=head1 NAME

Time::TT::Agencies - list of Terran horological agencies

=head1 DESCRIPTION

Precision timekeeping on Terra is a complex task undertaken by a group of
about seventy agencies around the planet, mostly national metrological
laboratories.  The time scales that they produce are conventionally
labelled using short abbreviations, mostly of two to four letters,
identifying the agency concerned.  This document lists the abbreviations
and their meanings.

The BIPM maintains a similar list at
L<ftp://ftp2.bipm.fr/pub/tai/publication/acronyms.txt>, but that only
includes current laboratory abbreviations, and does not include special
cases such as GPS.  The list below is more complete.

=head1 AGENCIES

=over

=item B<AMC>

Alternate Master Clock station of USNO, Colorado Springs, Colorado, United States of America

=item B<AOS>

Astrogeodynamical Observatory, Space Research Centre P.A.S., Borowiec, Poland

=item B<APL>

Applied Physics Laboratory, Laurel, Maryland, United States of America

=item B<ASMW>

[no information available]

=item B<AUS>

consortium of laboratories in Australia

=item B<BEV>

Bundesamt fur Eich- und Vermessungswesen (Federal Office for Calibration and Surveying), Vienna, Austria

=item B<BIM>

Bulgarian Institute of Metrology, Sofia, Bulgaria

=item B<BIPM>

Bureau international des poids et mesures (International Bureau of Weights and Measures), Sevres, France

=item B<BIRM>

Beijing Institute of Radio Metrology and Measurement, Beijing, People's Republic of China

=item B<BY>

Belarussian State Institute of Metrology, Minsk, Belarus

=item B<CAO>

Stazione Astronomica di Cagliari (Cagliari Astronomical Observatory), Cagliari, Italy

=item B<CH>

Metrology and Accreditation (METAS), Bern, Switzerland

=item B<CNM>

Centro Nacional de Metrologia (CENAM) (National Centre of Metrology), Queretaro, Mexico

=item B<CNMP>

Centro Nacional de Metrologia de Panama (National Centre of Metrology of Panama), Panama

=item B<CRL>

Communications Research Laboratory, Tokyo, Japan (renamed to NICT in 2004-04)

=item B<CSAO>

[name missing], Lintong, People's Republic of China (renamed to NTSC in 2002-01)

=item B<CSIR>

Council for Scientific and Industrial Research, Pretoria, South Africa (renamed to ZA in 2007-01)

=item B<DLR>

Deutsche Zentrum fur Luft- und Raumfahrt (German Aerospace Centre), Oberpfaffenhofen, Germany

=item B<DMDM>

Direkcija za mere i dragocene metale (Directorate of Measures and Precious Metals), Belgrade, Serbia

=item B<DPT>

[name and location missing] (renamed to CSIR in 1993)

=item B<DTAG>

Deutsche Telekom AG, Frankfurt am Main, Germany

=item B<EIM>

Ellyniko Institouto Metrologias (Hellenic Institute of Metrology), Thessaloniki, Greece

=item B<F>

Commission Nationale de l'Heure (National Time Commission), Paris, France

=item B<FTZ>

Forschungs- und Technologiezentrum (Research and Technology Centre), Darmstadt, Germany (renamed to DTAG in 1996-05)

=item B<GLO>

Global Navigation Satellite System (GLONASS)

=item B<GPS>

Global Positioning System

=item B<GUM>

Glowny Urzad Miar (Central Office of Measures), Warsaw, Poland (succeeded by PL in 2001-07)

=item B<HKO>

Hong Kong Observatory, Hong Kong, People's Republic of China

=item B<IEN>

Istituto Elettrotecnico Nazionale Galileo Ferraris (Galileo Ferraris National Electrical Engineering Institute), Turin, Italy (renamed to IT in 2006-02)

=item B<IFAG>

Bundesamt fur Kartographie und Geodasie (Federal Agency for Cartography and Geodesy), Fundamental station, Wettzell, Kotzting, Germany

=item B<IGMA>

Instituto Geografico Militar (Military Geographic Institute), Buenos Aires, Argentina (renamed to IGNA in 2009-10)

=item B<IGNA>

Instituto Geografico Nacional (National Geographic Institute), Buenos Aires, Argentina

=item B<INPL>

National Physical Laboratory, Jerusalem, Israel

=item B<INTI>

Instituto Nacional de Tecnologia Industrial (National Industrial Technology Institute), Buenos Aires, Argentina

=item B<IPQ>

Institute Portugues da Qualidade (Portuguese Institute of Quality), Monte de Caparica, Portugal

=item B<IT>

Istituto Nazionale di Ricerca Metrologica (National Institute of Metrological Research), Turin, Italy

=item B<JATC>

Joint Atomic Time Commission, Lintong, People's Republic of China

=item B<JV>

Justervesenet, Norwegian Metrology and Accreditation Service, Kjeller, Norway

=item B<KEBS>

Kenya Bureau of Standards, Nairobi, Kenya

=item B<KIM>

Pusat Penelitian Kalibrasi Instrumentasi Dan Metrologi (Research Centre for Calibration Instrumentation and Metrology), Lembaga Ilmu Pengetahuan Indonesia (Indonesian Institute of Sciences), Serpong-Tangerang, Indonesia

=item B<KRIS>

Korea Research Institute of Standards and Science, Daejeon, Republic of Korea

=item B<KSRI>

Korea Standards Research Institute, Daejeon, Republic of Korea (renamed to KRIS in 1991-10)

=item B<KZ>

Kazakhstan Institute of Metrology, Astana, Kazakhstan

=item B<LDS>

University of Leeds, Leeds, United Kingdom

=item B<LT>

Lithuanian National Metrology Institute, Vilnius, Lithuania

=item B<LV>

Latvijas Nacionalais Metrolojiias Centrs (Latvian National Metrology Centre), Riga, Latvia

=item B<MIKE>

Centre for Metrology and Accreditation, Espoo, Finland

=item B<MKEH>

Magyar Kereskedelmi Engedelyezesi Hivatal (Hungarian Trade Licensing Office), Budapest, Hungary

=item B<MSL>

Measurement Standards Laboratory, Lower Hutt, New Zealand

=item B<NAO>

National Astronomical Observatory, Mizusawa, Japan

=item B<NAOM>

National Astronomical Observatory, Mizusawa, Japan (renamed to NAO in 1997-01)

=item B<NAOT>

National Astronomical Observatory, Tokyo, Japan

=item B<NICT>

National Institute of Information and Communications Technology, Tokyo, Japan

=item B<NIM>

National Institute of Metrology, Beijing, People's Republic of China

=item B<NIMB>

National Institute of Metrology, Bucharest, Romania

=item B<NIMT>

National Institute of Metrology, Pathumthani, Thailand

=item B<NIS>

National Institute for Standards, Cairo, Egypt

=item B<NIST>

National Institute of Standards and Technology, Boulder, Colorado, United States of America

=item B<NMC>

National Centre of Metrology, Sofia, Bulgaria (renamed to BIM in 2007-01)

=item B<NMIJ>

National Metrology Institute of Japan, Tsukuba, Japan

=item B<NML>

National Measurement Laboratory, Sydney, Australia

=item B<NMLS>

National Metrology Laboratory of SIRIM Berhad, Sepang, Malaysia

=item B<NPL>

National Physical Laboratory, Teddington, United Kingdom

=item B<NPLI>

National Physical Laboratory, New Delhi, India

=item B<NRC>

National Research Council of Canada, Ottawa, Canada

=item B<NRL>

United States Naval Research Laboratory, Washington D.C., United States of America

=item B<NRLM>

National Research Laboratory of Metrology, Tsukuba, Japan (renamed to NMIJ in 2001-12)

=item B<NTSC>

National Time Service Centre of China, Lintong, People's Republic of China

=item B<OMH>

Orszagos Meresugyi Hivatal (National Office of Measures), Budapest, Hungary (renamed to MKEH in 2007-01)

=item B<ONBA>

Observatorio Naval (Naval Observatory), Buenos Aires, Argentina

=item B<ONRJ>

Observatorio Nacional (National Observatory), Rio de Janeiro, Brazil

=item B<OP>

Observatoire de Paris (Paris Observatory), Paris, France

=item B<ORB>

Observatoire Royal de Belgique (Royal Observatory of Belgium), Brussels, Belgium

=item B<PEL>

Physics and Engineering Laboratory, Lower Hutt, New Zealand (renamed to MSL in 1992)

=item B<PKNM>

Polski Komitet Normalizacji (Polish Committee for Standardization), Warsaw, Poland (renamed to GUM in 1994)

=item B<PL>

consortium of laboratories in Poland

=item B<PSB>

National Measurement Centre, Singapore Productivity and Standards Board, Singapore (renamed to SG in 2002-03)

=item B<PTB>

Physikalisch-Technische Bundesanstalt (Federal Standards Laboratory), Braunschweig, Germany

=item B<RC>

[no information available]

=item B<ROA>

Real Instituto y Observatorio de la Armada (Royal Spanish Naval Observatory), San Fernando, Spain

=item B<SCL>

Standards and Calibration Laboratory, Hong Kong, People's Republic of China

=item B<SG>

Standards Productivity and Innovation Board, Singapore

=item B<SIQ>

Slovenski institut za kakovost in meroslovje (Slovenian Institute of Quality and Metrology), Ljubljana, Slovenia

=item B<SMD>

Metrology Division of the Quality and Safety Department - Scientific Metrology, Brussels, Belgium

=item B<SMU>

Slovensky metrologicky Ustav (Slovak Institute of Metrology), Bratislava, Slovakia

=item B<SNT>

[name and location uncertain, probably Sistema Nazionale di Taratura, Italy]

=item B<SO>

[name missing], Shanghai, People's Republic of China

=item B<SP>

Sveriges Provnings- och Forskningsinstitut (Swedish National Testing and Research Institute), Boras, Sweden

=item B<STA>

[name and location missing] ([possibly renamed to SNT in 1991])

=item B<SU>

Institute of Metrology for Time and Space (IMVP), NPO "VNIIFTRI" Mendeleevo, Moscow Region, Russia

=item B<TAO>

[name and location uncertain, probably Telecommunications Advancement Organization of Japan] ([possibly succeeded by NAOT in 1992])

=item B<TCC>

Transportable Integrated Geodetic Observatory (TIGO), Concepcion, Chile

=item B<TL>

Telecommunication Laboratories, Chung-Li, Taiwan

=item B<TP>

Institute of Radio Engineering and Electronics, Academy of Sciences of the Czech Republic, Prague, Czech Republic

=item B<TUG>

Technischen Universitat Graz (Technical University of Graz), Graz, Austria

=item B<UA>

National Science Center Institute of Metrology, Kharkov, Ukraine

=item B<UME>

Ulusai Metroloji Enstitusu (National Metrology Institute), Marmara Research Centre, Gebze Kocaeli, Turkey

=item B<USNO>

United States Naval Observatory, Washington D.C., United States of America

=item B<VMI>

Vietnam Metrology Institute, Ha Noi, Vietnam

=item B<VSL>

Nederlands Meetinstituut Van Swinden Laboratorium, Delft, Netherlands

=item B<YUZM>

[no information available]

=item B<ZA>

Council for Scientific and Industrial Research, Pretoria, South Africa

=item B<ZIPE>

[no information available]

=item B<ZMDM>

Zavod za mere i dragocene metale (Bureau of Measures and Precious Metals), Belgrade, Serbia (renamed to DMDM in 2009-10)

=back

=head1 BUGS

Some information is missing from the above list.  If you can fill in
any of the blanks, please mail <zefram@fysh.org>.

=head1 SEE ALSO

L<Time::TAI>,
L<Time::TT>

=head1 AUTHOR

This document is derived from the BIPM-maintained abbreviation list
at L<ftp://ftp2.bipm.fr/pub/tai/publication/acronyms.txt>.  Andrew Main
(Zefram) <zefram@fysh.org> added information on historical abbreviations,
and made the presentation more consistent.

=head1 COPYRIGHT

It is questionable whether this document is copyrightable, due to its
essentially functional nature as a collection of raw data.  If there is
any copyright on the file that this is based on, it is presumably held
by the BIPM.  Andrew Main does not claim copyright on any part of this
document, and hereby places into the public domain any copyrightable
aspect of it over which he would otherwise hold the copyright.

=head1 LICENSE

No license is required to do anything with public domain materials.
To the extent that the BIPM holds copyright on the file that this is
based on, reproducing certain aspects of it here is probably fair use.