
% A  
\acro{AC}[AC]{Alternating Current}
\acro{ADC}[ADC]{Analog to Digital Converter}
\acro{AGN}[AGN]{Active Galactic Nuclei}

\acro{AIV}[AIV]{assembly, integration, and verification}
\acro{AIVT}[AIVT]{assembly, integration, verification, and testing}
\acro{AIT}[AIT]{assembly, integration, and testing}
\acro{AK}[AK]{``Analytic Kludge''}
\acro{AKE}[AKE]{attitude absolute knowledge}
\acro{AMCVn}[AM~CVn]{class of cataclysmic variable stars}
\acro{AMR}[AMR]{Anisotropic Magnetoresistors}
\acro{AO}[AO]{Announcement of Opportunity}

\acro{AOCS}[AOCS]{attitude and orbit control system}
\acro{AOM}[AOM]{acousto-optic modulator}
\acro{ASD}[ASD]{amplitude spectral density}
\acro{AST}[AST]{autonomous star tracker}
\acro{ATA}[ATA]{\href{http://www.seti-inst.edu/ata/}{Allen Telescope Array}}





% B
\acro{BAO}[BAO]{baryonic acoustic oscillation}
\acro{BB}[BB]{Breadboard}
\acro{BBN}[BBN]{Big Bang nucleosynthesis}
\acro{BH}[BH]{black hole}
\acro{BHB}[BHB]{black hole binary}





% C
\acro{CAS}[CAS]{constellation acquisition sensor}
\acro{CBE}[CBE]{current best estimate}
\acro{CBOD}[CBOD]{clamp band opening device}
\acro{CCD}[CCD]{charge-coupled device}
\acro{CCU}[CCU]{caging control unit}
\acro{CDF}[CDF]{Concurrent Design Facility}
\acro{CDM}[CDM]{cold dark matter}
\acro{CFRP}[CFRP]{carbon fibre reinforced plastic}
\acro{CM}[CM]{caging mechanism}
\acro{CMM}[CMM]{coordinate measuring machine}
\acro{CMS}[CMS]{charge management system}
\acro{CMNT}[CMNT]{colloid micro-newton thruster}
\acro{CMB}[CMB]{cosmic microwave background}
\acro{CNES}[CNES]{Centre National d’Etudes Spatiales}
\acro{COBE}[COBE]{\href{http://lambda.gsfc.nasa.gov/product/cobe/}{COsmic Background Explorer}}
\acro{CoM}[CoM]{centre of mass}
\acro{COMBO}[COMBO]{\href{http://www.mpia.de/COMBO/}{Classifying Objects by Medium-Band Observations}}
\acro{COSMOS}[COSMOS]{\href{http://irsa.ipac.caltech.edu/Missions/cosmos.html}{Cosmic Evolution Survey}}
\acro{CQP}[CQP]{calibrated quadrant photodiode pair}
\acro{COTS}[COTS]{commercial off the shelf}
\acro{CTE}[CTE]{coefficient of thermal expansion}
\acro{CTP}[CTP]{core technology program}
\acro{CVM}[CVM]{Caging and venting mechanism}



% D
\acro{DA}[DA] {Data Analysis}
\acro{D/A}[D/A]{digital-to-analogue converter}
\acro{DCC}[DCC]{Data Computing Center}
\acro{DCCs}[DCCs]{Data Computing Centers}
\acro{DDE}[DDE]{diagnostics drive electronics}
\acro{DDPC}[DDPC]{Distributed Data Processing Centre}
\acro{DEEP2}[DEEP2]{\href{http://deep.berkeley.edu/}{Deep Extragalactic Evolutionary Probe 2}}
\acro{DF}[DF]{drag-free}
\acro{DFACS}[DFACS]{Drag-Free Attitude Control System}
\acro{DOF}[DOF]{degree of freedom}
\acro{DMU}[DMU]{Data Management Unit}
\acro{DP}[DP]{diagnostic package}
\acro{DPC}[DPC]{Data Processing Centre}
\acro{DPLL}[DPLL]{digital phase locked loop}
\acro{DRS}[DRS]{disturbance reduction system}
\acro{DSC}[Daughter-S/C]{``Daughter'' spacecraft}
\acro{DS}[DS]{Diagnostics Subsystem}
\acro{DSN}[DSN]{Deep Space Network}
\acro{DTM}[DTM]{deterministic transfer manoeuvre}
\acro{DWS}[DWS]{differential wavefront sensing}




% E
\acro{E2E}[E2E]{End-to-End}
\acro{EBB}[EBB]{Elegant Breadboard}
\acro{EELV}[EELV]{evolved expendable launch vehicle}
\acro{EGAPS}[EGAPS]{European Galactic Plane Surveys}
\acro{EH}[EH]{Electrode housing}
\acro{ELV}[ELV]{expendable launch vehicle}
\acro{EM}[EM]{electro-magnetic}
\acro{EMRI}[EMRI]{extreme mass-ratio inspiral}
\acro{EOL}[EOL]{end-of-life}
\acro{EoM}[EoM]{Equations of Motion}
\acro{EOM}[EOM]{electro-optical modulator}
\acro{EPS}[EPS]{extended Press-Schechter formalism}
\acro{EQM}[EQM]{Engineering and Qualification Model}
\acro{ESA}[ESA]{European Space Agency}
\acro{ESAC}[ESAC]{European Space Astronomy Centre in Madrid, Spain}
\acro{ESOC}[ESOC]{European Space Operations Centre}



% F
\acro{FAQ}[FAQ]{Frequently Asked Questions}
\acro{FBD}[FBD]{Functional Block Diagram}
\acro{FDIR}[FDIR]{Failure Detection, Isolation, and Recovery}
\acro{FE}[FE]{finite-element (methods)}
\acro{FEE}[FEE]{front-end electronics}
\acro{FEEP}[FEEP]{field-emission electric propulsion}
\acro{FEESAU}[FEE SAU]{front-end electronics sensing and actuation unit}
\acro{FF-OGSE}[FF-OGSE]{Far-Field Optical Ground Support Equipment}  
\acro{FITS}[FITS]{Flexible Image Transport System}
\acro{FIOS}[FIOS]{Fibre Injector Optical Subassembly}
\acro{FM}[FM]{Flight Model}
\acro{FOH}[FOH]{Fibre Optic Harness}
\acro{FSU}[FSU]{fibre switching unit}
\acro{FSUA}[FSUA]{fibre switching unit assembly}
\acro{FPAG}[FPAG]{Fundamental Physics Advisory Group}
\acro{FPGA}[FPGA]{field-programmable gate array}
\acro{FR}[FR]{laser frequency  reference}
\acro{FS}[FS]{frequency  separated}
\acro{FDS}[FDS]{Frequency Distribution System}



% G
\acro{GBs}[GBs]{Galactic Binaries}
\acro{GCR}[GCR]{Galactic Cosmic Ray}
\acro{GRACE-FO}[GRACE-FO]{\href{https://gracefo.jpl.nasa.gov/~}{Gravity Recovery and Climate Explorer Follow On}}
\acro{GPRM}[GPRM]{Grabbing Positioning Release Mechanism}
\acro{GR}[GR]{General Theory of Relativity}
\acro{GRS}[GRS]{Gravitational Reference Sensor}
\acro{GS}[GS]{Ground Station}
\acro{GS}[GS]{Ground Segment}
\acro{GSE}[GSE]{Ground Support Equipment}
\acro{GSFC}[GSFC]{Goddard Space Flight Center}
\acro{GTO}[GTO]{Geostationary Transfer Orbit}
\acro{GR740}[GR740]{\href{http://microelectronics.esa.int/gr740/index.html}{The ESA Next Generation Microprocessor (NGMP)}}
\acro{GW}[GW]{Gravitational Wave}


% H
\acro{HDF}[HDF]{Hierarchical Data Format}
\acro{HDRM}[HDRM]{Hold Down and Release Mechanism}
\acro{HETO}[HETO]{Heliocentric Earth Trailing Orbit}
\acro{Hg}[Hg]{mercury}
\acro{HGA}[HGA]{high-gain antenna}
\acro{HR}[HR]{High Resolution}
\acro{HST}[HST]{\href{http://hubble.nasa.gov/~}{Hubble Space Telescope}}



% I
\acro{IA}[IA]{Instrument Amplifier}
\acro{IAAS}[IAAS]{Infrastructure As A Service}
\acro{IBM}[IBM]{Internal Balance Mass}
\acro{IDL}[IDL]{Interferometer Data Log}
\acro{I/F}[I/F]{interface}
\acro{IFO}[IFO]{Interferometer}
\acro{IFP}[IFP]{In-Field Pointing}
\acro{IGM}[IGM]{inter-galactic medium}
\acro{IMA}[IMA]{Integrated Modular Avionics}
\acro{IMBH}[IMBH]{Intermediate Mass Black Hole}
\acro{IMF}[IMF]{initial mass function}
\acro{IMRI}[IMRI]{intermediate mass-ratio inspiral}
\acro{IMS}[IMS]{interferometric measurement system}
\acro{IN2P3}[IN2P3]{National Institute of Nuclear and Particle Physics}
\acro{IOCR}[IOCR]{in-orbit commissioning review}
\acro{IOT}[IOT]{Instrument Operations Team}
\acro{ISH}[ISH]{Inertial Sensor Head}
\acro{ISM}[ISM]{instrument sensitivity model}
\acro{ISUK}[ISUK]{Inertial Sensor UV Kit}
\acro{IT}[IT]{Information Technology}



% J
\acro{JILA}[JILA]{\href{http://jila.colorado.edu/}{Joint Institute for Laboratory Astrophysics}}
\acro{JPL}[JPL]{\href{http://www.jpl.nasa.gov/}{Jet Propulsion Laboratory}}
\acro{JWST}[JWST]{\href{http://www.jwst.nasa.gov/}{James Webb Space Telescope}}


% K
\acro{KSC}[KSC]{\href{http://www.nasa.gov/centers/kennedy/home/index.html}{Kennedy Space Center}}



% L
\acro{LA}[LA]{Laser Assembly}
\acro{LAGOS}[LAGOS]{Laser Antenna for Gravitational-radiation Observation in Space}
\acro{LCA}[LCA]{LISA Core Assembly}
\acro{LCM}[LCM]{NGO launch composite}
\acro{LDC}[LDC]{LISA Data Challenge}
\acro{LDPG}[LDPG]{LISA Data Processing Group}
\acro{LED}[LED]{light-emitting diode}
\acro{LEM}[LEM]{Laser Electrical Module}
\acro{LEOP}[LEOP]{Launch and Early Operations Phase}
\acro{LGA}[LGA]{low-gain antenna}
\acro{LIG}[LISA]{Laser Instrument Group}
\acro{LIGO}[LIGO]{\href{http://www.ligo.caltech.edu/}{Laser Interferemeter Gravitational Wave Observatory}}
\acro{LISA}[LISA]{\href{https://www.lisamission.org/}{Laser Interferometer Space Antenna}}
\acro{LIST}[LIST]{\href{http://list.caltech.edu/}{LISA International Science Team}}
\acro{LLD}[LLD]{launch lock device}
\acro{LMC}[LMC]{Large Magellanic Cloud}
\acro{LMF}[LMF]{LISA mission formulation study}
\acro{LOA}[LoA]{Letter of Agreement}
\acro{LOM}[LOM]{Laser Optical Module}
\acro{LOS}[LOS]{line of sight}
\acro{LPF}[LPF]{\href{http://lisapathfinder.esa.int}{LISA Pathfinder}}
\acro{LPS}[LPS]{Laser Pre-stabilization System}
\acro{LTPDA}[LTPDA]{LISA Technology Package Data Analysis}
\acro{LH}[LH]{Laser Head}
\acro{LO}[LO]{Local Oscillator}
\acro{LRI}[LRI]{Laser Ranging Instrument (on GRACE-FO)}
\acro{LS}[LS]{laser system}
\acro{LSG}[LSG]{LISA Science Group}
\acro{LSO}[LSO]{last stable orbit}
\acro{LSST}[LSST]{\href{http://www.lsst.org/lsst}{Large Synoptic Survey Telescope}}
\acro{LTP}[LTP]{LISA Technology Package}
\acro{LVA}[LVA]{launch vehicle adaptor}







% M
\acro{MAXI}[MAXI]{\href{http://www.nasa.gov/mission_pages/station/research/experiments/MAXI.html}{Monitor of All-sky X-ray Image}}
\acro{MBH}[MBH]{Massive Black Hole}
\acro{MBHB}[MBHB]{Massive Black Hole Binary}
\acro{MCMC}[MCMC]{Markov-chain Monte Carlo}
\acro{MEOP}[MEOP]{maximum expected operating pressure}
\acro{MGSE}[MGSE]{Mechanical Ground Support Equipment}
\acro{MLA}[MLA]{Multi-lateral agreement}
\acro{MLB}[MLB]{motorised light band}
\acro{MLDC}[MLDC]{\href{http://astrogravs.nasa.gov/docs/mldc/}{Mock LISA Data Challenge}}
\acro{MLI}[MLI]{multi layer insulation}
\acro{MMH}[MMH]{monomethyl hydrazine}
\acro{MO}[MO]{Maser Oscillator}
\acro{MOC}[MOC]{Mission Operation Centre}
\acro{MOFPA}[MOFPA]{Master Oscillator Fibre Power Amplifier}
\acro{MOPA}[MOPA]{Master Oscillator Power Amplifier}
\acro{MON-3}[MON-3]{mixed oxides of nitrogen with 3\% nitric oxide}
\acro{MOSA}[MOSA]{Moving Optical Sub-Assembly}
\acro{MOU}[MoU]{Memorandum of Understanding}
\acro{MRD}[LISA-MRD-001]{Mission Requirement Document}
\acro{MSC}[Mother-S/C]{``Mother'' spacecraft}
\acro{MSS}[MSS]{MOSA Support Structure}


% N
\acro{NASA}[NASA]{\href{http://www.nasa.gov}{National Aeronautic and Space Administration}}
\acro{NGO}[NGO]{New Gravitational wave Observatory}
\acro{NPRO}[NPRO]{non-planar ring oscillator}
\acro{NTC}[NTC]{Negative Temperature Coefficient}
\acro{NR}[NR]{numerical relativity}
\acro{NGMP}[NGMP]{Next Generation Micro Processor}



% O
\acro{OAS}[OAS]{optical assembly subsystem}
\acro{OATM}[OATM]{Optical Assembly Tracking Mechanism}
\acro{OAM}[OAM]{optical assembly mechanics}
\acro{OB}[OB]{Optical Bench}
\acro{OBA}[OBA]{Optical Bench Assembly}
\acro{OBC}[OBC]{on-board computer}
\acro{OGSE}[OGSE]{Optical Ground Support Equipment}
\acro{OMS}[OMS]{Optical Metrology System}
\acro{ORO}[ORO]{optical read-out}
\acro{OT}[OT]{optical truss}



% P

\acro{PA}[PA]{power amplifier}
\acro{PA}[PA]{Product Assurance}
\acro{PAA}[PAA]{point-ahead angle}
\acro{PAAM}[PAAM]{point-ahead angle mechanism}
\acro{Pan-Starrs}[Pan-Starrs]{\href{http://pan-starrs.ifa.hawaii.edu/public/}{the Panoramic Survey Telescope \& Rapid Response System}}
\acro{PCU}[PCU]{power conditioning unit}
\acro{PCDU}[PCDU]{power control and distribution unit}
\acro{PCP}[PCP]{Payload Commanding and Processing}
\acro{PCP-GSE}[PCP-GSE]{Payload Commanding and Processing Ground Support Equipment}
\acro{PCS}[PCS]{payload control subsystem}
\acro{PDD}[PDD]{payload description document}
\acro{PDF}[PDF]{probability density function}
\acro{PDH}[PDH]{Pound Drever Hall}
\acro{PD}[PD]{photo diode}
\acro{PDS}[PDS]{photo detector system}

\acro{PLL}[PLL]{phase-locked loop}
\acro{P/L}[P/L]{payload}
\acro{P/M}[P/M]{propulsion module}
\acro{PM}[PM]{Phasemeter}
\acro{PMF}[PMF]{Polarization-Maintaining Fibre}
\acro{PMFDE}[PMFDE]{phase meter frequency distribution electronics}
\acro{PMFEE}[PMFEE]{phase meter front-end electronics}
\acro{PMDSP}[PMDSP]{phase meter digital signal processor}
\acro{PMS}[PMS]{Phase Measurement Subsystem}
\acro{PN}[PN]{post-Newtonian}
\acro{PRN}[PRN]{pseudo-random noise, \emph{often} pseudo-noise}
\acro{PRDS}[PRDS]{Phase Reference Distribution System}
\acro{PRDS-OGSE}[PRDS-OGSE]{Phase Reference Distribution System - Optical Ground Support Equipment}
\acro{PRT}[PRT]{Platinum Resistance Thermometers}
\acro{PSD}[PSD]{Power Spectral Density}
\acro{PSF}[PSF]{point-spread function}
\acro{PTF}[PTF]{\href{http://www.astro.caltech.edu/ptf/}{Palomar Transient Factory}}



% Q
\acro{QA}[QA]{Quality Assurance}
\acro{QM}[QM]{Qualification Model}
\acro{QNM}[QNM]{quasi-normal mode}
\acro{QPD}[QPD]{quadrant photodetector}
\acro{QSO}[QSO]{quasi-stellar object}



% R
\acro{RATS}[RATS]{Rapid Time Survey}
\acro{REF}[REF]{reference}
\acro{RF}[RF]{radio frequency}
\acro{RIN}[RIN]{Relative Intensity Noise}
\acro{RIT}[RIT]{Radio-frequency Ion Thruster}
\acro{RM}[RM]{Radiation Monitor}
\acro{RMS}[RMS]{root mean square}
\acro{RSS}[RSS]{root sum square}
\acro{RTOS}[RTOS]{Real Time Operating System}
\acro{RXTE}[RXTE]{\href{http://heasarc.gsfc.nasa.gov/docs/xte/xtegof.html}{Rossi X-Ray Timing Explorer}}
\acro{RX}[RX]{received signal}


% S
\acro{S/C}[S/C]{spacecraft}
\acro{S/S}[S/S]{subsystem}
\acro{S/C-P/M}[S/C-P/M]{spacecraft/propulsion-module}
\acro{SAU}[SAU]{sensing and actuation unit}
\acro{SciRD}[LISA-ScRD-004]{Science Requirement Document}
\acro{SCOE}[SCOE]{Special Check Out Equipment}
\acro{SEP}[SEP]{Solar Energetic Particle}
\acro{SEPD}[SEPD]{single-element photo diode}
\acro{SIM}[SIM]{Space Interferometry Mission}
\acro{SIRD}[SIRD]{Science Implementation Requirement Document}
\acro{SIPs}[SIP]{Science Implementation Plan}
\acro{SIPs}[SIPs]{Science Implementation Plans}
\acro{SISO}[SISO]{single input/single output}
\acro{SDP}[SDP]{system data pool}
\acro{SDSS}[SDSS]{\href{http://www.sdss.org/}{Sloan Digital Sky Survey}}
\acro{SGS}[SGS]{Science Ground Segment}
\acro{SGWB}[SGWB]{Stochastic Gravitational Wave Background}
\acro{SMF}[SMF]{Single Mode Fiber}
\acro{SQUID}[SQUID]{Superconducting Quantum Interference Device}
\acro{SMBH}[SMBH]{super-massive black hole}
\acro{SMC}[SMC]{Small Magellanic Cloud}
\acro{SNR}[SNR]{Signal-to-Noise Ratio}
\acro{STM}[STM]{Structural and Thermal Model}
\acro{SBCC}[SBCC]{Single Board Computer Core}
\acro{SAVOIR}[SAVOIR]{\href{http://savoir.estec.esa.int/}{Space AVionics Open Interface aRchitecture}}
\acro{SOAD}[SOAD]{Science Operations Assumptions Document}
\acro{SOC}[SOC]{Science Operation Centre}
\acro{SOVT}[SOVT]{Science Operations Verifications Tests}
\acro{SRP}[SRP]{solar radiation pressure}
\acro{SSB}[SSB]{Solar System barycenter}
\acro{SST}[SST]{Science Study Team}
\acro{STR}[STR]{Coarse Star Tracker}
\acro{SWT}[SWT]{Science Working Team}




% T
\acro{TBC}[TBC]{to be confirmed}
\acro{TBD}[TBD]{to be determined}
\acro{TC}[TC]{Telecommand}
\acro{TCM}[TCM]{trajectory correction manoeuvre}
\acro{TC/TM}[TC/TM]{telecommand/telemetry}
\acro{TCLS}[TCLS]{\href{http://www.tcls-arm-for-space.eu/} {Triple Core LockStep}}
\acro{TDI}[TDI]{Time Delay Interferometry}
\acro{TM}[TM]{test mass, \emph{often proof mass}}
\acro{TECC}[TECC]{Transient Event Coordination Committee}
\acro{TM-OGSE}[TM-OGSE]{Test-Mass Optical Ground Equipment}
\acro{TNO}[TNO]{Nederlandse Organisatie voor Toegepast Natuurwetenschappelijk Onderzoek}
\acro{TOBA}[TOBA]{Telescope and Optical Bench Assembly}
\acro{TOGA}[TOGA]{Telescope, Optical bench and Gravitational reference sensor Assembly}
\acro{TSP}[TSP]{Temporal and Spatial Partitioning}
\acro{TP}[TP]{Telescope Pointing}
\acro{TRL}[TRL]{Technology Readiness Level}
\acro{TRP}[TRP]{temperature reference points}
\acro{TS}[TS]{Telescope}
\acro{TTC}[TT\&C]{telemetry, tracking, and command}
\acro{TTL}[TTL]{Tilt-To-Length}
\acro{TWTA}[TWTA]{traveling-wave tube amplifier}
\acro{TX}[TX]{transmit signal}






% U
\acro{USO}[USO]{ultra-stable oscillator}
\acro{UTC}[UTC]{Coordinated Universal Time}
\acro{ULU}[ULU]{UV light unit}
\acro{UV}[UV]{ultra-violet}



% V
\acro{VAST}[VAST]{\href{http://www.physics.usyd.edu.au/sifa/vast/index.php}{Variables and Slow Transients, An ASKAP Survey for Variables and Slow Transients is a Survey Science Project for the Australian SKA Pathfinder}}
\acro{VB}[VB]{Verification Binary}
\acro{VC}[VC]{Vacuum Chamber}
\acro{VMS}[VMS]{very massive star}


% W
\acro{WG}[WG]{Working Group}
\acro{WMAP}[WMAP]{\href{http://lambda.gsfc.nasa.gov/product/map/current/}{Wilkison Microwave Anisotropy Probe}}
\acro{WP}[WP]{Work Package}
\acro{WPs}[WPs]{Work Packages}
\acro{WR}[WR]{Wide Range}



% X
\acro{XML}[XML]{Extensible Markup Language}



% Y



% Z


