John Martin May 13-17, 2002

1. Micro Arcsecond X-ray Imaging Mission, Pathfinder (MAXIM-PF) Opening Comments John Martin May 13-17, 2002

2. IMDC Study Goals • Material which can be used as a basis for future study by the MAXIM team • Each Discipline suggests future studies, building on this week’s work • It may be only a small step from MAXIM Pathfinder for the full MAXIM • Determine if it is reasonable to call this a 2015 launch • It is reasonable to do this, pending authorization and sufficient money • Produce a life-cycle cost estimate • Provided both as a grass-roots estimate and a parametric estimate • Refine the mission profile (e.g., orbit analysis, etc.) as contained in the prework and opening presentation • Concepts for Phase 1 and Phase 2 have been augmented and refined • Terms “Mode 1” and “Mode 2” have been used in some places, but should be replaced with “Phase 1” and “Phase 2” in future work • Identify required “technology miracles” and performance drivers • Miracles do not appear needed • Technology developments needed for MAXIM are same as needed for several other future missions MAXIM-PF, May 13-17, 2002Goddard Space Flight Center

3. These are Included in our “Standard” Work Package • Nice-looking mechanical diagrams, graphs and nice sketches showing results of the study • Included in the Mechanical presentation and supporting files • Graphs and other sketches • Included in many Discipline presentations • Disciplines cover these topics • MAXIM requirements that drive the subsystem being discussed • Subsystem configuration • Elements included (could be components, but great detail not expected) • Mass and cost estimates • Technologies required • Identify tall poles, if any (technology needed, but not likely to be developed without funding or other emphasis from MAXIM) • Identify items which are high cost in order to meet the requirements • Tradeoffs performed or “dead ends” encountered • Issues and items for future study • Delivery CD-ROM will include all analyses done by the IMDC this week • This presentation summarizes our work MAXIM-PF, May 13-17, 2002Goddard Space Flight Center

4. MAXIM Information • Following information in the LAI-MAXIM-PF Prework folder • Prework, dated 10 April 2002 (Prework Report.htm) • IMDC kickoff presentation on May 13, 2002 by Keith Gendreau (going-in-13may02.ppt) • Information presented by Keith Gendreau to the IMDC and ISAL team in February 2002 (PeriscopeDesignMAXIM.ppt) • Other background information files • Material from recent ISAL studies are also available • Files are on idcsvr3 in a folder called missions. The ISAL studies that apply to LAI-MAXIM-PF are LAI Beam Combo (M) and LAI Super Star Tracker. I have mapped a network drive on my computer, calling it drive N:, making it quick and easy to refer to these files • Our August 1999 MAXIM study is in the misdir folder • This is a moderately future, (15 yrs to launch) study of concepts and approaches; design details are important, but will probably be changed before construction actually begins MAXIM-PF, May 13-17, 2002Goddard Space Flight Center

5. Other Requested Trades or Studies • TDRSS Support vs. direct to ground (for early orbit?) • TDRSS often used for early orbit support of Launch and Early Orbit • Use of a TDRSS-like relay from L2 vs. use of DSN • TDRSS-like relay must be considered as a synergistic requirement by several L2 missions • TDRSS development for use at L2 far exceeds DSN cost for MAXIM MAXIM-PF, May 13-17, 2002Goddard Space Flight Center

6. Requested “Standard” Products • Spreadsheets, bullet charts, or other briefly stated information useful to support ongoing analysis of this potential mission • Information in the “final presentation” is a summary of work done by the discipline engineers • System mass, power and cost spreadsheets, using “real” data where available and typical data for elements lacking specific information • Actual values for mass, power and cost are used where known • Educated estimates used where specific data does not extist • Cost estimated using both grass-roots and parametric estimating methods • Files of supporting analysis (e.g., Excel spreadsheets) • Included on final CD-ROM • Power System Sizing • Included in Power presentation • Mechanical sketches of the detector, hub and free-fliers in the launch shroud, in-transit to L2,deployed for Phases 1 and 2 • Included in the Mechanical presentation • Additional graphic files included on the CD-ROM MAXIM-PF, May 13-17, 2002Goddard Space Flight Center

7. Analyses Show MAXIM to be an Advanced, but Feasible Concept • 1:00-1:05 Opening - John Martin • 1:05-1:25 System – Gabe Karpati • 1:25-1:35 Flight Dynamics – Steve Cooley • 1:35-1:45 Mechanical – Dave Peters • 1:45-1:55 Thermal – Wes Ousley • 1:55-2:00 Launch Vehicle – Larry Phillips • 2:00-2:10 Attitude Control – Eric Stoneking • 2:10-2:20 Propulsion – Bob Estes • 2:20-2:30 Power – Bob Beaman • 2:30-2:40 Flight Software – Kequan Luu • 2:40-2:50 Data Systems – Ron Vento • 2:50-3:00 Mission Operations – Tim Rykowski • 3:00-3:10 Mission Success – Dick Bolt • 3:10-3:20 Parametric Cost Analysis – Bill Lawson • 3:20-3:30 Wrap-up - John Martin MAXIM-PF, May 13-17, 2002Goddard Space Flight Center