Item No.LocationSummaryInd./Org.Due Date12.3Drawing # for Reference DrawingsPhilip Luers / Code 5619/1/05INTRODUCTIONPURPOSEINSTRUMENT ELECTRICAL SYSTEM OVERVIEWDEFINITIONS AND TERMINOLOGYDOCUMENTATIONAPPLICABLE DOCUMENTSREFERENCE DRAWINGSLRO ELECTRICAL SYSTEM REQUIREMENTSPOWERPower ProfileInstrument Power SpecificationsSYSTEM GROUNDING REQUIREMENTSEMI/EMC REQUIREMENTSDATA AND SIGNAL INTERFACESMULTIPACTION AND CORONADESIGN FOR RADIATIONCHARGING AND DISCHARGING REQUIREMENTSHARNESS REQUIREMENTSCRATER TEMPERATURE SENSORSCRATER OPERATIONAL HEATERSCRATER SURVIVAL HEATERSEXTERNAL INTERFACESCONNECTOR/PIN OUT DEFINITIONCRaTER Power ConnectorCRaTER Housekeeping ConnectorCRaTER 1553 ConnectorsAppendix A. Abbreviations and Acronyms431-ICD-000094Revision -Effective Date: To be added upon CM ReleaseExpiration Date: To be added upon CM ReleaseiCHECK WITH RLEP DATABASE AT:http://vsde.gsfc.nasa.gov/index.jspTO VERIFY THAT THIS IS THE CORRECT VERSION PRIOR TO USE.Robotic Lunar Exploration ProgramLunar Reconnaissance OrbiterCosmic Ray Telescope for the Effects of Radiation(CRaTER) to Spacecraft ElectricalInterface Control Document (ICD)July 13, 2005DRAFTGoddard Space Flight CenterGreenbelt, MarylandNational Aeronautics andSpace Administration431-ICD-000094Revision -Effective Date: To be added upon CM ReleaseExpiration Date: To be added upon CM ReleaseiiCHECK WITH RLEP DATABASE AT:http://vsde.gsfc.nasa.gov/index.jspTO VERIFY THAT THIS IS THE CORRECT VERSION PRIOR TO USE.CM FOREWORDThis document is a Lunar Reconnaissance Orbiter (LRO) Configuration Management (CM)-controlled document. Changes to this document require prior approval of the applicableConfiguration Control Board (CCB) Chairperson or designee. Proposed changes shall besubmitted to the LRO CM Office (CMO), along with supportive material justifying the proposedchange. Changes to this document will be made by complete revision.Questions or comments concerning this document should be addressed to:LRO Configuration Management OfficeMail Stop 431Goddard Space Flight CenterGreenbelt, Maryland 20771431-ICD-000094Revision -Effective Date: To be added upon CM ReleaseExpiration Date: To be added upon CM ReleaseCHECK WITH RLEP DATABASE AT:http://vsde.gsfc.nasa.gov/index.jspTO VERIFY THAT THIS IS THE CORRECT VERSION PRIOR TO USE.iiiSignature PagePrepared by: _________Philip LuersRLEP Avionics SystemsGSFC/NASA, Code 561Reviewed by: _________Mike Pryzby DateLRO Spacecraft Systems EngineerSwales Aerospace Approved by: _________Arlin Bartels DateLRO Payload ManagerNASA/GSFC, Code 430 ________Craig Tooley DateLRO Project ManagerNASA/GSFC, Code 430 _________Robert Goeke DateCRaTER Project EngineerMIT / Kavli Institute431-ICD-000094Revision -Effective Date: To be added upon CM ReleaseExpiration Date: To be added upon CM ReleaseCHECK WITH RLEP DATABASE AT:http://vsde.gsfc.nasa.gov/index.jspTO VERIFY THAT THIS IS THE CORRECT VERSION PRIOR TO USE.ivROBOTIC LUNAR EXPLORATION PROGRAMDOCUMENT CHANGE RECORDSheet: 1 of 1REVLEVELDESCRIPTION OF CHANGEAPPROVEDBYDATEAPPROVEDDraft 0431-ICD-000094Revision -Effective Date: To be added upon CM ReleaseExpiration Date: To be added upon CM ReleasevCHECK WITH RLEP DATABASE AT:http://vsde.gsfc.nasa.gov/index.jspTO VERIFY THAT THIS IS THE CORRECT VERSION PRIOR TO USE.ItemNo.Location Summary Ind./Org. Due Date1 2.3 Drawing # for Reference Drawings PhilipLuers /Code 5619/1/05Table 1-1. List of TBDs/TBRs431-ICD-000094Revision -Effective Date: To be added upon CM ReleaseExpiration Date: To be added upon CM ReleaseviCHECK WITH RLEP DATABASE AT:http://vsde.gsfc.nasa.gov/index.jspTO VERIFY THAT THIS IS THE CORRECT VERSION PRIOR TO USE.TABLE OF CONTENTSPage1.0 Introduction..........................................................................................................................11.1 Purpose..................................................................................................................... 11.2 Instrument Electrical System Overview....................................................................... 11.3 Definitions and Terminology...................................................................................... 22.0 Documentation.....................................................................................................................22.1 Applicable Documents............................................................................................... 22.2 Reference drawings................................................................................................... 23.0 LRO Electrical System Requirements...................................................................................23.1 Power....................................................................................................................... 33.1.1 Power Profile.................................................................................................43.1.2 Instrument Power Specifications......................................................................43.2 System Grounding Requirements................................................................................ 43.3 EMI/EMC Requirements............................................................................................ 43.4 Data and Signal Interfaces.......................................................................................... 43.5 Multipaction and Corona............................................................................................ 53.6 Design For Radiation................................................................................................. 53.7 Charging and Discharging Requirements..................................................................... 53.8 Harness Requirements............................................................................................... 53.9 CRaTER Temperature Sensors................................................................................... 53.10 CRaTER Operational Heaters..................................................................................... 53.11 CRaTER Survival