Comparison of the observational data on the LOS velocities in the Galactic Standard of Rest of the BHB stars (diamonds and stars) and predictions from the Dierickx & Loeb (2017) (light grey points) and Vasiliev et al. (2021) without (dark grey points) and with LMC (orange points) models in the same angular range across the stream. Left panel: big diamond markers indicate LOS velocities in Galactic Standard of Rest of BHB stars estimated with RVSPECFIT from the FORS2 spectra. Right panel: stars represent the same velocities with an applied shift as reported in Figs. 3 and C.1. The plot also shows the position of globular cluster NGC 2419 (filled circle) in this projection of phase space. The LOS velocity of NGC 2419 comes from Vasiliev & Baumgardt (2021) also assuming the right ascension and declination provided in the Vasiliev & Baumgardt (2021) catalogue, while we use the heliocentric distance of NGC 2419 from Baumgardt & Vasiliev (2021).