Acronyms
U
U
Up [position/coordinate/direction]
U, U.
U, U.
University
UAW
UAW
[GGOS/IERS] Unified Analysis Workshop
UBAD
UBAD
USNO Bright-Star Astrometric Database
UCAC
UCAC
USNO CCD Astrograph Catalog
UCL
UCLA
UCLA
University of California, Los Angeles
UCSD
UCSD
University of California, San Diego
UEZO/RJ
UEZO/RJ
Centro Universitário Estadual da Zona Oeste, Rio de Janeiro
UFRJ
UFRJ
Universidade Federal do Rio de Janeiro
UH
UH
University of Hawaii
UIC
UK, U.K.
UK, U.K.
United Kingdom
UKIDSS
UKIDSS
UKIRT Infrared Deep Sky Survey
UKIRT
UKMO
UKMO
Met Office (formerly: UK Meteorological Office)
ULR
ULR
University of La Rochelle, France
ULUX
ULUX
Utsteinen LUXemburg [Luxemburg station in Antarctica]
UN
UNB
UNB
University of New Brunswick
UNESCO
UNESCO
United Nations Educational, Scientific and Cultural Organization
Uni, Univ.
Uni, Univ.
University
unWISE
unWISE
unofficial, unblurred coadds of the WISE imaging
UPAD
UPAD
Universita di Padova and Telespazio S.P.A.
UPC
UPC
URAT Parallax Catalog
URAT
URAT
USNO Robotic Astrometric Telescope
URL
URL
Uniform Resource Locator
URSI
URSI
Union Radio-Scientifique Internationale / International Union of Radio Science
US, U.S.
US, U.S.
United States [of America]
USA
USA
United States of America
USGS
USN
USN
= USNO
USNO
USO
USO
Ultra Stable Oscillator
USU
USU
USNO Ultra Rapid orbits
UT
UT
= UTexas
UT, UT0, UT1, UT2
UT, UT0, UT1, UT2
UTA
UTA
University of Texas at Austin
UTAAM
UTAAM
NCEP [or NOAA] AAM analysis and forecast data
UTCSR
UTCSR
= CSR at UTexas
UTexas
UTexas
UTGPS
UTGPS
Universal Time-like quantity using Global Position System
UTXMO
UTXMO
UZ
UZ
Uzbekistan
