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X-Ray WFI Mission Study Summary. Team Lead Mark Steiner 16 – 20 April 2012. X-ray WFI Presentation Timeline. MDL Mission Study Summary. MDL developed mission concept for Wide Field Imager configuration, based on customer inputs MDL team presented formal , final report out to customer team
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X-Ray WFI MissionStudy Summary Team Lead Mark Steiner 16 – 20 April 2012
MDL Mission Study Summary • MDL developed mission concept for Wide Field Imager configuration, based on customer inputs • MDL team presented formal, final report out to customer team • Presentations were reviewed by MDL team for internal consistency on Thursday
Mission Summary – Final Orbit parameters – L2, 800,000 km Lissajous LV – EELV Launch date – 1/1/2021 Mission Lifetime – 3 year minimum / 5 year goal Mass estimate – payload: 94.2 kg (3 @ 31.4 kg each) (Instrument), 1079 kg (3 @ 360 kg each) (X-Ray Mirror) – 1173 kg total Power estimate – payload: 74 W total (Instrument) , 300 W (X-Ray Mirror) – W total Mission class – B Disposal plans – Same as Grating Mission (1 m/s delta-V at EOL) Study name: MDL X-ray Grating WBS: 244904.04.10.01.02 ”MDL X-ray WFI” in remarks
MDL Areas of Concentration/Study Drivers Possible Trades No system level trades identified or worked • Increase slew rate to 60 degrees in 30 minutes rate without driving ACS or Power system? • Field of regard: 30 deg pitch minimum, capture impact if go to 45 deg
Study Plan for the week • Monday AM: review study expectations and identify key issues PM: 1) define ConOps 2) discuss derived subsystem requirements and ask questions • Tuesday AM: System drivers – TBD subsystems PM: Rest of subsystems • Wednesday AM: I&T Flow, Mission Ops PM: Presentation preparation • Thursday AM: Check presentations for consistency PM: Finish presentations • Friday Presentation with customers, including remote customer team • Monday following 1) Lessons learned, process improvements, lab status, etc. 2) Finalize presentations and wrap up the study
X-ray WFI Mission Level Schedule Period 4 (3 months) Period 5 (36 (+24) months) Preliminary Design Final Design Mission Cleanup Bus & P/L Fab/Assy/Test Payload Primary (+ extended) Ops Bus & P/L I&T System Definition Prep for Launch Launch & Checkout Phase B Start 8/8/2016 CDR 5/1/2018 PDR 7/1/2017 Project Start 8/8/2014 Phase C Design Phase B Definition Phase A Preliminary Analysis Period 1 (24 months) Mission Definition 10months 24 months 11months Launch 1/1/2021 On-station L2 4/1/2021 Disposal 4/1/2026 Period 3 (9 months) NOTE: 28 day months for scheduling prior to launch Period 2 (25.5 months) Period 6 (3 months) Phase D-1 Subsystem Development and Spacecraft Integration and Test Funded Schedule Reserve 7 mo. Phase E/F Operations Phase D-2 Launch & Checkout Period 5-1 (1 month) 14mo 9.5mo 2.5mo 63 months 32months 3months