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Acronyms

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AC
Alternating Current
ACS
Attitude Control System
ADC
Analog to Digital Converter
AETD
Applied Engineering and Technology Directorate
AGIS
Atomic Gravitational-wave Interferometer Sensor
AGN
Active Galactic Nuclei
AI
Atom Interferometry
AIV
Assembly, Integration, and Verification
AIVT
Assembly Integration Verification and Test
ALMA
Atacama Large Millimeter/submillimeter Array
Am CVn
AM Canum Venaticorum star (cataclysmic variable)
AO
Announcement of Opportunity
AOCS
Attitude and Orbital Control System
APD
(NASA's) Astrophysics Division
ATLO
Assembly, Test, and Launch Operations
AU
Astronomical Unit
BEPAC
Beyond Einstein Program Assessment Review
BH
Black Hole
CAC
Cost at Completion
CE
Cosmic Explorer
CG
Cold Gas
CL
Confidence Level
CLHT
Can LISA Hear This? (Detectability Calculator)
CMB
Cosmic Microwave Background
CMNT
Colloidal micro-Newton Thruster
CMS
Charge Management System
CMU
Charge Management Unit
CNES
Centre National d'Études Spatiales
COMS
Communications System (telemetry)
CST
Community Science Team
CTE
Coefficient of Thermal Expansion
CW
Continuous Wave
CWD
Compact White Dwarf binaries
D/SRE
Director of Science & Robotic Exploration
DC
Direct Current
DCBH
Direct Collapse Black Hole
DCC
Data Computing Centre
DCIU
Digital Control Interface Unit
DDS
Data and Diagnostic Subsystem
DESI
Dark Energy Spectroscopic Instrument
DFACS
Drag-Free Attitude Control System
DMU
Data Management Unit
DOF
Degree(s) of Freedom
DPC
Data Processing Centre
DPLL
Digital Phase-locked Loop
DRS
Disturbance Reduction System
DSN
Deep Space Network
DSP
Data Signal Processing
DWD
Double White Dwarf (binary)
DWS
Differential Wavefront Sensing
E-ELT
European Extremely Large Telescope
ECSS
European Cooperation for Space Standardization
EELV
Evolved Expendable Launch Vehicle
EH
Electrode Housing
EIRP
Equivalent Isotropic Radiative Power
eLISA
Evolved Laser Interferometer Space Antenna
ELITE
European LISA Technology Experiment
EM
Engineering Model
EM
Electro-Magnetic
EMRI
Extreme Mass-Ratio Inspiral
EOM
Electro-Optic Monitor
EQM
Engineering Qualification Model
ESA
European Space Agency
ESTEC
European Space Research and Technology Centre
ET
Einstein Telescope
EW
Electro-weak (interaction)
FAQ
Frequently Asked Question(s)
FEE
Front End Electronics
FEEP
Field Emission Electric Propulsion
FM
Flight Model
FOV
Field of View
FPAG
Fundamental Physics Advisory Group
FPGA
Field-programmable gate array
GB
Galactic Binary
GMT
Giant Magellan Telescope
GOAT
Gravitational Observatory Advisory Team
GOCE
Gravity Field and Steady-State Ocean Circulation Explorer
GPRM
Grabbing Position Release Mechanism
GR
General Theory of Relativity
GRACE
Gravity Recovery and Climate Experiment
GRACE-FO
GRACE Follow-On
GRB
Gamma-Ray Burst
GRS
Gravitational Reference Sensor
GSE
Ground Support Equipment
GSFC
Goddard Space Flight Center
GW
Gravitational Wave
GW-WG
Gravitational-wave Observatory Working Group
H/W
Hardware
HEMP
High-Efficiency Micropropulsion
HEO
High Earth Orbit
HETO
Heliocentric Earth-Trailing Orbit
HGA
High Gain Antenna
HST
Hubble Space Telescope
I&T
Integration and Test(ing)
ICSO
Innermost Stable Circular Orbit
IFO
Interferometer
IMBH
Intermediate-mass black hole
IMBHB
Intermediate Mass Black Hole Binary
IMRI
Intermediate Mass-Ratio Inspiral
IMS
Interferometry Measurement System
InSpRL
Interferometer in Space for Detecting Gravity-wave Radiation using Lasers
IPC
Industrial Policy Committee
IPT
Integrated Product Team
iPTF
intermediate Palomar Transient Factory
ISC
Inter-spacecraft Laser Communication
ITAR
International Traffic in Arms Regulations
ITAT
Integrated Technical Advisory Team(s)
ITT
Invitation To Tender
JILA
Joint Institute for Laboratory Astrophysics
JPL
Jet Propulsion Laboratory
JWST
James Webb Space Telescope
KAGRA
Kamioka Gravitational-wave Detector
L3ST
L3 Study Team
LAGOS
Laser Antenna for Gravitational-radiation Observation in Space
LCC
Life Cycle Cost
LCL
LISA Consortium Lead
LED
Light-Emitting Diode
LEOP
Launch and Early Operations
LGA
Low Gain Antenna
LHC
Large Hadron Collider
LIGO
Laser Interferometer Gravitational-wave Observatory
LIMAS
LISA Instrument and Metrology Avionics System
LISA
Laser Interferometer Space Antenna
LMF
LISA Mission Formulation
LMT
Large Momentum Transfer
LOCS
LISA Opto-mechanical Core System
LPF
LISA Pathfinder
LRI
Laser-Ranging Interferometer
LSST
Large Synoptic Survey Telescope
LTP
LISA Pathfinder Technical Payload
MA
Mission Assurance
MBH
Massive black hole
MBHB
Massive black hole binary
MBW
Measurement Bandwidth
MEL
Master Equipment List
MICADO
Multiadaptive Optics Imaging Camera for Deep Observations
MICROSCOPE
Micro-satellite à traînée Compensée pour l'Observation du Principe d'Equivalence
MLDC
Mock LISA Data Challenge
MOC
Mission Operations Centre
MOLA
Mars Orbiter Laser Altimeter
MOPA
Master Oscillator Power Amplifier
MOT
Magneto-Optical Trap
MOU
Memorandum of Understanding
MPR
Mission Performance Requirement
MR
Measurement Requirement
MR
Mission Requirement
MS
Main Sequence
MSEM
Mission Systems Engineering Managers
NANOGrav
North American Nanohertz Observatory for Gravitational Waves
NASA
National Aeronautics and Space Administration
NGO
New Gravitational-wave Observatory
NICM
NASA Instrument Cost Model
NLS
NASA Launch Services
NLSO
NASA LISA Study Office
NLST
NASA LISA Study Team
NRC
National Research Council
NRE
Non-Recurring Engineering
NS
Neutron Star
NSPIRES
NASA Solicitation and Proposal Integrated Review and Evaluation System
NWNH
New Worlds New Horizons
OB
Optical Bench
OMS
Optical Measurement System
OR
Operational Requirement
P/L
Payload
P/M
Propulsion Module
PAA
Point-Ahead Angle
PAAM
Point Ahead Actuation Mechanism
PBH
Primordial Black Hole
PCOS
Physics of the Cosmos
PDR
Project Design Review
PEM
Payload Engineering Model
PFM
Proto-Flight Model
PI
Principal Investigator
PL
Power-Law (model)
PM
Project Management, Phase Meter, or Proof Mass
PPU
Power Processing Unit
PSD
Power spectral density
PSR
Pulsar
PTA
Pulsar Timing Array
QM
Qualification Model
QNM
Quasi-Normal Mode
QSO
Quasi-Stellar Object
RFI
Request for Information
RFP
Request for Proposal
RIT
Radio frequency Ion Thruster
RTB
Real-time Test Bed
RX
Received Laser (from far Spacecraft)
RY
Real Year
S/C, SC
Spacecraft
S/W
Software
SciRD
Science Requirements Document
SCO
Stellar-mass Compact Object
SCOE
Special Check Out Equipment
SE
System Engineer(ing)
SEP
Solar Energetic Paricle
SGO
Space-based Gravitational-wave Observatory
SGWB
Stochastic Gravitational-wave Background
SI
Science investigation
SIR
System Integration Review
SKA
Square Kilometer Srray
SNR
Signal-to-Noise ratio
SO
Science objective
SOBH
Stellar origin black hole
SOC
Science Operations Centre
SODPC
Science Operations Data Processing Center
SPC
Science Programme Committee
SRR
System Requirements Review
SS
Sub-system
SSC
Senior Science Committee
STM
Structural Thermal Model
STOC
Science Technology Operations Centre
TAA
Technical Assistance Agreement
TDA
Technology Development Activities
TDI
Time-Delay interferometry
TDI X
LISA's 2-arm configuration
TM
Test Mass
TMT
Thirty Meter Telescope
TRIP
Technical Readiness and Implementation Plan
TRL
Technical Readiness Level
TX
Transmitted Laser (main laser in OB)
UCB
Ultra-Compact Binaries
ULX
Ultra-Luminous X-ray source
URL
Uniform Resource Locator
USO
Ultra Stable Oscillator
UV
Ultraviolet
V&V
Verification and Validation
VIRCAM
Visible and Infrared Survey Telescope for Astronomy
WD
White Dwarf
WFI
Wide-Field Imager (ATHENA mission)
WFIRST
Wide-Field Infrared Survey Telescope
WSB
Weak Stability Boundary
XGNSB
Extragalactic Neutron Star Binary
ZTF
Zwicky Transient Facility