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Electrical

Electrical. Philip Luers NASA/GSFC Code 561 August 16-17, 2005. Electrical Systems Document Tree. Mission Requirements Document (431-RQMT-000004). Electrical Systems Specification (431-SPEC-000008). Delta II PPG (MDC 00H0016). C&DH EICD (431-ICD-000141). General Thermal Subsystem

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Electrical

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  1. Electrical Philip Luers NASA/GSFC Code 561 August 16-17, 2005

  2. Electrical Systems Document Tree Mission Requirements Document (431-RQMT-000004) Electrical Systems Specification (431-SPEC-000008) Delta II PPG (MDC 00H0016) C&DH EICD (431-ICD-000141) General Thermal Subsystem Specification (431-SPEC-0000091) PSE EICD (431-ICD-000142) CRaTER EICD (431-ICD-000094) PDE EICD (431-ICD-000143) Star Tracker EICD (431-ICD-000144) DLRE EICD (431-ICD-000095) Power, 1553, SpaceWire, 1 pps, RS-422, Grounding, Isolation, Shielding, Charging Inertial Meas. Unit EICD (431-ICD-000145) LAMP EICD (431-ICD-000096) Communications EICD (431-ICD-000146) LEND EICD (431-ICD-000097) LOLA EICD (431-ICD-000098) Propulsion EICD (431-ICD-000147) LROC EICD (431-ICD-000099) Reaction Wheels EICD (431-ICD-000148) Heaters, Thermistors Gimbal Controller EICD (431-ICD-000149) Solar Array EICD (431-ICD-000150) Battery EICD (431-ICD-000151) Mini-RF EICD (431-ICD-000152) LRO SpaceWire Spec. (431-SPEC-000103) Electrical Systems Requirements Document (431-RQMT-000140) Specific Interfaces Connectors, pinouts Specific Interfaces Connectors, pinouts

  3. Lunar Reconnaissance Orbiter (LRO)Electrical SystemLevel 2 Flow Down KeyPower Requirements

  4. Lunar Reconnaissance Orbiter (LRO)Electrical SystemLevel 2 Flow Down KeyGrounding Requirements

  5. Lunar Reconnaissance Orbiter (LRO)Electrical SystemLevel 2 Flow Down KeyData Requirements

  6. Lunar Reconnaissance Orbiter (LRO)Electrical SystemLevel 2 Flow Down KeyThermal Requirements

  7. Lunar Reconnaissance Orbiter (LRO)Electrical SystemLevel 2 Flow Down KeyMisc. Interface Requirements

  8. Lunar Reconnaissance Orbiter (LRO)Electrical SystemLevel 2 Flow Down KeyInstrument Requirements

  9. Lunar Reconnaissance Orbiter (LRO)Electrical SystemLevel 2 Flow Down KeySpacecraft Requirements

  10. Lunar Reconnaissance Orbiter (LRO)Electrical SystemLevel 2 Flow Down KeySpacecraft Requirements

  11. Lunar Reconnaissance Orbiter (LRO)Electrical SystemLevel 2 Flow Down KeyTechnical Demonstration Requirements

  12. Block Diagram (Data)

  13. PSE OM-A PSE OM-B PSE OM-C USA1 (2 A) USB1 (2 A) USC1 (2 A) TT&C S-band RX C&DH Comm Card C&DH USA2 (5 A) USB2 (5 A) USC2 (5 A) IRW 1 IRW 3 IRW 4 USA3 (5 A) USB3 (5 A) USC3 (5 A) IRW 2 S/C Surv Htrs Prime S/C Surv Htrs Red A4 (5 A) B4 (5 A) C4 (5 A) NC Pyro Valves OPEN Prop Catbed Htrs Instr Surv Htrs A5 (10 A) B5 (10 A) C5 (10 A) Prop Htrs Red Prop Htrs Prime Ka-band TX A6 (15 A) B6 (15 A) C6 (15 A) Prop Valve Actuator PDE S/C Operational Htrs A7 (2 A) B7 (2 A) C7 (2 A) SSR Gimbal Control SA & HGA Release & Deploy A8 (1 A) B8 (1 A) C8 (1 A) Unassigned CRaTER LEND A10 (5 A) B10 (5 A) C10 (5 A) LROC Optics Decon Mini-RF Instr Operational Htrs A11 (1 A) B11 (1 A) C11 (1 A) ST 2 ST 1 Unassigned A12 (2 A) B12 (2 A) C12 (2 A) TT&C S-band TX DLRE Surv Htr DLRE Main A13 (2 A) B13 (2 A) C13 (2 A) IMU LAMP Red DLRE Operational Htrs A14 (2 A) B14 (2 A) C14 (2 A) Unassigned LOLA LAMP Prime A15 (2 A) B15 (2 A) C15 (2 A) Pressure Xducer Gimbal Htrs Red LROC A16 (2 A) B16 (2 A) C16 (2 A) NC Pyro Valves CLOSE Deploy Htrs Gimbal Htrs Prime +28V Bus Backplane PSE Monitor Card Solar Array Solar Array Module Battery Block Diagram (Power)

  14. By Analysis Derating for current carrying capability Transmission line (RF) of high-speed signals (ex: SpaceWire) By Test Fit check on spacecraft mock-up Continuity and High Potential (Insulation/Resistance) for workmanship Network test (RF, SpaceWire, 1553) Bakeout S/C Level Integration Safe-to-mate - as part of subsystem integration Functional - as part of subsystem integration Orbiter Level EMI/EMC, Thermal Vacuum, Vibration Verification

  15. Electrical Systems requirements are understood Electrical ICDs are in process some into CM, some in internal review Electrical Systems requirements are easily met Standard harness materials and processes We are ready to proceed with design Summary

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