LISA Acronyms

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PDF version LISA-LCST-MIS-LI-002_LISAAcronyms.pdf

1

1PA: one-post-adiabatic

A

A/D: Analog-To-Digital Converter
AAM: Active Aperture Mechanism
AC: Alternating Current
ACS: Attitude Control System
AD: Applicable Document
ADC: Analog-To-Digital Converter
ADPLL: all-digital phase-locked loop
ADS: Airbus Deutschland (Friedrichshafen)
ADVOREACH: Advocacy & Outreach Committee
AEI: Albert Einstein Institute
AETD: Applied Engineering and Technology Directorate
AGIS: Atomic Gravitational-wave Interferometer Sensor
AGN: Active Galactic Nuclei
AI: Atom Interferometry
AIT: "Assembly
AIV: "Assembly
AIVT: "Assembly
AK: Analytic Kludge
AKE: attitude absolute knowledge
ALMA: Atacama Large Millimeter/submillimeter Array
AM CVN: AM Canum Venaticorum star (cataclysmic variable)
AMR: Anisotropic Magnetoresistors
AO: Announcement Of Opportunity
AOCS: Attitude And Orbit Control System
AOM: acousto-optic modulator
APD: (NASA's) Astrophysics Division
API: Application Programming Interface
APM: Antenna Pointing Mechanism
ASD: Amplitude Spectral Density
AST: Autonomous Star Tracker
ASTROWG: Astrophysics Working Group
ATA: Allen Telescope Array
ATHENA: Advanced Telescope for High-ENergy Astrophysics
ATLO: "Assembly
ATM: Acoustic Telemetry Modem
ATM: Augmented Telemetry
AU: Astronomical Unit
AU: gold
AWG: Astronomy Working Group

B

BAM: Beam Alignment Mechanism
BAO: Baryonic Acoustic Oscillation
BB: Breadboard
BBDR: Breadboard Design Review
BBN: Big Bang Nucleosynthesis
BCRS: Barycentric Celestial Reference System
BEE: Back End Electronics
BH: Black Hole
BHB: Black Hole Binary
BSM: Physics beyond the Standard Model

C

CAC: Cost at Completion
CAD: Computer Aided Design
CAM: Constellation Acquisition Mode
CAS: Constellation Acquisition Sensor
CATWP: Catalogues Work Package
CBE: Current Best Estimate
CBOD: Clamp Band Opening Device
CCC: Consortium Constituent Council
CCCP: "Cleanliness
CCD: Charge-Coupled Device
CCPM: Consortium Constellation Performance Model
CCU: Carging Control Unit
CDF: Concurrent Design Facility
CDM: Cold Dark Matter
CDR: Critical Design Review
CE: Cosmic Explorer
CFI: Customer-Furnished Items
CFRP: Carbon Fibre Reinforced Plastic
CG: Cold Gas
CGMPS: Cold Gas Micro Propulsion System
CIL: Critical Items List
CIP: Continuous Improvement Program
CL: Confidence Level
CLHT: Can LISA Hear This? (Detectability Calculator)
CM: Caging Mechanism
CM: Charging Mechanism
CMB: Cosmic Microwave Background
CMD: Charge Management Device
CMM: Coordinate Measuring Machine
CMNT: Colloid Micro-Newton Thruster
CMS: Charge Management System
CMU: Charge Management Unit
CNES: Centre National d'Études Spatiales
COBE: Cosmic Background Explorer
COM: Centre Of Mass
COMBO: Classifying Objects By Medium-Band Observations
COMS: Communications System (telemetry)
COSMOS: Cosmic Evolution Survey
COSWG: Cosmology Working Group
COTS: Commercial off the Shelf
CPIS: Consortium Provided Items
CPTA: Chinese Pulsar Timing Array
CQP: Calibrated Quadrant Photodiode Pair
CS: Cosmic String
CSD: Cross Spectral Density
CST: Community Science Team
CTE: Coefficient Of Thermal Expansion
CTP: Core Technology Program
CVM: Caging and Venting Mechanism
CW: Continuous Wave
CWD: Compact White Dwarf binaries

D

D/A: Digital -To-Analogue Converter
D/SRE: Director of Science & Robotic Exploration
DA: Data Analysis
DAAP: Deep Analysis Alert Pipeline
DAC: Digital-to-Analog Converter
DAFTWP: Data Analysis Framework and Tools Work Packages
DAUGHTER-S: Daughter spacecraft
DC: Direct Current
DCBH: Direct Collapse Black Hole
DCC: Data Computing Centre
DCCS: Data Computing Centers
DCIU: Digital Control Interface Unit
DCP: De-Commissioning Phase
DDE: Diagnostics Drive Electronics
DDF: Design Definition File
DDPC: Distributed Data Processing Centre
DDS: Data and Diagnostic Subsystem
DEEP2: Deep Extragalactic Evolutionary Probe 2
DEI: "Diversity
DF: drag-free
DFACS: Drag-Free Attitude Control System
DHLC: Data Handling And Laser Control
DJF: Design Justification File
DLL: Delay-Locked Loop
DLR: Deutsches Zentrum fuer Luft- und Raumfahrt
DM: Dark Matter
DMS: Document Management System
DMU: Data Management Unit
DOF: Degree Of Freedom
DP: Diagnostic Package
DPC: Data Processing Centre
DPEWG: Detection and Parameter Estimation Work Packages
DPL: Daily Pipeline
DPLL: Digital Phase Locked Loop
DPS: Differential Power Sensing
DR: data release
DRPT: Data Release Product Team
DRS: Disturbance Reduction System
DS: Diagnostics Subsystem
DSC: Daughter Space Craft
DSCU: Diagnostics Signal Conditioning Unit
DSN: Deep Space Network
DSP: Data Signal Processing
DTM: Deterministic Transfer Manoeuvre
DTU: Danmarks Tekniske Universitet
DWD: Double White Dwarf (binary)
DWS: Differential Wavefront Sensing

E

E2E: End-to-End
EBB: Engineering (or Elegant) Bread Board
EBM: External Balance Mass
EC: Executive Committee
ECDL: Extended Cavity Diode Laser
ECSS: European Cooperation for Space Standardization
EDU: Engineering Development Unit
EEE: Electronic/Electrical Engineering Equipment
EELV: Evolved Expendable Launch Vehicle
EFC2: ESA/ESTEC Frame Contract 2
EGAPS: European Galactic Plane Surveys
EGSE: Electrical Ground Support Equipment
EH: Electrode Housing
EID: Experiment Interface Document
EIRP: Equivalent Isotropic Radiative Power
ELISA: Evolved Laser Interferometer Space Antenna
ELITE: European LISA Technology Experiment
ELT: Extremely Large Telescope
ELV: Expendable Launch Vehicle
EM: Engineering Model
EMA: Electro-Magnetic
EMC: Electro-Magentic Compatibility
EMI: Electro-Magentic Interference
EMRB: Extreme Mass-Ratio Bursts
EMRI: Extreme Mass-Ratio Inspiral
EOB: effective one-body
EOL: End-Of-Life
EOM: Electro-Optical Modulator
EOM: Equations of Motion

e

ePMS: Extended Phase Measuring System

E

EPS: Extended Press-Schechter Formalism
EPTA: European Pulsar Timing Array
EQM: Engineering and Qualification Model
ERST: Early Release Science Time
ESA: European Space Agency
ESAC: European Space Astronomy Centre
ESDC: ESAC Science Data Centre
ESOC: European Space Operations Centre
ESP: Extended Science Phase
ESTEC: European Space Research and Technology Centre
ESTRACK: European Space TRACKing
ET: Einstein Telescope
ETU: Engineering Thermal Unit
EW: Electroweak

F

FA: Fiber Amplifier
FAQ: Frequently Asked Question(s)
FBD: Functional Block Diagram
FCC: Future Circular Collider
FDIR: "Failure Detection
FDS: Frequency Distribution System
FDM: Frequency Distribution Module
FE: Finite Element
FEE: Front-End Electronics
FEE SAU: Front-End Electronics Sensing And Actuation Unit
FEEP: Field-Emission Electric Propulsion
FEM: Finite Element Model
FF OGSE: Far-Field Optical Ground Support Equipment
FF-OGSE: Far-Field Optical Ground Support Equipment
FFOGSE: Far Field Optical Ground Support Equipment
FIOS: Fibre Injector Optical Subassembly
FITS: Flexible Image Transport System
FM: Flight Model
FMT: Formulation Management Team
FOH: Fibre Optical Harness
FOM: Figures of Merit
FOPT: First-Order Phase Transition
FOV: Field of View
FPAG: Fundamental Physics Advisory Group
FPGA: Field-Programmable Gate Array
FPWG: Fundamental Physics Working Group
FR: Laser Frequency Reference
FRS: Frequency Reference System
FS: Flight Spare
FSM: Finite State Machine
FSU: Fibre Switching Unit
FSUA: Fiber Switch Unit Actuator
FTE: Full-Time Equivalent
FWHM: Full Width Half Maximum

G

GB: Galactic Binary
GBS: Galactic Binaries
GCR: Galactic Cosmic Ray
GCRS: Geocentric Celestial Reference System
GOAT: Gravitational Observatory Advisory Team
GPRM: Grabbing Position Release Mechanism
GPS: Global Positioning System
GR: General Theory Of Relativity
GR740: The ESA Next Generation Microprocessor (NGMP)
GRACE: Gravity Recovery and Climate Experiment
GRACE-FO: GRACE Follow-On
GRB: Gamma-Ray Burst
GRS: Gravitational Reference System
GRSH: Gravitational Reference System Head
GS: Ground Station
GSE: Ground Support Equipment
GSF: Gravitational Self-Force
GSFC: Goddard Space Flight Center
GTO: Geostationary Transfer Orbit
GUT: Grand Unified Theory
GW: Gravitational Wave
GW-WG: Gravitational-wave Observatory Working Group

H

H/W: Hardware
HDF: Hierarchical Data Format
HDRM: Hold Down And Release Mechanism
HEMP: High-Efficiency Micropropulsion
HEO: High Earth Orbit
HETO: Heliocentric Earth Trailing Orbit
HG: Mercury
HGA: High-Gain Antenna
HK: Housekeeping
HL-LHC: High Luminosity Large Hadron Collider
HR: High Resolution
HST: Hubble Space Telescope

I

I& T: Integration and Test(ing)
I/F: interface
IA: Instrument Amplifier
IAAS: Infrastructure As A Service
IAU: International Astronomical Union
IBM: Internal Balance Mass
ICC: Instrument Control Computer
ICD: Interface Control Document
ICRF: International Celestial Reference Frame
ICRS: International Celestial Reference System
ICSO: Innermost Stable Circular Orbit
IDA: Initial Displacement Angle
IDL: Interferometer Data Log
IDS: Interferometric Detection System
IFO: InterFerOmeter
IFP: In-Field Pointing
IGM: Inter-Galactic Medium
ILS: Instrument Line of Sight
IMA: Integrated Modular Avionics
IMBH: Intermediate-Mass Black Hole
IMBHB: Intermediate Mass Black Hole Binary
IMF: Initial Mass Function
IMR: Inspiral-Merger-Ringdown
IMRI: Intermediate Mass-Ratio Inspiral
IMS: Interferometric Measurement System
IN2P3: National Institute of Nuclear and Particle Physics
INGAAS: Indium-Gallium Arsenide
INPTA: Indian pulsar Timing Array
INREP: Initial Noise Reduction Pipeline
INSPRL: Interferometer in Space for Detecting Gravity-wave Radiation using Lasers
IOCR: In-Orbit Commissioning Review
IOT: Instruments Operations Team
IPC: Industrial Policy Committee
IPT: Integrated Product Team
IPTF: intermediate Palomar Transient Factory
IPU: Interferometric Processing Unit
IRD: Interface Requirement Document
ISC: Inter-spacecraft Laser Communication
ISH: Inertial Sensor Head
ISI: Inter-Satellite Interferometer
ISM: Instrument Sensitivity Model
ISO: International Organization for Standardization
ISPE: Instrument Scientists & Payload Experts
ISUK: Inertial Sensor UV Kit
IT: Information Technology
ITAR: International Traffic in Arms Regulations
ITAT: Integrated Technical Advisory Team(s)
ITT: Invitation To Tender

J

JILA: Joint Institute For Laboratory Astrophysics
JPIP: Joint Project Implementation Plan
JPL: Jet Propulsion Laboratory
JWST: James Webb Space Telescope

K

KAGRA: Kamioka Gravitational-wave Detector
KSC: Kennedy Space Center

L

L0: Level 0 data
L0.5: Level 0.5 data
L1: Level 1 data
L2: Level 2 data
L3: Level 3 data
L3ST: L3 Study Team
LA: Laser Assembly
LAGOS: Laser Antenna For Gravitational-Radiation Observation In Space
LCA: Lisa Core Assembly
LCC: Life Cycle Cost
LCL: LISA Consortium Lead
LCM: Spacecraft Composite Stack
LD: Laser Diode
LDB: Lisa Mission Database
LDC: Lisa Data Challenge
LDCWG: LISA Data Challenge Working Group
LDP: LISA Data Processing
LDPG: Lisa Data Progressing Group
LECS: LISA Early Career Scientist Group
LED: Light-Emitting Diode
LEM: Laser Electrical Module
LEOP: Launch and Early Operations Phase
LFS: Laser Frequency Stabilisation
LGA: Low-Gain Antenna
LH: Laser Head
LHC: Large Hadron Collider
LIC: Lisa Instrument Consortium
LID / LIC: Laser Induced Damage (LID) and Laser Induced Contamination (LIC)
LIG: LISA Instrument Group
LIGO: Laser Interferemeter Gravitational Wave Observartory
LIMAS: LISA Instrument and Metrology Avionics System
LISA: Laser Interferometer Space Antenna
LISA-MRD-0: Mission Requirement Document
LISN: Line Impedance Stabilization Network
LISPEG: LISA Instrument Scientists and Payload Experts Group
LIST: Lisa International Science Team
LLAP: Low Latency Alert Pipeline
LLD: Launch Lock Device
LLI: Long Lead Item
LMC: Large Magellanic Cloud
LMF: LISA Mission Formulation
LMT: Large Momentum Transfer
LO: Local Oscillator
LOA: Letter of Agreement
LOCS: LISA Opto-mechanical Core System
LOLIPP: Level 0 To Levl 1 Pipeline Procedure
LOM: Laser Optical Module
LOS: Line Of Sight
LPF: Lisa Pathfinder
LPS: Laser Pre-stabilization System
LRI: Laser-Ranging Interferometer
LS: Laser Subsystem
LSG: Lisa Science Group
LSGCORE: LISA Science Group Core Team
LSO: Last Stable Orbit
LSS: Laser Systems
LSST: Large Synoptic Survey Telescope
LST: LISA Science Team
LTP: Lisa Pathfinder Technology Package
LTPDA: LISA Technology Package Data Analysis
LUT: Look-Up Table
LVA: Launch Vehicle Adaptor
LVDS: Low Voltage Differential Signaling
LVK: "LIGO

M

MA: Mission Assurance
MAC: Mass Acceleration Curve
MAG: Mission Analysis Guidelines
MAR: Mission Adoption Review
MAXI: Monitor Of All-Sky X-Ray Image
MBE: Model Best Estimate
MBH: Massive Black Hole
MBHB: Massive Black Hole Binary
MBW: Measurement Bandwidth
MCI: "Mass
MCMC: Markov-Chain Monte Carlo
MCR: Mission Consolidation Review
MCU: Mechanism Control Unit
MDR: Main Data Repository
MECC: Merger Event Coordination Committee
MEL: Master Equipment List
MEOP: Maximum Expected Operationg Pressure
MFR: Mission Formulation Review
MFS: Main Frequency Stabilisation
MGSE: Mechanical Ground Support Equipment
MICD: Mechanical Interface Control Document
MIDA: Mean (Earth) Initial Displacement Angle
MIFO: Metallic Interferometer
MIRD: Mission Implementation Requirement Document
MLA: Multi-Lateral Agreement
MLB: Motorised Light Band
MLDC: Mock Lisa Data Challenge
MLI: Multi Layer Insulation
MM: Mission Manager
MMAWP: Multi-Messenger Astrophysics Work Package
MMH: Monomethyl Hydrazine
MO: Maser Oscillator
MO: molybdenum
MOAD: Mission Operations Assumptions Document
MOC: Mission Operations Centre
MOFPA: Master Oscillator Fibre Power Amplifier
MON-3: Mixed Oxides Of Nitrogen With Si3 Nitric Oxide
MOPA: Master Oscillator Power Amplifier
MOSA: Moving Optical Sub-Assembly
MOT: Magneto-Optical Trap
MOTHER-S/C: Mother spacecraft
MOU: Memorandum of Understanding
MPR: Mission Performance Requirement
MPS CG: Cold Gas Micro Propulsion System
MR: Measurement Requirement
MR: Mission Requirement
MRD: Mission Requirements Document
MRF: Mechanical Reference Frame
MSC: Mother Spacecraft
MSEM: Mission Systems Engineering Managers
MSS: Mosa Support Structure
MTR: Mid-Term Review
MTS: Metasurface (antennas)

N

NA: Numerical Aperture
NANOGRAV: North American Nanohertz Observatory for Gravitational Waves
NASA: National Aeronautic And Space Administration
NCO: numerically controlled oscillator
NDA: Non-Disclosure Agreement
NECP: Near Earth Commissioning Phase
NEP: Noise Equivalent Power
NGGM: Next-Generation Gravity Mission
NGMP: Next Generation Micro Processor
NGO: New Gravitational Wave Observatory
NGRM: Next Generation Radiation Monitor
NICM: NASA Instrument Cost Model
NLS: NASA Launch Services
NLSO: NASA LISA Study Office
NLST: Nasa Lisa Study Team
NPMB: National Project Manager Board
NPRO: Non-Planar Ring Oscillator
NR: Numerical Relativity
NRC: National Research Council
NRE: Non-Recurring Engineering
NRT: Near-Real-Time Pipeline
NS: Neutron Star
NSGS: NASA Science Ground Segment
NSP: Nominal Science Phase
NSPIRES: NASA Solicitation and Proposal Integrated Review and Evaluation System
NTC: Negative Temperature Coefficient
NWNH: New Worlds New Horizons

O

OAM: Optical Assembly Mechanics
OAS: Optical Assembly Subsytem
OATM: Optical Assembly Tracking Mechanism
OB: Optical Bench
OBA: Optical Bench Assembly
OBC: On-Board Computer
OBCP: On-Board Control Procedure
OBDH: On Board Data Handling
OBSW: On-Board Software
OGS: Operational Ground Segment
OGSE: Optical Ground Support Equipment
OM: Optical Model
OMS: Optical Metrology System
OP: Optical Path
OPL: Optical Path Length
OR: Operational Requirement
ORO: Optical Read-Out
OT: optical truss
OTS: Optical Test Systems

P

P/L: Payload
P/M: Propulsion Module
PA: Power Amplifier
PA: Product Assurance
PAA: Point-Ahead Angle
PAAM: Point-Ahead Angle Mechanism
PAC: Particulate Contamination
PAN-STARRS: The Panoramic Survey Telescope & Rapid Response System
PAR: phase accumulation register
PARD: Product Assurance Requirement Document
PARX: public archive
PBH: Primordial Black Hole
PBS: Polarising Beam Splitter (might be an LPF acronym)
PCC: Payload Control Computer
PCDU: Power Control And Distribution Unit
PCOS: Physics of the Cosmos
PCP: Payload Commanding and Processing
PCP-GSE: Payload Commanding and Processing Ground Support Equipment
PCS: Payload Control Subsystem
PCU: Phasemeter Control Unit
PCU: Power Conditioning Unit
PD: Photo Diode
PDD: Payload Description Document
PDF: Probability Density Function
PDH: Propability Data Handling
PDR: Preliminary Design Review
PDS: Photo Detector System
PEM: Payload Engineering Model
PFM: Proto-Flight Model
PFO: Particle fallout
PI: Principal Investigator
PIAR: Performance and Impact Assessment Review
PIR: phase increment register
PL: Payload
PL: Power-Law (model)
PLL: Phase-Locked Loop
PLS: Power Law Sensitivity
PM: Progress Meeting
PM: "Project Management
PMDSP: Phase Meter Digital Signal Processor
PMF: Polarization-Maintaining Fibre
PMFDE: Pahse Meter Frequency Distribution Electronics
PMFEE: Phase Meter Front-End Electronics
PMON: Power monitor(s)
PMS: Phase Measurement Subsystem
PN: Post-Newtonian
POR: Payload Operations Request
PPE: Parameterized Post-Einsteinian
PPR: Proper Pseudo-Range
PPTA: Parkes Pulsar Timing Array
PPU: Power Processing Unit
PRDS: Phase Reference Distribution System
PRDS-OGSE: Phase Reference Distribution System - Optical Ground Support Equipment
PRN: Pseudo-Random (Speudo Noise)
PRR: Preliminary Requirements Review
PRT: Platinum Resistance Thermometers
PS: Project Scientist
PSCU: Power Signal Conditioning Unit
PSD: Power Spectral Density
PSF: Point-Pread Function
PSM: Power Supply Module
PSR: Pulsar
PT: Pilot Tone
PT: platinum
PTA: Pulsar Timing Array
PTF: Palomar Transient Factory
PY: Person Years

Q

QA: Quality Assurance
QE: Quantum Efficiency
QM: Qualification Model
QNM: Quasi-Normal Mode
QPD: Quadrant Photodetector
QPR: Quadrant Photo-Receiver
QSL: Quasi-Static Load
QSO: Quasi-Stellar Object

R

RAAN: Right Ascension of the Ascending Node
RACS: Reaction and Attitude Control subsystem (combined RCS and MPS)
RAM: Random-Access Memory
RATS: Rapid Time Survey
RD: Reference Document
RDBMS: Relational Database Management System
REF: Reference
RF: Radio Frequency
RFA: Request for Frequency Assignment
RFI: Request for Information
RFP: Request for Proposal
RIN: Relative Intensity Noise
RIT: Radio-Frequency Ion Thruster
RIU: Remote Interface Unit
RM: Radiation Monitor
RMS: Root Mean Square
ROB: Read Out Box
RPE: "Relative Pointing/Performance Error (= jitter
RS: Requirement Specification
RSS: Root Sum Square
RTB: Real-time Test Bed
RTOS: Real Time Operating System
RU: Reference Unit
RX: Received Laser (from far Spacecraft)
RX: Reception
RXTE: Rossi X-Ray Timing Explorer

S

S/C: Spacecraft

"

"S/C: SC"

S

S/C-P/M: Spacecraft/Propulsion-Module
S/S: subsystem
S/W: Software
SAU: Sensing and Actuation Unit
SAVOIR: Space AVionics Open Interface aRchitecture
SBCC: Single Board Computer Core
SBDL: Standard Balanced Digital Link
SBH: stellar-mass Black Hole
SBHB: stellar-mass Black Hole binary
SBS: Stimulated Brillouin Scattering
SC: Spacecraft
SCCP: System Commissioning and Calibration Phase
SCET: Spacecraft Elapsed Time
SCI: Science Directorate of ESA
SCI-F: Future Missions Department of ESA Directorate of Science
SCI-M: "Project Control and Management Support Service
SCI-P: Projects Department of ESA Directorate of Science
SCI-S: Science and Operations Department of ESA Directorate of Science
SCI-SD: Development Division of SCI-S
SCIRD: Science Requirements Document
SCO: Stellar-mass Compact Object
SCOC: Science Operations Coordinator
SCOE: Special Check Out Equipment
SCU: Signal Conditioning Unit
SDM: SOC Development Manager
SDP: system data pool
SDS: Science Diagnostics Subsystem
SDSS: Sloan Digital Sky Survey
SE: System Engineer(ing)
SEO: System Engineering Office
SEP: Solar Energetic Paricle
SEPD: Single-Element Photo Diode
SGO: Space-based Gravitational-wave Observatory
SGS: Science Ground Segment
SGWB: Stochastic Gravitational-wave Background
SI: Science investigation
SIM: Space Interferometry Mission
SIP: Science Implementation Plan
SIPS: Science Implementation Plans
SIR: System Integration Review
SIRD: Science Implementation Requirements Document
SISO: Single Input/Single Output
SIWP: Science Interpretation Work Package
SKA: Square Kilometre Array
SL: Scatter Light
SLI: Single Layer Insulation
SMBH: Super-Massive Black Hole
SMC: Small Magellanic Cloud
SMF: Single Mode Fiber
SMP: Science Management Plan
SNR: Signal-To-Noise Ratio
SO: Science objective
SOAD: Science Operations Assumptions Document
SOBH: Stellar origin black hole
SOBHB: Stellar Origin Black Hole Binary
SOC: Science Operation Centre
SOCD: Science Operations Concept Document
SODPC: Science Operations Data Processing Center
SOSL: Science Operations Study Lead
SOVT: Science Operations Verifications Tests
SOW: Statement Of Work
SPA: Stationary Phase Approximation
SPC: Science Programme Committee
SQUID: Superconducting Quantum Interference Device
SRD: System Requirement Document
SRP: solar radiation pressure
SRR: System Requirements Review
SRS: spacecraft reference system
SS: Sub-system
SSAC: Space Science Advisory Committee
SSB: Solar System Barycenter
SSC: Senior Science Committee
SSEWG: Solar System and Exploration Working Group
SSRD: Space Segment Requirements Document
SST: Science Study Team
STE: Service Time Equivalent
STM: Structural Model
STOC: Science Technology Operations Centre
STOM: Structural Optical Model
STOP: Structural Thermo-Optical Performance
STP: Science Topical Panel
STR: Coarse Star Tracker
SWT: Ngo Scence Working Team

T

TA: Telescope Assembly
TAA: Technical Assistance Agreement
TAS: Thales-Alenia Aerospace Systems
TBC: To Be Confirmed
TBD: To Be Defined
TBM: Trimming Balance Mass
TBT: Thermal Balance Test
TC: Telecommand
TC/TM: Telecommand/Telemetry
TCB: Barycentric Coordinate Time
TCG: Geocentric Coordinate Time
TCLS: Triple Core LockStep
TCM: Trajectory Correction Manoeuvre
TCS: Thermal Control Subsystem
TCVR: Transceiver
TDA: Technology Development Activities
TDI: Time-Delay Interferometry
TDI X: LISA's 2-arm configuration
TDIR: Time Delay Interferometry Ranging
TECC: Transient Event Coordination Committee
THE: On-Board Clock Time
TI: titanium
TIA: Transimpedance Amplifiers
TID: Total Ionising Dose
TL: or TEL Telescope
TM: "Test Mass
TM-I/F: test mass interface
TM-OGSE: Test-Mass Optical Ground Equipment
TM/TC: Tele Measure/Tele Command
TMI: test mass interferometer
TMTC: Telemetry and Telecommand
TN: Technical Note
TNID: Total Non-Ionizing Dose
TNO: Nederlandse Organisatie voor Toegepast Natuurwetenschappelijk Onderzoek
TOBA: Telescope & Optical Bench Assembly
TOGA: "Telescope
TP: Transfer Phase
TPS: Spacecraft Proper Time
TRA: Technology Readiness Assessment
TRB: Test Review Board
TRIP: Technical Readiness and Implementation Plan
TRL: Technology Readiness Level
TRP: Temperature Reference Points
TRR: Test Readiness Review
TS: Telescope
TSP: Temporal and Spatial Partitioning
TT& C: "Telemetry
TTL: Tilt-to-Length
TVAC: Thermal Vacuum
TVT: Thermal Vacuum Test
TWTA: Traveling-Wave Tube Amplifier
TX: Transmission
TX: Transmitted Laser (main laser in OB)

U

UART: Universal Asynchronous Receiver Transmitter
UCB: Ultra-Compact Binaries
ULU: UV Light Unit
ULX: Ultra-Luminous X-ray source
URL: Uniform Resrouce Locator
USO: Ultra-Stable Oscillator
UTC: Coordinated Universal Time
UV: Ultra-Violet

V

V& V: Verification and Validation
VAST: Variables And Slow Transients
VB: Verification Binary
VC: Vacuum Chamber
VE: Vacuum Enclosure
VGB: Verification Galactic Binary
VIRGO: Virgo
VLBI: Very-long-baseline interferometry
VMS: Very Massive Star
VP: Verification Program

W

W: tungsten
WAVWG: Waveform Working Group
WBS: Work Breakdown Structure
WD: White Dwarf
WFE: Wave Front Error
WG: Working Group
WMAP: Wilkison Microwave Anisotropy Probe
WP: Work Package
WPS: Work Packages
WR: Wide Range
WSB: Weak Stability Boundary

X

XDA: X-band Downlink Assembly
XGNSB: Extragalactic Neutron Star Binary
XML: Extensible Markup Language
XMRI: extremely mass-ratio inspiral

Y

YB: ytterbium

Z

ZIFO: Zerudur Interferomenter
ZTF: Zwicky Transient Facility