SLR and GPS Spatial Techniques in ITRF. Argentine Results

ELOY ACTIS; RICARDO PODESTA; ANA MARIA PACHECO; HERNÁN ALVIS ROJAS; ZHIQIANG YIN; JINZENG LI; YANBEN HAN; WEIDONG LIU; RUI WANG; DONGPIN HUANG; RAUL MARQUEZ; SONIA ADARVEZ; JÉSICA RODRÍGUEZ; FLORES, M.; DIEGO BRIZUELA

Beijing

Congreso; Asamblea General XXVIII de la Union Astronomica Internacional; 2012

Unión Astronómica Internacional (IAU)

Along the late 30 years spatial geodetic techniques enables us to measure horizontal and vertical deformations of Earth surface with a very high precision. Performing this task we made Satellite Laser Ranging (SLR) and Global Positioning System (GPS) observations in South America ILRS 7406 Station placed at Observatorio Astronómico Félix Aguilar (OAFA) in San Juan, Argentina, accomplishing a cooperation agreement between Universidad Nacional de San Juan (UNSJ) and National Astronomical Observatories of China - Chinese Academy of Sciences (NAOC-CAS).Trough LAGEOS Satellite observations we obtain rectangular coordinates of San Juan ILRS Station in the Terrestrial Reference Frame (ITRF), standing out that Argentine Station data were included in the late arrangements ITRF 2008 given by International Earth Rotation and Reference System Service (IERS).Spatial and temporary variations of the epoch 2010-2011 were evaluated finding out remarkable displacements, related with seismic events on the region. We confirm these deformations by means of GPS determinations referred to permanent GPS stations placed near the SLR Station.