ILRS Analysis Centers

ILRS Analysis Centers fall into three categories: Analysis Centers, Lunar Analysis Centers, and Associate Analysis Centers.

The Analysis Centers (ACs) access and process tracking data from one or more data centers for the purpose of quality control purposes or for the generation of ILRS products. The ACs are committed to deliver the products routinely, without interruption, at an adopted frequency and with a time lag approved by the Governing Board to meet ILRS requirements. The products are generated using designated standards and delivered to the Global Data Centers, to the IERS (as per bilateral agreements), and to other interested bodies. At a minimum, the Analysis Centers must process the global LAGEOS-1 and LAGEOS-2 data sets and are encouraged to include other geodetic satellites in their solutions. It is anticipated that list of satellites to be included in routine analysis by the ACs can be extended if requested by the Analysis Standing Committee and/or the ILRS Central Bureau.

The ACs provide, at a minimum, daily-resolution Earth orientation parameters, weekly-averaged station coordinates and satellite orbits, on a daily basis, as well as other products, required by the IERS. The ACs also provide a second level of quality assurance on the global data set by monitoring individual station range and timing systematic errors via the fitted orbits (primarily based on the LAGEOS-1 and LAGEOS-2 satellites).

Lunar Analysis Centers process normal point data from the LLR stations and generate a variety of scientific products including precise lunar ephemerides, librations, and orientation parameters that provide insights into the composition and internal makeup of the Moon, its interaction with Earth, tests of General Relativity, and solar system ties to the ICRF.

Associate Analysis Centers are organizations that produce special products, such as satellite predictions, time bias information, precise orbits for special-purpose satellites, station coordinates and velocities within a certain geographic region, or scientific data products of a mission-specific nature. Associate Analysis Centers are encouraged to perform additional quality control functions through the direct comparison of individual Analysis Center products and/or the creation of "combined" solutions, perhaps in combination with data from other space geodetic techniques (e.g., VLBI, GPS, GLONASS, Galileo, Compass/BeiDou, DORIS, etc.), in support of the ITRF or precise orbit determination. Organizations that desire to eventually become Analysis Centers may also be designated as Associate Analysis Centers by the Governing Board until they are fully accredited Analysis Centers.

(c.f. ILRS Terms of Reference sec 2.4.1, 2.4.2, and 2.4.3)

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Analysis Centers (ACs)

Center Code Contact E-mail
Bundesamt für Kartographie und Geodäesie (BKG) Germany (log) bkg Dr. Daniela Thaller
Dr. Daniel Koenig
Deutsches Geodätisches Forschungsinstitut (DGFI) Germany (log) (QC log) dgfi Mathis Blossfeld
ESA/ESOC, Germany esa Dr. Tim Springer
Helmholtz Centre Potsdam German Research Centre for Geosciences (GFZ), Germany (log) gfz Dr. Rolf Koenig
ILRS primary combination solution ilrsa Dr. Giuseppe Bianco
Dr. Vincenza Luceri
ILRS backup combination solution ilrsb Dr. Erricos Pavlis
Magda Kuzmicz Cieslak
Italian Space Agency, Centro di Geodesia Spaziale "G. Colombo" (ASI/CGS), Italy (log) (QC log) asi Dr. Giuseppe Bianco
Dr. Vincenza Luceri
Joint Center for Earth System Technology/Goddard Space Flight Center (JCET/GSFC) Greenbelt, Maryland, USA (log) (QC log) jcet Dr. Erricos Pavlis
NERC Space Geodesy Facility (NSGF) formely RGO Satellite Laser Ranging Group, United Kingdom (log) ngsf Dr. Graham Appleby


Lunar Analysis Centers (Lunar ACs)

Center Contact E-mail
Goddard Lunar Data Analysis Center (GLD AC), Greenbelt, MD, USA (log) Dr. Vishnu Viswanathan
Forschungseinrichting SatellitenGeodasie/Institut fuer Erdmessung (FESG/IFE) Germany Dr. Ing. Jurgen Mueller
Istituto Naz. di Fisica Nucleare - Laboratori Naz. di Frascati(INFN-LNF), Italy Dr. Simone Dell'Agnello
Jet Propulsion Laboratory, Pasadena, California, USA Mr. James Williams
Paris Observatory Lunar Analysis Center, France Dr. Sebastien Bouquillon
Russian Academy of Sciences/Institute of Applied Astronomy (RAS/IAA) Dr. Alexander Ipatov


Associate Analysis Centers (AACs)

Center Contact E-mail
Austrian Academy of Sciences (log) Sandro Krauss
Center for Orbit Determination in Europe (CODE) Switzerland (QC log) Rolf Dach
Center for Space Research (CSR), University of Texas, Austin, Texas, USA (log) Dr. John Ries
Central Laboratory for Geodesy, Bulgaria Ivan Georgiev
Delft Institute for Earth Oriented Space Research (DEOS) The Netherlands Ron Noomen
Groupe de Recherche en Géodésie Spatiale (GRGS) France (log) Dr. Florent Deleflie
Hitotsubashi University, Japan (QC log) Toshimichi Otsubo
Institute of Applied Astronomy, St. Petersburg, Russia Dr. Iskander Gayazov
Institute of Astronomy, Moscow, Russia Dr. Sergey Kuzin
Institute for Space Astrophysics and Planetology (IAPS)/National Institute for Astrophysics (INAF) and INFN-Roma2 David M. Lucchesi
Instituto Geográfico Nacional, Observatorio de Yebes (IGN Yebes) Dr. José Rodríguez
Korea Astronomy and Space Science Institute (KASI) South Korea (log) Dr. Eunseo Park
Main Astronomical Observatory of the National Academy of Sciences of Ukraine (GAOUA) Ukraine Prof. Yaroslav Yatskiv
Newcastle University, United Kingdom Dr. Philip Moore
Norwegian Mapping Authority (Kartverket) Dr. Ingrid Fausk
Pulkovo EOP and Reference Systems Analysis Center (PERSAC) (log) Dr. Zinovy Malkin
Pulkovo Observatory Dr. Zinovy Malkin
RLRN Data Collection and Analysis Center, Moscow Oblast, Russia (RNAC) Evgeny Titov
Russian Metrological Institute of Technical Physics and Radio Engineering (VNIIFTRI) Dr. Sergey Pasynok
Igor Ignatenko
Russian Mission Control Centre, Moscow, Russia (QC log) Dr. Vladimir Glotov
Shanghai Astronomical Observatory (SHAO), China (QC log) Mr. Hunag Cheng
Tsukuba Space Center/JAXA, Japan Shinichi Nakamura
Wroclaw University of Enviromental and Life Sciences (WUELS), Institute of Geodesy and Geoinformatics (IGIG) Krzysztof Sosnica


Former AC/AAC Centers

Center Type Contact E-mail
Geoscience Australia (formerly Australian Surveying and Land Information Group, AUSLIG) Australia (log) AC Dr. Ramesh Govind
Groupe de Recherche en Géodésie Spatiale (GRGS) France (log) AC Dr. Florent Deleflie
National Institute of Information and Communications Technology AAC Tadahiro Gotoh