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Code 583 Technologies and Products

Integrated Test and Operations System (ITOS)

Product Development Lead (PDL)
Description and Objectives
  • The Integrated Test and Operations System (ITOS) is a suite of software applications that allow the user to control a satellite. Its main functionality is to process, display, store and monitor telemetry, and to generate telecommands. ITOS is the core element of a spacecraft or space instrument Ground Data System for: flight operations, integration and testing, and development. ITOS is highly user-configurable, and provides a scalable, cost-effective platform.

    ITOS can easily be utilized in any or all of the following mission phases:

    • Board and Box development
    • Instrument and component development
    • Spacecraft development
    • Spacecraft, instrument, and component simulation
    • Flight software development
    • Integration and testing
    • Mission Operations
ITOS Description - See Technical Approach display
ITOS Configuration for Satellite Application
Technical Approach
  • ITOS software need not be customized from mission to mission. Implements highly-evolved language for describing telemetry and command layout and processing.
  • All customers share a single release; no mission-specific, dead-end versions are created
  • Comprehensive product includes advanced telemetry and command processing; broad I/O capabilities including TCP/IP, SLE, CFDP, and GMSEC*; web-based displays.
  • Automation provided by STOL* interpreter, configuration monitor, and schedule executor (for time-based automation) to support lights-out operations.
  • No license costs for end-users.
  • * SLE: Space Link Extension; CFDP:CCSDS File Delivery Protocol; 
       GMSEC: Goddard Mission Services Evolution Center; STOL: System Test & Operations Language
Main Innovation(s)
  • Scalable from board-level testing to on-orbit operations.
  • Designed for control of multiple spacecraft from a single console.
  • Includes capabilities for closed-loop simulation of spacecraft, instruments, or other components.
  • Traditional spacecraft front-end processing performed in software.
Infusion Potential
  • Can be applied to any application involving real-time monitoring, control, and data distribution.
  • Very low cost and highly user-configurable.
  • Advanced, modular design for quick, low-cost customizations when needed.