Lunar Prospector: Science Data Center

1
Lunar ProspectorScience Data Center

• Group 3
• System/Software Requirements
• Revised 3/23/98
• Prepared for NASA

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Overall Objectives LP mission

• Obtain scientific data about the Moon
• Refine and extend findings from previous missions
• Analyze data that may be useful to future
  missions

3
Overall Objectives LP mission (contd)

• Implement the Discovery Program guidelines of
  cheaper, better, faster
• Innovative education and outreach programs

4
Overall Objectives SDC

• Provide secure storage of all mission data
• Process and manage raw mission data
• Provide data interface and delivery for end-users

5
SDC Objectives

• Provide secure storage of all LP mission data
• Process and manage raw LP mission data
• Provide data interface and delivery to SDC end
  users

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System Context
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Capabilites and Functions

• Shall maintain link to LP Data Switch
• From LP Data Switch, SDC shall
• receive all science data
• receive all spacecraft state data
• receive all GS commands
• receive all simulation data

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Capabilites and Functions (contd)

• Shall maintain SDA
• Within the SDA, SDC shall
• store raw data
• maintain relational database for processed data
• Shall maintain private network for data access
• Shall store data on CD-ROM for transfer to NSSDC

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Capabilites and Functions (contd)

• Shall maintain public website
• SDC shall make available
• current science data
• current LP status data
• current LP location
• updates on all current information
• overview of LP mission
• historical background of LP mission

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Capabilites and Functions (contd)

• Shall maintain public website (contd)
• SDC shall make available
• information about LP design and construction
• links to other LP-related sites
• information about Project Moonlink

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System/Programmatic Constraints

• Schedule
• Systems must be in place before simulation
• Hardware
• SDC will use existing ARC hardware
• Data Format
• SDA will use CDF for processed data
• Protocols
• Private network NASA internal network protocol

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System Structure
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Overall Domain Model
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LP Data Switch Interface

• Purpose Input of all mission data to the SDC
  from DSN
• ConditionsContinuous input
• Data Items Raw data (bit stream)

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Public Interface

• Purpose Promote public awareness of and interest
  in the LP mission.
• Conditions Upon website hit.
• Data Items Text articles, diagrams, graphs, web
  links, downloadable Project Moonlink lesson
  plans, and Project Moonlink registration form.

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Public Interface Use Cases
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Science Team/GS Interface

• Purpose To give PIs and GS personnel access to
  processed mission data
• Conditions Upon request (over private, internal
  NASA network)
• Data Items Science and Status data in CDF

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Science Team/GS Use Cases
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NSSDC Interface

• Purpose Permanent archiving of LP mission data.
• Conditions Weekly intervals.
• Data Items Set of CD-ROMs containing mission
  data in CDF.

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NSSDC Use Case
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Future Capabilities

• Packaging scientific data for educational
  organizations
• Reusing system for future missions