Analysis and combination centers
Analysis of the SIRGAS-CON network
The SIRGAS-CON network is weekly processed; station positions are daily computed, and the seven individual daily solutions corresponding to a GPS week are combined in one weekly solution. The SIRGAS-CON stations are classified in a core network (SIRGAS-C), with a continental coverage, and several densification networks, which correspond to the national reference networks (SIRGAS-N). The SIRGAS-C core network is processed by the IGS RNAAC SIRGAS. The SIRGAS-N national networks are computed by the SIRGAS Local Processing Centres. The loosely constrained weekly solutions individually calculated for the national networks are combined with the loosely constrained weekly solution calculated for the SIRGAS-C core network to obtain compatible station positions and velocities in a continental level. The SIRGAS coordinates are at ftp.sirgas.org available. This server is maintained and managed by the IGS RNAAC SIRGAS. Data flow and relationship between Operational Centres, National Data Centres, Processing Centres, and Combination Centres is coordinated by the SIRGAS-WGI (Reference System).
SIRGAS local processing centres
The Local Processing Centres perform weekly computations of a specified set of SIRGAS stations, guarantying that each station is included in three individual solutions. Their solutions are combined with the core network to provide the final SIRGAS products.
At present, the SIRGAS local processing centres are:
Argentina
IGN-Ar: Instituto Geográfico Nacional
– ID: GNA
RESPONSABLE:
Micaela Carbonetti (mcarbonetti@ign.gob.ar)
– Team:
- Manuela Angulo (líder@ign.gob.ar)
Bolivia
Instituto Geográfico Militar de Bolivia
– ID: BOL
RESPONSABLE:
Cap, DIM. Hernan José Guerra Trigo.
(trigo.guerra.hernan@gmail.com)
– Team:
Cap, DIM. Hernan José Guerra Trigo.
(trigo.guerra.hernan@gmail.com)
Brasil
IBGE: Instituto Brasileiro de Geografia e Estatistica
– ID: IBG
RESPONSABLE:
Alberto Luis da Silva (alberto.luis @ ibge.gov.br)
– Team:
- Marco Aurelio de Almeida Lima (marco.almeida @ ibge.gov.br)
- Guiderlan Mantovani (guiderlan.mantovani @ ibge.gov.br)
Chile
USC: Universidad de Santiago de Chile: Centro de Procesamiento y Análisis Geodésico USC
– ID: USC
RESPONSABLE:
José Antonio Tarrío Mosquera (jose.tarrio@usach.cl)
– Team:
- Catalina Cáceres (catalina.caceres @ usach.cl)
- Marcelo Caverlotti (marcelo.caverlotti @ usach.cl)
- Fernando Isla (fernando.isla @ usach.cl)
- Valeria Vásquez (valeria.vasquez.t @ usach.cl)
- José Luis Borcosque Díaz (jose.borcosque @ usach.cl)
Chile
IGM-Cl: Instituto Geográfico Militar
– ID: CHL
RESPONSABLE:
Ángel Zapata Arias(geodesico@igm.cl)
– Team:
- Sergio Rozas Bornes (sirgas @ igm.cl)
- Ignacio Parada Pichuante (sirgaschile @ igm.cl)
- Claudio Reyes Norambuena (sirgaschile @ igm.cl)
- Germán Aguilera Reyes (calculo @ igm.cl)
Colombia
IGAC: Instituto Geográfico Agustín Codazzi
– ID: IGA
RESPONSABLE:
Mónica Liliana López Martinez (monica.lopez@igac.gov.co)
– Team:
- Óscar Rodríguez (orodrig@igac.gov.co)
Costa Rica
Instituto Geográfico Nacional
– ID: CRI
RESPONSABLE:
Álvaro Álvarez Calderón (aalvarezc@rnp.go.cr)
– Team:
- Carlos Gómez Salazar (cgomezs@rnp.go.cr)
Costa Rica
Universidad de Costa Rica
– ID: UCR
RESPONSABLE:
Sr. Mauricio Varela Sánchez (mauricio.varelasanchez@ucr.ac.cr)
– Team:
- Sr. Mauricio Varela Sánchez
(mauricio.varelasanchez@ucr.ac.cr)
Ecuador
CEPGE: Centro de Procesamiento de datos GNSS del Ecuador, Instituto Geográfico Militar
– ID: ECU
RESPONSABLE:
Karina Estefanía Rosero Escaleras (karina.rosero@geograficomilitar.gob.ec)
– Team:
- Hernán Patricio Portilla Pullupaxi (hernan.portilla@geograficomilitar.gob.ec)
- Paul Fabricio Mejía Quimbiulco (paul.mejia@geograficomilitar.gob.ec)
México
INEGI: Instituto Nacional de Estadística y Geografía
– ID: INE
RESPONSABLE:
Guido González (guido.gonzalez@inegi.org.mx)
– Team:
- Guillermo Gasca (guillermo.gasca @ inegi.org.mx)
- Gabriel Gaytán (gabriel.gaytan @ inegi.org.mx)
Perú
IGN-Pe: Instituto Geográfico Nacional
– ID: PER
RESPONSABLE:
Tony Teofilo Aparco Lara (tony32181 @ gmail.com)
– Team:
- Allison Briguitte Paz Richarte (11130100 @ unmsm.edu.pe)
- Edita Caceli Talledo Flores (edita.talledo @ gmail.com)
- Franklin Maylle Gamarra (fmaylleg@ign.gob.pe, franco.unmsm@gmail.com)
- Jhon Kenny Artica Medina (jhhon2018 @ gmail.com)
Uruguay
IGM-Uy: Instituto Geográfico Militar
– ID: URY
RESPONSABLE:
Julio Teixeira
(julio.teixeira @ igm.gub.uy)
– Team:
- Anibal Pintos (anibal.pintos@igm.gub.uy), IGM, Uruguay
- María Belén Gándara (maria.gandara @ igm.gub.uy)
- Laura Camacho (laura.camacho @ igm.gub.uy)
- Santiago Chiruzzo (santiago.chiruzzo @ igm.gub.uy)
- Facundo Perdomo (facundo.perdomo@igm.gub.uy), IGM, Uruguay
- Alejandro Nardarcioni (alejandro.nardarcioni@igm.gub.uy), IGM, Uruguay
IGS RNAAC SIRGAS centre
The IGS Regional Network Associate Analysis Centre for SIRGAS (IGS RNAAC SIRGAS) usually computed the entire SIRGAS Network (from June 1996 to August 2008) in one block. After the establishment of the SIRGAS Local Processing Centres, the IGS RNAAC SIRGAS is now responsible for the weekly computation of the SIRGAS-C core network and for its combination with the SIRGAS-N national networks. The IGS RNAAC SIRGAS is operated by the
Deutsches Geodätisches Forschungsinstitut der Technischen Universität München, DGFI-TUM (Germany)
Responsible: Laura Sánchez (lm.sanchez @ tum.de)
Combination centres
The Combination Centres are responsible for combining the loosely constrained weekly solutions for the SIRGAS-N national networks with the corresponding solution for the SIRGAS-C core network. At present, they are:
Brazil
Instituto Brasileiro de Geografia e Estatistica, IBGE
Responsible:
- Nilton Ribas Júnior (nilton.junior@ibge.gov.br)
- Mario Alexandre de Abreu (mario.abreu@ibge.gov.br)
Germany
Deutsches Geodätisches Forschungsinstitut der Technischen Universität München, DGFI-TUM
Responsible:
- Laura Sánchez (lm.sanchez@tum.de)
Experimental processing centres
Experimental processing centres are candidates to become SIRGAS Local Processing Centres. During a specified time period, they align their processing strategies to those required by SIRGAS and demonstrate their capacity for timely and continuously delivery of weekly solutions. Once they satisfy these requirements, they are appointed as official processing centres. During the test period (usually one year), they process a set of SIRGAS reference stations, but their solutions are not included in the computation of the final SIRGAS products.