ESA provides a high accuracy orbit in sp3 format, which forms the basis for the generation of the simulated VLBI observations: https://gssc.esa.int/webftp/login.html
| GNSS | SLR | DORIS | VLBI |
|---|---|---|---|
| simulated data | simulated data | simulated data | simulated data |
The data described below can be found in the TU Wien Cloud.
Before using the data for a publication, please contact the authors of the simulated observations.
Orbit Data
The reference orbit has been provided by ESA and can be accessed here.
Pilot Project (G1)/_orbit_data/tle_data/ - TLE files for the period August 3–10, 2025 (provided by DLR (Peter Steigenberger))
Simulated DORIS Data
Pilot Project (G1)/doris/ - simulated DORIS-Data (provided by CNES)
Simulated GNSS Data
Pilot Project (G1)/gnss/ - simulated GNSS-Data (provided by DLR)
Simulated SLR Data
Pilot Project (G1)/slr/ - simulated SLR-Data (provided by DLR (Oliver Montenbruck))
Simulated VLBI Data
TU Wien provides VLBI schedules that include observations of both quasars and the satellite Genesis. The schedules are based on a 16-station global network and each schedule has a duration of 24 hours. About 14% of the VLBI scans are to the satellite. In total, eight such 24-hour schedules are provided, covering a full week starting on August 3, 2025. The schedules were generated using VieSched++ and they perform the basis for the generation of the simulated observations with VieVS-VLBI. Currently, the schedules with the observations are provided with NGS-files.
The dataset is organized as follows Pilot Project (G1)/vlbi/::
- ngs_data_v1/ - contains the NGS files with the simulated VLBI observations (by TU Wien)
- description_G1.pdf: provides a detailed description of the dataset and its structure.
- input_protocol.txt: contains the modelling settings used in VieVS-VLBI.
- Network.png: network used in the study.