DOGS-RI: new VLBI analysis software at DGFI-TUM

OCCAM has served as the main VLBI software at DGFI-TUM for more than 20 years. For more flexibility and compatibility, DGFI-TUM started to develop its own VLBI software called DOGS-RI. DOGSRI is a software library of the DGFI Orbit and Geodetic Parameter Estimation Software (DOGS) package which also includes the software libraries for SLR analysis and intra-/inter-technique combinations. That will give a possibility to keep consistency between software libraries sharing common modules. To validate DOGSRI, we conducted internal comparisons with the OCCAM solutions and external comparisons with the IVS combined solution. In this paper, we introduce the structure and features of DOGS-RI and some validation results. We also discuss future plans for the software and for the VLBI analysis at DGFI-TUM.