Ground Data Systems and Simulators

Ground Data Systems and Simulators 2017-05-20T14:00:21+00:00

ASI Ground Systems

The capabilities of the ASI Ground System group include all phases of spacecraft development from conceptual design through in-space operations. ASI personnel have played key roles in spacecraft programs including small spinning Earth Orbiters, LEO & GEO spacecraft, large interplanetary imagers, planetary landers, and human-rated systems. Mission Critical Ground Systems are the backbone of every successful spacecraft mission. ASI has been successful designing and implementing Mission Critical Ground Systems to control and distribute mission critical data across organizations and geographic boundaries. ASI has in-depth experience with all NASA centers and many industry commercial solutions to design and provide the best solution for your mission.

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Our demonstrated technical capabilities include:

  • Real-Time Data, Voice, and Video Implementations for Simulation, FlatSat/Test-Beds, Spacecraft Integration & Test, and Spacecraft Launch/Operations
  • Test Control Room and Mission Operations Center Design and Implementation
  • Extensive Knowledge of JPL and GSFC Ground System Infrastructure
  • Extensive Knowledge of KSC Launch Operations including PHSF/MOSB, Hangar AE, Astrotech, SLC 17 (Delta II), SLC 41 (ATLAS)
  • Extensive Knowledge of the JPL AMMOS Ground System
  • Extensive Knowledge of the L-3 In-Control and Harris OS/COMET Ground System Tools

Programs that ASI’s Ground System personnel have supported include:

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  • Mars Reconnaissance Orbiter (Concept through Operations)
  • Mars Odyssey (Concept through Operations)
  • Genesis (Concept through Operations)
  • Stardust (Concept through Operations)
  • Mars Climate Orbiter (Concept through Operations)
  • Mars Polar Lander (Concept through Operations)
  • Mars Global Surveyor (Concept through Operations)
  • Magellan (Integration & Test through Operations)
  • Phoenix Lander (Concept through Integration)
  • AFRL TacSat-2 (Concept through End of Mission)
  • AFRL DSX – Demonstration & Space Experiments S/C (Design)
  • AFRL MTS (COOP) – Microsatellite Target System (Design)
  • ORBCOMM Gen 2 – High Availability Communications S/C (Design)
  • ORION – Crew Exploration Vehicle (Design)
  • USAFA FalconSat-5 (Design & Verification)

ASI Simulations

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ASI has extensive experience with simulation development across multiple architectures. ASI personnel have built 3 DOF and 6 DOF simulations in Matlab and Simulink, in standalone C/C++ applications, and in our On-Board Dynamic Simulation System (ODySSy) embedded within satellite flight software. These simulations include models for actuators, sensors, rotational dynamics, translational dynamics, and environments including solar pressure, gravity gradient, atmosphere, and the magnetic field. We have modeled a variety of satellite systems including those in Earth orbit, Mars orbit, Mars entry and landing, Jupiter orbit, interplanetary trajectories, comet encounter, and proximity operations. ASI simulations have been used in all phases of a program for initial design decisions, final verification, I&T test planning and validation, on-orbit calibration activities, and operations planning.

ASI built the Dynamic Space Simulator (DSS) for the Air Force Research Laboratory (AFRL).The DSS provides:

  • Real-Time Hardware-in-the-Loop Simulation of Spacecraft and Launch Vehicles
  • Realistic Atmospheric Flight and On-Orbit Simulation for Sequence Development and Testing
  • Highly Configurable Architecture via Multi Mission Expert System Interface
  • Low-Cost Test-Like-You-Fly Capabilities throughout Life Cycle

photo-dssASI personnel have also performed real-time hardware and human-in-the-loop simulation development at the Lockheed Martin Space Operations Simulator (SOS) Laboratory where they designed and developed industry leading real-time hardware and software simulations for demonstrating the performance of rendezvous and docking systems. Tasks included development of high-fidelity analytical models of spacecraft and ground systems, GN&C system development and analysis, and hardware/software integration for both autonomous and human-in-the-loop rendezvous and docking systems. This included an end-to-end simulation of NASA’s proposed satellite servicer system involving supervised autonomy of Space Shuttle proximity operations and rendezvous and docking from multi-media piloting workstations (video with graphic overlays, touchscreens and voice recognition/synthesis).