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NASA's Beyond Einstein Program An Architecture for Implementation (2007) / Chapter Skim
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Appendix E: Request for Information to Mission Teams
Pages 146-151

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From page 146...
... Questions requesting further clarification were sent at later dates to individual mission teams, based on their responses to this RFI. Instructions for Responding The committee requests that mission teams respond to the following questions as completely as possible.
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From page 147...
... . Optional details -- If you have answers to the following detailed questions, please provide: For the science instrumentation, describe any concept, feasibility, or definition studies already performed (to respond you may provide copies of concept study reports, technology implementation plans, etc.)
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From page 148...
... Mission lifetime mos Maximum eclipse period min Spacecraft dry bus mass and contingency kg, % Spacecraft propellant mass and contingency kg, % Launch vehicle Launch vehicle mass margin kg, % Spacecraft bus power and contingency by subsystem W, % Mass weighted reuse percentage of payload and spacecraft subsystem components % Mass weighted redundancy of payload and spacecraft subsystem components SPACECRAFT IMPLEMENTATION Please answer the following as completely as possible: • Describe the spacecraft characteristics and requirements. Include, if available, a preliminary description of the spacecraft design and a summary of the estimated performance of the spacecraft.
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From page 149...
... Sensor and actuator information (precision/errors, torque, momentum storage capabilities, etc.) Command and Data Handling Spacecraft housekeeping data rate, kbps Data storage capacity, Mbits Maximum storage record rate, kbps Maximum storage playback rate, kbps Power Type of array structure (rigid, flexible, body mounted, deployed, articulated)
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From page 150...
... and gain(s) , DBi Spacecraft transmitter peak power, watts Downlink receiving antenna gain, DBi Transmitting power amplifier output, watts Uplink Information Value, Units Number of uplinks per day Uplink frequency band, GHz Telecommand data rate, bps S/C receiving antenna type(s)
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From page 151...
... Total cost $ $ $ $ $ $ $ $ $ Contributions Concept study Science Instrument A Instrument B Spacecraft Ground data system development MSI&Tb Launch services MO&DAc Education/outreach Reserves Other (specify) Total contributions $ $ $ $ $ $ $ $ $ Total mission cost $ a Costs should include all costs including any fee.
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Key Terms

  • mission design
  • mission operations
  • launch vehicle
  • mission teams
  • concept study

  • please answer
  • data rate
  • spacecraft subsystem
  • design table
  • technology implementation

  • mass weighted
  • storage capacity
  • scientific objectives
  • technical maturity
  • ground data

  • instrument operations
  • maximum storage
  • subsystem components
  • performance requirements
  • spacecraft implementation

  • science instrumentation
  • mission cost
  • frequency band
  • total mission
  • definition studies

  • uplink information
  • detailed questions
  • bus mass
  • receiving antenna
  • dbi spacecraft


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