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DEEP SPACE GATEWAY CONCEPT SCIENCE WORKSHOPFEBRUARY 27-MARCH 1, 2018 DENVER, COLunar seismology enabled by a Lunar Orbital Platform - GatewayFeb. 28, 2018Renee Weber, NASA Marshall Space Flight CenterC. R. Neal, University of Notre DameS. Kedar, M. Panning, B. Banerdt, NASA Jet Propulsion LaboratoryN. C. Schmerr, University of Maryland, College ParkM. Siegler, Planetary Science Institute, Southern Methodist University
Instrument Function Statement and Gateway UsageSTATEMENTINSTRUMENT/CONCEPT DETAILSFUNCTION STATEMENTScience objectives:Deploy a long-lived network of stationaryseismometers to the surface to monitorfor seismic shaking induced by artificialsources, natural tectonism and meteoriteimpacts. Quantify the amount anddistribution of seismicity Determine the detailed structureof the crust, mantle, and coreWHY IS THE GATEWAY THEOPTIMAL FACILITY FOR THISINSTRUMENT/RESEARCH?Gateway can enable seismologyenhancing observations:Lunar seismology is optimally enabled bya Gateway architecture that incorporatesa reusable lunar lander/ascent vehiclethat can deploy identical instrumentationat globally distributed locations PenetratorsActive source releaseLaser interferometrySurface monitoring (includinghigh-resolution imaging, impactflashes, SAR, altimetry)2DEEP SPACE GATEWAY CONCEPT SCIENCE WORKSHOP FEBRUARY 27-MARCH 1, 2018
Two basic conceptsSurface geophysical packagesvs.Gateway external payloadsJPL LUNETTE mission concept“releaseables”DEEP SPACE GATEWAY CONCEPT SCIENCE WORKSHOP FEBRUARY 27-MARCH 1, 20183
Basic Instrument Parameters – assuming surface geophysical packagePARAMETERILN (SOLAR/BATTERY)ILN (ASRG)FutureMASS (KG)2530 50kg (commercial?)VOLUME (M)---POWER (W)19.5 day / 7.8 nightUp to 74-THERMALREQUIREMENTSNight survival required ( 50 C operating)DAILY DATA VOLUME hundreds MB/day raw data generated (amount downlinked depends on comm. availability)CURRENT TRLTRL 4-6 for notional payload instrumentsWAG COST & BASIS2 stations under Discovery / 4 stations under New FrontiersNew FrontiersDURATION OFEXPERIMENT6 years6 years10 yearsOTHER PARAMETERS---DEEP SPACE GATEWAY CONCEPT SCIENCE WORKSHOP FEBRUARY 27-MARCH 1, 20184
Instrument Gateway Usage – “releaseables” (landers, penetrators, etc.)USAGEINSTRUMENT REQUIREMENTS & COMMENTSORBIT CONSIDERATIONSAppropriate for release of autonomous assets to lunar surfaceFIELD OF VIEW REQUIREMENTSN/AREQUIRES USE OF AIRLOCKN/ACREW INTERACTION REQUIRED?N/AWILL ASTRONAUT PRESENCE BE DISRUPTIVE?N/ADOES THE INSTRUMENT PRESENT A RISK TO THE CREWN/AOTHER CONSUMABLES REQUIREDN/ASPECIAL SAMPLE HANDLING REQUIREMENTSN/ANEED FOR TELEROBOTICS?Possible use of arm or other deployment mech. for asset releaseOTHER REQUIREMNTS OF THE GATEWAY?Far-side stations would require comm. relay.JPL LUNETTE mission concept5DEEP SPACE GATEWAY CONCEPT SCIENCE WORKSHOP FEBRUARY 27-MARCH 1, 2018
Instrument Gateway Usage – external payloads (imagers, lasers, etc.)USAGEINSTRUMENT REQUIREMENTS & COMMENTSORBIT CONSIDERATIONSStable LLO (lasers/LROC); L2 halo for far-side impact flash monitoringFIELD OF VIEW REQUIREMENTSN/AREQUIRES USE OF AIRLOCKN/ACREW INTERACTION REQUIRED?N/AWILL ASTRONAUT PRESENCE BE DISRUPTIVE?possiblyDOES THE INSTRUMENT PRESENT A RISK TO THE CREWN/AOTHER CONSUMABLES REQUIREDN/ASPECIAL SAMPLE HANDLING REQUIREMENTSN/ANEED FOR TELEROBOTICS?Possible for instrument pointing and stabilityOTHER REQUIREMNTS OF THE GATEWAY?N/A6DEEP SPACE GATEWAY CONCEPT SCIENCE WORKSHOP FEBRUARY 27-MARCH 1, 2018
References and Status of Work in this FieldBackground information and science drivers:1)2)3)International Lunar Network Final Report ILN Final Report.pdfLUNETTE: A Discovery-class Lunar Geophysical Network concept: 0.pdfEnabling technologies: dfStatus of current development efforts:4)5)6)7)8)9)10)Penetrator concept (LUNAR-A heritage): S0032063308004170Impact flash monitoring: f/3031.pdfLaser retroreflectors: 0.pdfPlanetary Broadband Seismometer: er/263006Seismometer to investigate ice and ocean structure: er/259995Magnetometer: f/3173.pdfHeat flow probe: f/3009.pdfInSight-leveraging:11) VBB12) SP13) HP37DEEP SPACE GATEWAY CONCEPT SCIENCE WORKSHOP FEBRUARY 27-MARCH 1, 2018
DEEP SPACE GATEWAY CONCEPT SCIENCE WORKSHOP FEBRUARY 27-MARCH 1, 2018 DENVER, CO Lunar seismology enabled by a Lunar Orbital Platform - Gateway Feb. 28, 2018 Renee Weber, NASA Marshall Space Flight Center C. R. Neal, University of Notre Dame S. Kedar, M. Panning, B. Banerdt, NASA Jet Propulsion Laboratory
