Abbreviation and Acronym Finder
How to Use: Follow the hyperlinks in the single-row table
below by pressing CRTL while clicking the hyperlink. Find the
acronym or abbreviation and corresponding meaning. Some
entries may have additional detail at the Reference given
(names in brackets refer to the reference at the end of the
table). Many entries have more than one meaning and the correct one should be clear from the
context.
A B C D E F G H I J K L M N O P Q R S T U V W X Y Z
Acronym or
Abbreviation
Meaning
Reference
A
A
A&A
AAA
AAAS
AAM
AAO
AAS
AAT
AAVSO
ac or AC
ACE
ACIS
ACM
ADC
ADEC
ADF
ADIS
ADS
AEN
ampere or ampere-turn
Astronomy & Astrophysics
Amateur Astronomers Association of New
York
American Association for the
Advancement of Science
Atmospheric Angular Momentum
Australian Astronomical Observatory
(prior name)
American Astronomical Society
Anglo-Australian Telescope
American Association of Variable Star
Observers
Alternating Current
Advanced Composition Explorer
spacecraft
Advanced CCD Imaging Spectrometer
Asteroids, Comets, and Meteors
Astronomical Data Center, or
Analog-Digital Converter
Astrophysics Data Centers Executive
Council
Astrophysics Data Facility
Astrophysics Data and Information
Services
Astrophysics Data Service, or
Aitken Double Stars
Alfred E. Neuman
[IEEE]
[Wikipedia]
[Wikipedia]
[AAAS]
[Haystack]
[Wikipedia]
[Wikipedia]
[Wikipedia]
[Wikipedia]
[Wikipedia]
[Wikipedia]
[Wikipedia]
[Wikipedia]
[Wikipedia]
[Wikipedia]
[Wikipedia]
[Unknown]
Abbreviation and Acronym Finder
AFGL
AFOSR
AG
AGC
AGK
AGL
AGN
AGU
Ah
AJ
ALaMO
ALMA
ALPO
AM
AMANDA
AMS
AMSL
AN
ANSI
ANT
APO
APOD
APRS
ARA
ARC
ARES
ARISS
ARRL
ASA
ASIAA
ASK
ASG
ASP
ASV
ATA
Air Force Geophysics Laboratory
Air Force Office of Scientific Research
Astronomische Gesellschaft
Automatic Gain Control
Astronomische Gesellschaft Katalog
Above Ground Level
Active Galactic Nucleus
American Geophysical Union
ampere-hour
Astronomical Journal
Automated Lunar and Meteor
Observatory
Atacama Large Millimeter/Sub-millimeter
Array
Association of Lunar and Planetary
Observers
Amplitude Modulation
Antarctic Muon And Neutrino Detector
Array
American Meteor Society
Above Mean Sea Level
Astronomische Nachrichten
American National Standards Institute
Antenna
Apache Point Observatory
Astronomy Picture of the Day
Automatic Position Reporting System, or
Amateur Radio Packet Service
Amateur Radio Astronomy
Ames Research Center, or
Astrophysical Research Consortium
Amateur Radio Emergency Service
Amateur Radio on International Space
Station
American Radio Relay League
Astronomical Society of the Atlantic
Academia Sinica Institute of Astronomy
and Astrophysics
Amplitude Shift Keying
Atmospheric Sciences Group
Astronomical Society of the Pacific
Astronomical Society of Victoria
Allen Telescope Array
[Wikipedia]
[Haystack]
[Wikipedia]
[Wikipedia]
[Wikipedia]
[Wikipedia]
[Wikipedia]
[Wikipedia]
[Wikipedia]
[Wikipedia]
[Wikipedia]
[Wikipedia]
[Wikipedia]
[Wikipedia]
[Wikipedia]
[Wikipedia]
[ARRL]
[ARRL]
[Wikipedia]
[Wikipedia]
[Haystack]
[Wikipedia]
[ASV]
[Wikipedia]
Abbreviation and Acronym Finder
ATCA
atm
ATM
ATMoB
ATV
AU
AUASS
AURA
AVC
Az or AZ
Australia Telescope Compact Array
atmosphere
Amateur Telescope Making
Amateur Telescope Makers of Boston
Amateur TeleVision
Astronomical Unit
Arab Union for Astronomy and Space
Sciences
Association of Universities for Research in
Astronomy
Automatic Volume Control
Azimuth
[Wikipedia]
[IEEE]
[Wikipedia]
[Haystack]
[ARRL]
[Wikipedia]
[Wikipedia]
[Wikipedia]
B
BAA
BAAS
BAC
BAO
BASIS
BAT
BB
BCD
BCE
BCEP
BCG
BCVS
Bd
BEL
BEN
BF
BH
BHC
BIMA
BIS
BITP
BNSC
BOAO
British Astronomical Association
Bulletin of the American Astronomical
Society
Bordeaux Astrographic Catalog
Beijing Astronomical Observatory
Burst and All Sky Imaging Survey
Burst Alert Telescope
Black Body
Blue Compact Dwarf, or
Basic Calibrated Data, or
Binary Coded Decimal
Beta CEphei
Beta CEPhei
Blue Compact Galaxy, or
Brightest Cluster Galaxy
Bibliographic Catalogue of Variable Stars
baud
Broad Emission Line clouds
Jack Bennett catalog
Broadening Function
Black Hole
Black Hole Candidate
Berkeley-Illinois-Maryland Association
British Interplanetary Society
Bogolyubov Institute for Theoretical
Physics
British National Space Centre
Bohyunsan Optical Astronomy
[Wikipedia]
[Wikipedia]
[Wikipedia]
[Wikipedia]
[Wikipedia]
[Wikipedia]
[Wikipedia]
[Wikipedia],
[Wikipedia],
[Wikipedia]
[Wikipedia]
[Wikipedia]
[Wikipedia]
[IEEE]
[Wikipedia]
[Wikipedia]
[Wikipedia]
[Wikipedia]
[Wikipedia]
[Wikipedia]
[Wikipedia]
[Wikipedia]
[Wikipedia]
[Wikipedia]
Abbreviation and Acronym Finder
BPF
BPM
bps
BRF
BSG
BSS
Btu
BW
Observatory
Band Pass Filter
Bruce Proper Motion
bit per second (b/s preferred)
Band Reject Filter
Blue Super Giant
Blue Straggler Star, or
Bigelow Sky Survey
British thermal unit
BeamWidth, or
BandWidth
[Wikipedia]
[Wikipedia]
[Wikipedia]
[IEEE]
C
CADC
CAHA
Cal
CAPS
CARA
CASCA
CASS
CBR
CCD
CCDM
CCO
CCS
Cd
CD
CDIMP
CDM
CDS
CEDAR
Canadian Astronomy Data Centre
Centro Astronómico Hispano Alemán
calorie
CAssini Plasma Spectrometer
California Association for Research in
Astronomy, or
Center for Astrophysical Research in
Antarctica
Canadian Astronomical Society / Société
canadienne d'astronomie
Center for Advanced Space Studies
Cosmic Background Radiation
Charge Coupled Device, or
Color-Color Diagram
Catalog of Components of Double and
Multiple Stars
Catalogue of Cometary Orbits, or
Central Compact Object
Cool Carbon Star
candle
Cordoba Durchmusterung, or
Compact Disk
Catalogue of Discoveries and
Identifications of Minor Planets
Cold Dark Matter
Centre de Données astronomiques de
Strasbourg
Coupling, Energetics and Dynamics of
Atmospheric Regions
[Wikipedia]
[Wikipedia]
[IEEE]
[Wikipedia]
[Wikipedia]
[Wikipedia
[Wikipedia
[Wikipedia]
[Wikipedia]
[Wikipedia]
[Wikipedia]
[IEEE]
[Wikipedia],
[Wikipedia]
[Wikipedia]
[Wikipedia]
[Haystack]
Abbreviation and Acronym Finder
CELT
CEMP
CEP
CEPS
CfA
CG
CGRO
CGS
CGSS
CHARA
CH HSS
CIB
CIBR
CIO
cm
CM
CMB
CMBR
CMC
CMD
CME
CM
cmil
CML
CNB
CNES
Coax
COBE
Col
CSA
CSI
CSO
CSS
CSV
CTIO
CW
CXBR
California Extremely Large Telescope
Carbon-Enhanced Metal-Poor star
CEPheid
Center for Earth and Planetary Studies
Center for Astrophysics
Center of Gravity, or
Cometary Globual, or
Compact Galaxy
Compton Gamma Ray Observatory
centimeter-gram-second
Catalog of Galactic S-Stars
Center for High Angular Resolution
Astronomy
Coronal Hole High-Speed Stream
Cosmic Infrared Background
Cosmic Infrared Background Radiation
Catalog of Infrared Observations
centimeter
Center of Mass
Cosmic Microwave Background
Cosmic Microwave Background Radiation
Carlsberg Meridian Catalog
Color Magnitude Diagram
Coronal Mass Ejection
Central Meridian
circular mil
Central Meridian Longitude
Cosmic Neutrino Background
Center Nationale d’Etudes Spatiales
Coaxial cable
COsmic Background Explorer
Collinder catalog
Canadian Space Agency
Catalog of Stellar Identification
Caltech Submillimeter Observatory
Catalina Sky Survey
Catalog of Suspected Variables
Cerro Tolodo Interamerican Observatory
Carrier Wave, or
Continuous Wave
Cosmic X-ray Background Radiation
[Wikipedia]
[Wikipedia]
[Wikipedia]
[Wikipedia]
[Wikipedia]
[Wikipedia]
[Wikipedia]
[Wikipedia]
[Wikipedia]
[Wikipedia]
[Wikipedia]
[IEEE]
[Wikipedia]
[Wikipedia]
[Wikipedia]
[IEEE]
[Wikipedia]
[Wikipedia]
[Wikipedia]
[Wikipedia]
[Wikipedia]
[Wikipedia]
[Wikipedia]
[Wikipedia]
[Wikipedia]
[Wikipedia]
[Wikipedia]
Abbreviation and Acronym Finder
D
d
DAC
DAO
dB
dBc
dBd
dBi
dBm
dBV
dBu
dBV
dBW
dc or DC
DDRR
Dec or DEC
deg
DES
DFT
Dish
DoD
DPOSS
DSN
DSP
DSS
DST
DX
dyn
day
Digital-Analog Converter
Dominion Astrophysical Observatory
deciBel
dB with respect to carrier level
dB with respect to dipole antenna
dB with respect to isotropic antenna
dB with respect to 1 milliwatt
dB with respect to 1 microvolt
dB with high impedance termination
(unloaded)
dB with respect to 1 volt
dB with respect to 1 watt
Direct Current
Directional Discontinuity Ring Radiator
Declination
degree
Dark Energy Survey, or
Deep Elliptic Survey
Discrete Fourier Transform
parabolic or spherical dish antenna
Department of Defense
Digitized Palomar Observatory Sky Survey
Deep Space Network
Digital Signal Processing, or
Digital Signal Processor
Digitized Sky Survey
Daylight Saving Time
Distance
dyne
[IEEE]
[Wikipedia]
[Wikipedia]
[Wikipedia]
[Wikipedia]
[IEEE]
E
ECA
EHF
El or EL
ELT
E-ELT
EMI
EMP
Earth Crossing Asteroid
Extra High Frequency
Elevation
Extremely Large Telescope, or
Emergency Locator Transmitter
European Extremely Large Telescope
ElectroMagnetic Interference
ElectroMagnetic Pulse, or
[Wikipedia]
[Wikipedia]
Abbreviation and Acronym Finder
EOR
ESA
ESRO
ET
EUV
eV
e-VLBI
EVN
Ephermerides of Minor Planets
Epoch of Re-ionization
European Space Agency
European Space Research Organization
Ephemeris Time, or
Elapsed time
Extreme Ultra-Violet
electronvolt
electronic-VLBI
European VLBI Network
[Haystack]
[IEEE]
[Haystack]
F
F
fc
FCC
FFT
FIR
fL
FLWO
fm
FM
FPI
FR
FSC
FSK
FSTV
ft
FWHM
farad
footcandle
Federal Communications Commission
Fast Fourier Transform
Far InfraRed
footlambert
Fred L. Whipple Observatory
femtometer
Frequency Modulation
Fabry-Perot Interferometers
Faraday Rotation
Faint Source Catalog
Frequency Shift Keying
Fast Scan TeleVision
foot
Full Width Half-Maximum
[IEEE]
[IEEE]
[IEEE]
[Wikipedia]
[IEEE]
[Haystack]
[Haystack]
[Wikipedia]
[ARRL]
[IEEE]
G
g
G
gal
Gb
GBT
GC
GCVS
GHz
GEM
gram
gauss, or
Gravitational constant
gallon
gilbert
Green Bank Telescope
Galactic Center, or
General Catalog
General Catalog of Variable Stars
gigahertz
Galileo Europa Mission
[IEEE]
[IEEE]
[IEEE]
[Wikipedia]
[IEEE]
[Wikipedia]
Abbreviation and Acronym Finder
GEO
GeV
GLAST
GMF
GMRT
GMT
GND
GNSS
GOES
GPS
gr
GR
GRB
GRD
GRO
GRS
GSC
GSFC
GST
Geosynchronous Earth Orbit, or
Geostationary Earth Orbit
billion electronvolts (gigaelectronvolts)
Gamma-ray Large Area Space Telescope
Galactic Magnetic Field
Giant Meter Radio Telescope
Greenwich Mean Time, or
Giant Magellan Telescope
Ground (see also GRD)
Global Navigation Satellite System
Geostationary Observational
Environmental Satellite
Global Positioning Satellite
grain
General Relativity
Gamma-Ray Burst
Ground
Gamma-Ray Observatory
Great Red Spot
Guide Star Catalog
Goddard Space Flight Center
Greenwich Sidereal Time
[IEEE]
[Wikipedia]
[Wikipedia]
[Wikipedia]
[NASA]
[Haystack]
[IEEE]
[Wikipedia]
[Wikipedia]
[Wikipedia]
H
h
H
He
HI
HAO
HAARP
HCO
HEAO
Hz
HF
HGA
HIPPARCOS
hp
HPBW
HPF
HRMS
hour
henry
Helium
neutral hydrogen
High Altitude Observatory
High frequency Active Auroral Research
Program
Harvard College Observatory
High-Energy Astronomical Observatory
hertz
High Frequency
High Gain Antenna
High-Precision PARallax Collecting
Satellite
horsepower
Half-Power BeamWidth
High Pass Filter
High Resolution Microwave Survey
[IEEE]
[IEEE]
[Haystack]
[Wikipedia]
[Wikipedia]
[IEEE]
[Wikipedia]
[IEEE]
[Wikipedia]
Abbreviation and Acronym Finder
HST
HV
Hubble Space Telescope
High Voltage
I
IARU
IAU
IEEE
ICE
ICRF
ICRS
IDA
IDS
IF
IGM
IGY
IMO
IMACT
in
IoA
IPS
IR
IPM
ISM
ISO
ISR
ISSA
ITU
ITU-R
ITU-T
International Amateur Radio Union
International Astronomical Union
Institute of Electrical and Electronics
Engineers
International Comet Explorer
International Celestial Reference Frame
International Celestial Reference System
International Dark Sky Association
Index catalog of Double Stars
Intermediate Frequency
Inter-Galactic Medium
International Geophysical Year
International Meteor Organization
International Monitoring Program for
Asteroid and Comet Threat
inch
Institute of Astronomy (Cambridge)
Interplanetary Scintillation
InfraRed
Inter-Planetary Medium
Inter-Stellar Medium
Infrared Space Observatory
Incoherent Scatter Radar
Infrared Sky Survey Atlas
International Telecommunications Union
International Telecommunications Union
– Radio communication sector
International Telecommunications Union
– Telecommunication sector
[ARRL]
[Wikipedia]
[Wikipedia]
[Wikipedia]
[Wikipedia]
[Wikipedia]
[Wikipedia]
[Wikipedia]
[Wikipedia]
[IEEE]
[Haystack]
[Haystack]
[Wikipedia]
[Haystack]
[Wikipedia]
J
J
JCMT
JD
JGR
JPL
JRO
joule
James Clerk Maxwell Telescope
Julian Date or Julian Day
Journal of Geophysical Research
Jet Propulsion Laboratory
Jicamarca Radio Observatory
[IEEE]
[Wikipedia]
[Haystack]
Abbreviation and Acronym Finder
JSC
Jy
Johnson Space Center
jansky
K
K
KBO
KCAO
kg
kG
kHz
km/h
kn
KPNO
kV
kVA
kvar
kW
kWh
kelvin
Kuiper Belt Object
Kumamoto Civil Astronomical
Observatory
kilogram
kilogauss
kilohertz
kilometer per hour
knot
Kitt Peak National Observatory
kilovolt
kilovoltampere
kilovar
kilowatt
kilowatthour
[IEEE]
[Wikipedia]
[IEEE]
[IEEE]
[IEEE]
[IEEE]
[IEEE]
[IEEE]
[IEEE]
[IEEE]
[IEEE]
[IEEE]
L
L
LAN
LANL
LASCO
Laser
lb
LBNL
LC
LCROSS
LEO
LF
LGA
LGM
lm
LMC
LNA
LNB
LOD
liter
Local Area Network
Los Alamos National Laboratory
Large Angle Spectrometric Coronograph
Light amplification by stimulated
emission
pound
Lawrence Berkeley National Laboratory
inductance-Capacitance
Lunar CRater Observation and Sensing
Satellite
Low Earth Orbit
Low Frequency
Low Gain Antenna
Little Green Men
lumen
Large Magellanic Cloud
Low Noise Amplifier
Low Noise Block converter
Length of Day
[IEEE]
[IEEE]
[Wikipedia]
[IEEE]
[Haystack]
Abbreviation and Acronym Finder
LOFAR
LL
LPA
LPDA
LPO
LPF
LPV
LSB
LSR
LST
LV
lx
ly or lyr
LOw-Frequency ARray
Lincoln Laboratory
Log Periodic Antenna
Log Periodic Dipole Antenna, or
Log Periodic Dipole Array
La Palma Observatory
Low Pass Filter
Long Period Variable
Lower Side Band
Local Standard of Rest
Local Sidereal Time, or
Landing Ship – Tank
Low Voltage
lux
lightyear
[Haystack]
[Wikipedia]
[Wikipedia]
[IEEE]
M
m
mA
MACS
Maser
mbar
MBR
MEO
MeV
MF
mg
mH
MHz
MHD
MHO
mi
mi/h
A
F
G
H
m
s
T
W
meter
milliampere
Magellanic Catolog of Stars
Microwave Amplification by Stimulated
Emission
millibar
Microwave Background Radiation
Medium Earth Orbit
megaelectronvolt
Medium Frequency
milligram
millihenry
megahertz
Magneto-Hydro Dynamic
Millstone Hill Observatory
mile (statute)
mile per hour
microampere
microfarad
microgauss
microhenry
micron or micrometer
microsecond
microtesla
microwatt
[IEEE]
[IEEE]
[Wikipedia]
[IEEE]
[IEEE]
[IEEE]
[IEEE]
[Haystack]
[IEEE]
[IEEE]
[IEEE]
[IEEE]
[IEEE]
[IEEE]
[IEEE]
[IEEE]
[IEEE]
Abbreviation and Acronym Finder
MIDAS
min
MISA
MIT
MJD
mL
mm
MKS
mo
mol
MOST
mph
MSK
MRO
ms
MSP
MST
MUF
mV
mW
MW
MWA
Mx
Millstone Incoherent Scatter Data
Acquisition System
minute
Millstone Incoherent Scatter Antenna
Massachusetts Institute of Technology
Modified Julian Date
milliliter
millimeter
meter-kilogram-second
month
mole
Molonglo Observatory Synthesis
Telescope
mile per hour (see mi/h)
Minimum Shift Keying
Mars Reconnaissance Orbiter
millisecond
MlliSecond Pulsar
Mesosphere, Stratosphere, Troposphere
Maximum Usable Frequency
millivolt
milliwatt
Microwave, or
Milky Way
Mileura Widefield Array
maxwell
[Haystack]
[IEEE]
[Haystack]
[Haystack]
[Wikipedia]
[IEEE]
[IEEE]
[IEEE]
[IEEE]
[Wikipedia]
[IEEE]
[Wikipedia]
[Haystack]
[IEEE]
[IEEE]
[Haystack]
[IEEE]
N
N
nA
NAIC
NAMN
NAOJ
NAOO
NASA
NB
NBS
NCAR
newton
nanoampere
National Astronomy and Ionosphere
Center
North American Meteor Network
National Astronomical Observatory of
Japan
National Oceanic and Atmospheric
Administration
National Aeronautics and Space
Administration
Noise Blanker
National Bureau of Standards
National Center for Atmospheric
[IEEE]
[IEEE]
[Haystack]
[Wikipedia]
[Wikipedia]
[Haystack]
Abbreviation and Acronym Finder
NEROC
nF
NGC
nH
NIMS
NIR
NIST
nm
nmi
Np
NRAO
NRL
NSF
NSO
ns
NSSDC
nT
Research
Northeast Radio Observatory Corporation
nanofarad
New General Catalog
nanohenry
Near-Infrared Mapping Spectrometer
Near InfraRed
National Institute of Standards and
Technology
nanometer
nautical mile
neper
National Radio Astronomy Observatory
Naval Research Laboratory
National Science Foundation
National Solar Observatory
nanosecond
National Space Science Data Center
nanotesla
[Haystack]
[IEEE]
[Wikipedia]
[IEEE]
[Wikipedia]
[IEEE]
[IEEE]
[IEEE]
[Haystack]
[Haystack]
[Wikipedia]
[IEEE]
[Wikipedia]
O
OCXO
Oe
OSS
OTHB
OTHR
oz
Oven Controlled crystal Oscillator
oersted
Ohio Sky Survey
Over-The-Horizon Backscatter
Other-The-Horizon Radar
ounce
[IEEE]
[IEEE]
P
P
Pa
pA
PBL
PC
PEP
pF
pk
PMC
p-p
PSK
PSR
poise
pascal
picoampere
Plasmasphere Boundary Layer
Personal Computer
Peak Envelope Power
picofarad
peak
Polar Mesospheric Cloud
peak-to-peak
Phase Shift Keying
PulSaR
[IEEE]
[IEEE]
[IEEE]
[Haystack]
[IEEE]
[Haystack]
Abbreviation and Acronym Finder
pt
pW
pint
picowatt
[IEEE]
[IEEE]
Q
Quasar
QRP
QSL
QSO
qt
QUASi-StellAR object
low power
amateur radio communication
confirmation card
Quasi-Stellar Object
quart
[IEEE]
R
RA
rad
RADAR
RAG
RAM
RAS
RC
RF
RFI
RGB
RGO
RJP
RLAN
ROM
RPM
RSA
RSN
RSP
RSS
RTTY
RX
Right Ascension, or
Radio Astronomy
radian
RAdio Detection And Ranging
Radio Astronomy Group
Random Access Memory
Radio Astronomy Section, or
Radio Astronomical Society
Resistance-Capacitance
Radio Frequency
Radio Frequency Interference
Red-Green-Blue
Royal Greenwich Observatory
Radio-Jupiter Pro
Radio Local Area Network
Read Only Memory
revolutions per minute (r/min preferred)
Russian Space Agency
Radio SuperNova
Radio-SkyPipe
Radio-Sky Spectrograph
Radio TeleTYpe
Receiver
[IEEE]
[Haystack]
[Wikipedia]
[Wikipedia]
[Wikipedia]
S
s
S
SA
SAAO
second
siemens
Spectrum Analyzer
South African Astronomical Observatory
[IEEE]
[IEEE]
[Wikipedia]
Abbreviation and Acronym Finder
SAPS
SARA
SAW
Scope
SDO
SED
SETI
SGC
SHF
SI
SID
SKA
SKED
SL
SL-9
SMA
SN
SNR
SOHO
SPARC
sr
SR
SRT
SSB
SSTV
sterad
STEREO
SW
SWL
SWR
Sync
Sub-Auroral Polarization Stream
Society of Amateur Radio Astronomers
Surface Acoustic Wave
radio teleScope or optical teleScope or
oscilloScope
Solar Dynamics Observatory
Storm-Enhanced Density
Search for Extraterrestrial Intelligence
Superior Geocentric Conjuction
Super High Frequency
International System of Units
Sudden Ionospheric Disturbance
Square Kilometer Array
Schedule
Shoemaker-Levy, or
SpaceLab
Shoemaker-Levy comet
SubMillimeter Array
SuperNova
Signal-to-Noise Ratio, or
SuperNova Remnant
SOlar Heliospheric Observatory
Space Physics & Aeronomy Research
Collaboratory
steradian
Special Relativity
Small Radio Telescope
Single Side Band
Slow Scan TeleVision
steradian (see sr)
Solar TErrestrial RElations Observatory
spacecraft
ShortWave
ShortWave Listening
Standing Wave Ratio (see VSWR)
Synchronization
[Haystack]
[NASA]
[Haystack]
[Haystack]
[Wikipedia]
[Haystack]
[IEEE]
[Wikipedia]
[Haystack]
[ARRL]
[NASA]
T
T2FD
t
T
TAI
Tilted Terminated Folded Dipole antenna
metric ton
tesla
International Atomic Time
[IEEE]
[IEEE]
Abbreviation and Acronym Finder
TASS
TCXO
TEC
thm
TIMED
TT
TWR
TWT
TWTA
TX
The Amateur Sky Survey
Temperature Compensated crystal
Oscillator
Total Electron Content
therm
Thermosphere Ionosphere Mesosphere
Energetics and Dynamics
Terrestrial Time
ToWeR
Traveling Wave Tube
Traveling Wave Tube Amplifier
Transmitter
[Wikipedia]
[Haystack]
[IEEE]
[Haystack]
[Wikipedia]
U
UCAR
UFO
UHF
UKRAA
UKSA
URSI
USAF
USB
USGS
USNO
UT
UTC
UV
uVLBI
University Corporation for Atmospheric
Research
Unidentified Flying Object
Ultra-High Frequency
United Kingdom Radio Astronomy
Association
UK Space Agency
International Union of Radio Science
United States Air Force
Upper Side Band
United States Geological Survey
United States Naval Observatory
Universal Time
Universal Coordinated Time
Ultra-Violet
Ultra-wideband VLBI
[Haystack]
[Wikipedia]
[Haystack]
[Haystack]
[Haystack]
V
V
VA
var
VHF
VISR
VLA
VLBA
VLBI
VLF
volt
voltampere
voltampere-reactive
Very High Frequency
Virtual Incoherent Scatter Radar
Very Large Array
Very Long Baseline Array
Very Long Baseline Interferometry
Very Low Frequency
[IEEE]
[IEEE]
[IEEE]
[Haystack]
[Haystack]
[Haystack]
Abbreviation and Acronym Finder
VLT
VSI
VSWR
Very Large Telescope
VLBI Standard Interface
Voltage Standing Wave Ratio
[Wikipedia]
[Haystack]
W
W
Wb
WG
Wh
WMW
watt
weber
WaveGuide
watthour
What Me Worry?
[IEEE]
[IEEE]
[IEEE]
[Unknown]
X
XO
XUV
crystal Oscillator
eXtreme Ultra-Violet
Y
yd
yr
yard
year
[IEEE]
[IEEE]
Z
ZIP
Zenith Ionospheric Profiler
[Haystack]
References:
[AAAS]
[ARRL]
[Haystack]
[IEEE}
[NASA]
[Wikipedia]
http://www.aaas.org/
http://www.arrl.org
http://www.haystack.mit.edu/hay/glossary.html
http://www.ieee.org
http://www.nasa.gov
http://en.wikipedia.org/wiki/List_of_astronomy_acronyms