AMPS

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AMPS
CSC

• Creating Simplicity in a
• Complex World

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Agenda for Presentation

• AMPS History Synopsis
• Basic Concepts
• What is AMPS?
• AMPS Overall Capabilities
• AMPS Functional Capabilities
• Appendix
• NASA Environment
• MOPSS Overview
• AMPS Features Description

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AMPS History Synopsis

• AMPS (Automated Mission Planning and Scheduling
  system) began as a result of the award of NASA
  Research Agreements to develop an abstract
  planning prototype for upcoming constellation
  missions. In response to current mission needs
  we have added the requirement to develop
  capabilities that are immediately applicable to
  todays missions.
• AMPS currently is an integrated hybrid of new
  AMPS components and MOPSS components.
  Eventually, as missions currently supported by
  MOPSS are decommissioned, AMPS will replace
  MOPSS.

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Basic Concepts

• Abstract planner
• allows science and mission planners to specify
  high level goals for the constellation or
  spacecraft.
• determines individual spacecraft directives to
  carry out the goals.
• Dynamic scheduler
• uses expert system rules to automatically
  generate/regenerate events (commands, activities,
  etc.) in response to triggers (flight dynamics
  data, NCC schedules, AMPS scheduled contacts,
  etc.).
• MOPSS is a dynamic scheduler.

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So What Exactly is AMPS?

• Generic state-of-the-art PS system based on the
  MOPSS framework
• Provides standard MOPSS capabilities (dynamic
  scheduling, generic data storage, robust GUI,
  expert system, operator reconfiguration, etc.)
• Supports enhanced single spacecraft operations
  while incorporating new technologies specifically
  developed for the more complex environment of
  multi-spacecraft missions
• TRL Levels MOPSS components 8/9, JAVA client
  7, AMPS advanced algorithms 4/5

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AMPS Overall Capabilities

• OOD s/c domain model (February 2003)
• Configurable for level of onboard autonomy
• Advanced graphics and easy-use features (ongoing)
• MOPSS PS capabilities
• Communication network scheduling (e.g., replace
  UPS)
• Database independence (2003)

• Automated multi-s/c control
• Abstract planning (ongoing)
• Advanced dynamic scheduling
• Full spectrum PS (science to real-time)
• Multi-s/c mission domain model
• PC (future) or UNIX based server

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The system can be configured to (1 of 2)

• Perform station scheduling. The system will
• Simulate a constellation of spacecraft
• Use an AMPS advanced scheduling algorithm
  (profile resource allocation) to determine which
  spacecraft should use which ground stations at
  which time.
• Use the MOPSS dynamic scheduler to issue commands
  required to support the computed contacts based
  on expert system rules.

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The system can be configured to (2 of 2)

• Perform target scheduling. The system will use
  another AMPS advanced scheduling algorithm (pool
  resource allocation) to allocate targets to the
  various spacecraft based on a pool of target
  goals.

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Appendix
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NASAs S/C Control PS Environment

• System Requirements
• Dynamically plan, schedule, and create the
  commands needed to control complex scientific
  satellites and their science instruments
• Reduce operations costs wherever possible by
  scheduling and automatically controlling the
  ground software that supports the spacecraft
• Plan and schedule the activities of operations
  personnel

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NASAs Multi-spacecraft Environment

• New Level of Complexity
• Domain model includes allocation of ground
  antenna to individual s/c based on dynamic
  priorities
• Cost/manpower for constellation management must
  be on the order of that for single spacecraft
  mission
• Degree of orbital control of spacecraft will vary
  from constellation to constellation
• Degree of s/c and constellation autonomy will
  vary from constellation to constellation
• Additional level of domain model (constellation)
  and order of magnitude of complexity requires
  abstract planning capability

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What is MOPSS?

• Mission Operations Planning and Scheduling System
  
• Generic PS system that can be easily configured
  for missions
• WEB enabled, multi-tier client-server
  architecture using JAVA, C, CORBA ORACLE
• Features dynamic scheduling, generic data
  storage, and easy to use, robust GUI
• Expert system automates mission ops and frees
  flight ops team to concentrate on critical
  activities
• Designed to be easily reconfigured by flight ops
  team as mission evolves
• Ongoing evolution of MOPSS is supported by Code
  583

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MOPSS Space Communication

• Has been interfaced to GN, SN, DSN, and USN
  communication networks and most real-time and FD
  systems
• Dynamic schedule generation automatically
  generates/ regenerates activities and commands in
  response to FDF, science, and communication
  network data

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MOPSS Technical Details

• Access Concurrent multi-user
• Application domain Not limited
• Data Management Oracle database
• Schedule generation Automated using expert
  system rules and manual via user interface
• Ways to ingest data
• MOPSS input language
• Direct API layer to database
• User interface using timeline and editors

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MOPSS Technical Details (Contd)

• Platforms
• Server Any UNIX system
• X Client Xterm or PC running an X-emulator
• Java Client PC or workstation running Windows
  NT/2000/98/95 or UNIX
• Architectures
• Two tier client/server C, X, Motif, Oracle
• Three tier client/server C, Java, CORBA,
  Oracle
• Scope of problem handling Problem domain data
  limited only by hardware
• Constraint checking User interface to specify
  constraint rules. Violations graphically shown.

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MOPSS Technical Details (Contd)

• Rescheduling User interface to specify rules to
  automatically correct constraint violations.
• Customization and integration Attach models and
  algorithms using supplied and created event
  trigger actions.
• Web capabilities (Java client)
• Intranet
• Internet
• Security User privileges combined with
  bidirectional firewall compatibility

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How MOPSS Has Been Used
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Scheduling Communications Between Satellites
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Scheduling Pictures Taken by an Earth-Pointing
Satellite
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Scheduling Spacecraft Maneuvers
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MAP Real-time Scenario Scheduling
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HST Using the New JAVA Client
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HST Using the New JAVA Client (Contd)
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AMPS Developed and Planned Major Features (1 of
2)

• Abstract planning allows science and mission
  planners to specify high level goals for the
  constellation or spacecraft. AMPS will determine
  individual spacecraft directives to carry out the
  goals.
• Object representation of spacecraft domain models
  allows mission engineers to quickly configure
  the system for multiple spacecraft
• Output adaptable to onboard level of autonomy
  allows AMPS to accommodate smart and simple
  spacecraft (i.e., low level commanding or high
  level directives).
• Constellation domain model captures the mega
  data and relationships that allows the system to
  treat the constellation as an entity

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AMPS Developed and Planned Major Features (2 of
2)

• Advanced 3D graphics allows users to view and
  sort large amounts of data visually
• Database independence allows projects to
  capitalize on the strengths of commercial
  databases without dictating the one they will
  use.
• Dynamic update of domain model rules
  incorporates AI learning technology to update (or
  make recommendations to update) individual
  spacecraft domain models based on spacecraft
  performance