In situ measurements given in day-of-year (doy) time series around 2019 March 12 (doy 71). Top-to-bottom panels: (1) magnetic field strength (black) and its components x, y, z in Geocentric solar ecliptic (GSE) colored red, blue, and green, respectively; (2) plasma density (black), temperature (red) and expected temperature (blue); (3) plasma flow speed (black) and beta (gray); (4) Dst index. The expected temperature was calculated according to Lopez (1987) and Richardson & Cane (1995). The SFR is highlighted red, with dashed lines outlining its borders. The solid line marks the start of what appears to be a pile-up region ahead of the SFR (for details see main text).