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PHEMOS Objectives

Polar Highly Elliptical / Molniya Orbit Science (PHEMOS) Mission Phase 0/A Studies Mid - Term Review Meetings January 12-14th, 2011. PHEMOS Objectives.

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PHEMOS Objectives

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  1. Polar Highly Elliptical / MolniyaOrbit Science (PHEMOS) MissionPhase 0/A StudiesMid-TermReview MeetingsJanuary 12-14th, 2011

  2. PHEMOS Objectives • The purpose of the PCW mission is to provide robust 24/7 two-way communications capability to all of the Canadian North for high data rate (HDR) data and information products, potentially also low-data rate (LDR) communications capability, and also near-real time (NRT) meteorological information products about the North to users throughout Canada. These capabilities are particularly important for climate change studies and monitoring due to warming in Canada's North. • The PCW platform and its highly elliptical orbit provide significant scientific value and advantage. In order to advance potential Science payload concepts, CSA has solicited proposals for Phase 0 and Phase A studies that fall under the following categories: • Category A: Atmospheric Remote Sensing; • Category B: Geospace Imaging; and • Category C: In-situ space environment science. 4

  3. PCW Project Timeline Phase 0 completed: September 2008 Phase A Approved: November 2008 Phase A contract awarded: July 2009 Phase A Major Milestones: Phase A kicked-off: July 2009 Technology Readiness Assessment Review: October 2009 Mission Requirements Review: February 2010 Preliminary System Requirements Review: June, 2010 Phase A contract close out: March 2010 Critical Technologies development contracts award: March 2011 Phase B/C/D contract award: Mid 2012 (TBC) Launches: 2017 (TBC)

  4. PCW Phase A Extension 1 • PCW Phase A Extension 1 nowcompleted. • PHEMOS PayloadAccomodation • Provided the current best estimate for: • Orbit; Mass; Volume and form factor; Power; Downlink; Data storage and handling; need for externalaccomodation; Attitude stability and; Sources of interference. • Stillbaselinedat a 50kg, 100W and 30x30x30cm allocation • Withconsiderablemargin and/or degree of uncertainty • PHEMOS Costing and schedule (optional) • Have assumed a maximum cost enveloppe of $45M per spacecraft (TBC) • Excluding a risk allocation of 25% • For a total maximum mission cost (2 spacecraft), withrisk of $112.6M for PHEMOS (TBC) • This is a ROM, ceilingcost for PHEMOS and does not constitute a commitment • Otherconsiderationswill influence the final mission budget. • Schedule must be consistent with an integration to PCW

  5. Category Total Phase A Phase 0 (Phase 0 + Phase A) Category A: Atmospheric 2x $150,000 Remote Sensing Catego ry B: 1x $100,000 Geospace Imaging Category C: In - situ space environment science Foreseen funding Up to Up to 1x $400,000 1x $700,000 Up to Up to 1x $600,000 1x $400,000 1x $100,000 Total Phase 0 Funding: 0.5M$ Total Phase A Funding (Optional): 0.8M$ Total Phase 0 + A Funding (Optional): 1.3M$ 8

  6. Foreseen Way Forward • PHEMOS Review team to select Phase A candidates in 2 phases: • Team of evaluatorsled by CSA • March 2011 for Category A (ABB, MPB); • May 2011 for Categories B and C (U. Calgary, U. Alberta). • Selectionbased on the followingcriterion (TBC): • Mandatory: Accommodation, cost envelope, and schedule feasibility; • Gradedcriterion: Cost, Science return, Science to cost ratio, Orbit optimization, International partnership, Implementation Risks, Alignement with CSA priorities and, Synergy with primary payloads. • PHEMOS Phase A funding • Funding for Phase A is not yetapproved; • Category A Requestis for $400k withworkstarting in May 2011; • Category B and C Requestis for $400k withworkstarting in August 2011.

  7. Supplementary Material

  8. Spacecraft Concept (Core mission)

  9. Phase A Stowed Dimensions Phase A design is based on core mission scope only. Final PCW design not necessarily the same (will be based on scope in SOW for next project phase)

  10. Spacecraft Attitude Profile

  11. Communications Architecture Met data transmission Gateway Station Two Dual Ka & S band Antenna User Terminals 0.6-2.4 m Antenna Comm Area of Interest

  12. Ground Segment

  13. PHEMOS Categories Category A: Atmospheric Remote Sensing Proposed Science payload use remote-sensing techniques to measure emissions from atmospheric species. The scientific objective of the proposed Science payload need to be related to the chemistry, dynamics, and other processes of the neutral atmosphere. Other than this distinction, the present SOW places no constraint on the measurement techniques, detection wavelengths, and data acquisition methodology. Recognizing the Molniya orbit has been little used for atmospheric studies, Phase 0/A Studies in this category shall include a feasibility assessment that verifies the detectability of the proposed signals in Molniya orbit. 5

  14. PHEMOS Categories Category B: Geospace Imaging Proposed Science payload use the PCW platform to form instantaneous images of geospace for the purpose of studying mass and energy transport therein. Geospace, for the purpose of this SOW, is that part of the near-Earth space whose behavior is dominated by plasmas of different origins. Other than this distinction, the present SOW places no constraint on the measurement techniques, detection wavelengths, and data acquisition methodology. 6

  15. PHEMOS Categories Category C: In-situ space environment science Proposed Science payload observe the electromagnetic and charged particle environments at the PCW satellites. The scientific objective is to understand plasma-physical processes that control and change these environments and give rise to the so-called space weather, particularly in spaces traversed by the Molniya orbit. It is expected that the proposed payload should give a reasonably complete description of space environment state at the PCW satellite. Other than this expectation, the present SOW places no constraint on the types of instrument(s), frequency and energy ranges, and instrument(s) resolution. 7

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