Space Technology GSFC 5 Tomorrow s Technology Today Section

Space Technology GSFC 5 “Tomorrow’s Technology Today” Section 4. 0 Section 3. 0 Electrical Systems Project Introduction Dr. Douglas D. Mc. Lennan Project Manager ST 5 PDR 6/19 -20/01 2001 ST 5 PDR June 19 -20,

GSFCC Project Organization Chart Chief Tech/Systems Mgr: Eric Finnegan System Eng: Jamie Esper (Swales) Parts Eng Lead: Bruce Meinhold (J&T) Parts Eng. : Norman Siddigi Project Mgr: Deputy Project Mgr: Mission Business Mgr: Project Secretary: Project Scientist: Doug Mc. Lennan Rob Lilly Tracy Parlate Denise Gramlich Jim Slavin Systems Assurance Manager: Ron Perison System Safety Engineer: Rick Stickle (SRS) Configuration Manager: Paula Everson (Boeing) Reliability Eng. Lead: Walter Thomas Contamination Control Mgr. : Sharon Straka Radiation Eng. Lead: Christian Poivey Radiation Eng. : Bryan Fodness Ground Systems/MO&DA Irene Bibyk Observatory/I&T Manager Eric Krupacs Launch Vehicle Manager Clyde Woodall Mission Ops Eng: Steve Odendhl (Honeywell) Sat. Track COTR: Rodger Able EPD Instr Lead: William Browne Propulsion Lead Mike Rhee Flight S/W Lead: David Leucht KSC Launch Serv: Garrett Skrobot CCNT Tech Lead: Eric Finnegan GPS Eng: J. Simpson I&T Lead: Tom Gostomski Thermal Lead: Donya Douglas Var-E COTR: T. Swanson FLASAT/EGSE Eng: EJ Bickley Verification Mgr. : J. Smith Mechanical Lead: Peter Rossoni Mech Eng: C. Collins GN&C Lead: Sam Placanica Electronic Eng: D. Raphael FPGA Eng: T. Winkert CULPRIT COTR: P. Lures Power Lead: Karen Castell Magnetometer Eng : A. Russo Flight Dynamics Eng. : M. Concha ACS Design Eng: M. Woodard Elecl & Harness Lead: Walter Bradley (Orbital) C&DH Lead: George Jackson Solar Array Eng: J. Lyons Power Elec. Eng. : A. Hernandez-Pelle Li-Ion Battery: K. Castell Elec Systems: M. Davis Electrical Eng: J. Caldwell Flex Harmess COTR : Lilly R. RF Comm Lead: Victor Sank (QSS) RF Comm. Eng: S. Smith (QSS) Transponder COTR: D. Israel ACS Design Eng: J. Morrissey Notation Damper Eng : N. Rubin Sun Sensor Eng. : F. Witten As of: 0501 ST 5 PDR June 19 -20, 2001 3 -2

GSFCC Internal Web Page • Address: st 5. gsfc. nasa. gov • Intranet Page - outside access by approval only Contents: Requirements Matrix Configuration Mgmt Drawing Mgmt Working Documentation Electronic Library Risk Mgmt RFA Tracking Project Status Educational Outreach ST 5 PDR June 19 -20, 2001 3 -3

GSFCC Systems Concept Review • Completed May 10 and 11, 2000 • Resulted in 104 Request for Actions (RFAs) - RFAs remaining will be closed as a result of this PDR - Disposition of all RFAs located in SCR binder and on the ST 5 Web Page (st 5. gsfc. nasa. gov) • SCR Presentation located in SCR binder and the ST 5 Web Page ST 5 PDR June 19 -20, 2001 3 -4

GSFCC Peer Reviews Subsystem Date Launch Vehicle Mid. Term Review (Boeing &LM) Delta Transponder PDR Variable Emittance Coatings PDR Systems Peer Review Launch Vehicle Final Review Deployable Subsystems Review PSE Schematic Review Thermal Peer Review GN&C/Propulsion Peer Review Mechanical Peer Review I and T Peer Review Communications Peer Review Power System Peer Review Safety Review Board CCNT PDR Electrical Peer Review Mission/Ground Operations Peer Review C&DH Peer Review Flight Software Peer Review Transponder PDR January 16 -17, 2001 January 31, 2001 March 7, 2001 March 29, 2001 April 4 -5, 2001 April 17, 2001 April 26, 2001 May 4, 2001 May 18, 2001 May 21, 2001 May 31, 2001 June 27, 2001 July 2001 August 15, 2001 September 2001 October 19, 2000 ST 5 PDR June 19 -20, 2001 3 -5

GSFCC Project Master Schedule 2001 CY Activities CM J F M A M J J 2002 A S O N D J PDR Selected Mission Milestones F M A M J J 2003 A S O N CDR Sub. System Simulators, Bread Boards (BB) Engr Models, and. Engr Test Units (ETU)Dsgn, Fab, Assy, and Test , Facilities, GSE, Harness’s , + Procedures Facility Ready and. Procs Complete Initial Simulations, Bread Boards, and Engr Models I+T (Validates Technology Maturity, Bus Compatability; and Flight S/W, H/W, and Sim and Bread Board Testing Verifies: Ground Systems Compatibility) * Power On/Off Procedures * * F M A M J J A Sims, BBs, and EM I + T S O N D LRD PSR Sim / BB / EM Configurations * C+DH BB * PWR BB * CCNT Sim and EM * DSS Sim * Thruster Sim * Magnetometer Proto * Xponder/ Rcvr Sim * VEC BBs * Flt S/W Build 1 * GN+C Sim * Prototype Structures, Deployer, and Mechanisms * ASIST Rev 2 Flat. Sat Sub. System Development D J PER Flight Software, Ground Software, and Hardware Test Bed Command Telemetry Interfaces Initiates STOL and TLM Page Development Enables Virtual Recorder Data Play Back CGS Timing Test Observatory Flight Unit # 1 FU’s 1, 2, + 3 Subsys Fab , Assy, + Test Subsystem Deliveries Flights 1, 2, and 3 Observatory # 1 Subsystem/ Instrument Integration Observatory # 1 Environmental Tests FU #1 Environmental Test Program * EMI/EMC Testing S/C Compatability Tests * Magnetic Tests * 3 Axis Vibration Test * Shock Test * Thermal Balance /Thermal Vacuum Tests * Spin Balance and Mass Properties * RF Compatibility Testing I+T Flight and Ground Software Test Bed Env’l Tests Observatories # 2 + # 3 Observatorys’ #’s 2 + # 3 Subsystem / Instrument Integration I+T Constellation Test Observatorys’ # 2 + # 3 Environmental Tests Schedule Reserve BP + S / Launch Operations FU #s 2 + 3 Environmental Test Program * EMI/EMC S/C Compatability Tests * Vibration and Shock Tests * Alignments/Deployments * RF Compatibility Tests * Thermal Vac Test…No Thermal Balance * Spin Balance / Mass Properties * Magnetic Test Env’l Tests Schedule Reserve 2. 5 Months Launch as of May 22, 2001 ST 5 PDR June 19 -20, 2001 3 -6

GSFCC Project Unique Characteristics • NMP Mission with Validation Requirements • S/C is a key “Technology” for future constellation missions • Our design strikes a balance between validation needs and future micro-satellite bus development – Power Management – Use of Geo-transfer Orbit ST 5 PDR June 19 -20, 2001 3 -7