Wikipedia:
Cassini–Huygens abbreviations
Below are acronyms, initialisms, and other abbreviations commonly used in conjunction with the Cassini-Huygens mission to Saturn and Titan.
- AACS: Attitude and Articulation Control Subsystem
- ACP: Aerosol Collector and Pyrolyzer (Huygens instrument)
- ACS: Attitude Control Subsystem
- AFC: AACS Flight Computer
- ARWM: Articulated Reaction Wheel Mechanism
- ASI: Agenzia Spaziale Italiana, the Italian space agency
- BIU: bus interface unit
- CAM: Command Approval Meeting
- CAPS: Cassini Plasma Spectrometer (Cassini instrument)
- CDA: Cosmic Dust Analyzer (Cassini instrument)
- CDS: Command and Data Subsystem - Cassini computer that commands and collects data from the instruments
- CICLOPS: Cassini Imaging Central Laboratory for Operations
- CIMS: Cassini Information Management System
- CIRS: Composite InfraRed Spectrometer (Cassini instrument)
- DCSS: Descent Control Subsystem
- DISR: Descent Imager and Spectral Radiometer (Huygens instrument)
- DSCC: Deep Space Communications Center
- DSN: Deep Space Network (large antennas around the earth)
- DTSTART: Dead Time Start
- DWE: Doppler Wind Experiment (Huygens instrument)
- ELS: Electron Spectrometer (part of CAPS instrument)
- ERT: Earth-received time, UTC of an event
- ESA: European Space Agency
- ESOC: European Space Operations Centre
- FSW: flight software
- GCMS: Gas Chromatograph & Mass Spectrometer (Huygens instrument)
- HASI: Huygens Atmosphere Structure Instrument (Huygens instrument)
- HGA: High Gain Antenna
- HMCS: Huygens Monitoring and Control System
- HPOC: Huygens Probe Operations Center
- IBS: Ion Beam Spectrometer (part of CAPS instrument)
- IEB: Instrument Expanded Blocks (instrument command sequences)
- IMS: Ion Mass Spectrometer (part of CAPS instrument)
- INMS: Ion and Neutral Mass Spectrometer (Cassini instrument)
- ISS: Imaging Science Subsystem (Cassini instrument)
- ITL: Integrated Test Laboratory - spacecraft simulator
- IVP: Inertial Vector Propagator
- JPL: Jet Propulsion Laboratory
- LGA: Low Gain Antenna
- MAG: Dual Technique Magnetometer (Cassini instrument)
- MIMI: Magnetospheric Imaging Instrument (Cassini instrument)
- NAC: Narrow Angle Camera
- NASA: National Aeronautics and Space Administration (U.S.)
- OTM: Orbit Trim Maneuver
- PDRS: Probe Data Relay Subsystem
- PHSS: Probe Harness SubSystem
- POSW: Probe On-Board Software
- PPS: Power and Pyrotechnic Subsystem
- PRA: Probe Relay Antenna
- PSA: Probe Support Avionics
- PSIV: Preliminary Sequence Integration and Validation
- PSE: probe support equipment
- RADAR: Radio Detection and Ranging Instrument (Cassini instrument)
- RCS: Reaction Control System
- RFS: Radio Frequency Subsystem
- RPWS: Radio and Plasma Wave Science (Cassini instrument)
- RPX: ring plane crossing
- RSS: Radio Science Subsystem (Cassini instrument)
- RTG: radioisotope thermoelectric generator
- RWA: Reaction Wheel Assembly
- SCET: Spacecraft Event Time
- SCR: sequence change requests
- SKR: Saturn Kilometric Radiation
- SOI: Saturn Orbit Insertion (1 July 2004)
- SOP: Science Operations Plan
- SSP: Surface Science Package (Huygens instrument)
- SSR: Solid State Recorder
- SSUP: Science and Sequence Update Process
- TLA: Thermal Louver Assemblies
- USO: UltraStable Oscillator
- UTC: Coordinated Universal Time (essentially GMT)
- UVIS: Ultraviolet Imaging Spectrometer (Cassini instrument)
- VIMS: Visible and Infrared Mapping Spectrometer (Cassini instrument)
- VRHU: Variable Radioisotope Heater Units
- WAC: Wide Angle Camera
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