission concepts, and the instrument development plan continues a common process of instrument development at a university in partnership with a NASA center for mission development. Further the mission is likely to be within the Discovery cost cap, and possibly in the Explorer program cost cap.
","description":"PERISCOPE is an instrument and mission concept with the goal of investigating and mapping lunar skylights from an orbiting platform using photon time-of-flight imaging. A spacecraft in a very low orbit would direct laser pulses into the lunar skylights, detect light returning to the spacecraft after multiple reflections in the cave, and transmit a summary of those data back to the Earth. A team on the ground would process that data to develop a 3d map of the interior void of the skylight that was at all times beyond the direct line of sight of the spacecraft. In phase I we showed the theoretical feasibility of this mission concept with a variety of simulations and analytical tools. In phase II we intend to bring this concept to a level capable of supporting a full mission proposal. We will perform more detailed trade studies, analyses, and experiments using real world materials as analogous to expected lunar subsurface material as possible.
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