Data for targets are put in /data directory. MCMC Results will be stored in current path. hip2.dat: all the hipparcos absolute astrometry JavaTool_2014.zip: all the hipparcos Intermediate Astrometric Data (IAD) get_GaiaDR23_astrometry.py: get *hip2.abs and *hg123 files RVAst_mcmc_v18.py: the source code to perform joint fitting of radial velocity (RV), eclipse timing variation(ETV) and Hipparcos-Gaia astrometry data. The detailed methodology are presented in Feng et.al (2023) and Xiao et.al (2024). *_posterior_*.txt: the posterior distribution of fitting parameters generated by the code. The basic fitting parameters include the orbital period, RV semi-amplitude, eccentricity, argument of periastron of stellar reflex motion, orbital inclination, longitude of ascending node, mean anomaly at the minimum epoch of RV data and five astrometric offsets of barycenter relative to GDR3. *png/pdf: resulting figures. *vels/dat: RV data from different instruments *gost.csv: the synthetic Gaia epoch data generated from Gaia Observation Forecast Tool *hip2.abs: Hipparcos Intermediate Astrometric Data (IAD) *hg123: Astrometric measurements of HIpparcos and Gaia DR2 & DR3 *eb.tim1: ETV data 1. Gaia BH3: a) RV+GDR4 fitting. ######## Global configuration #######target = 'GaiaBH3'nplanet = 1RV_Enable = TrueTTV_Enable = False GDR4_Enable = TrueHGAst_Enable = False b) RV+GDR23 fitting. ######## Global configuration ####### target = 'GaiaBH3'nplanet = 1RV_Enable = TrueTTV_Enable = False GDR4_Enable = FalseHGAst_Enable = True 2. V pup: target = 'HIP38957'nplanet = 1RV_Enable = FalseTTV_Enable = True GDR4_Enable = FalseHGAst_Enable = True Please feel free to contact us (gyxiao_tdli@sjtu.edu.cn or ffeng@sjtu.edu.cn) if you have any questions about the use of this script.