Glitch Δv (top) and Δv̇ (bottom) as functions of time. Large and small circles denote NICER and RXTE values, respectively, with the latter taken from Table 2 of Antonopoulou et al. (2018). Errors in bottom panel are 1σ uncertainty, while errors are not shown in top panel because they are smaller than the circles. Vertical dotted lines denote the start (MJD 57722, 2016 November 30) and end (MJD 57990, 2017 August 25) of the second observing run (O2) and start (MJD 58574, 2019 April 1) and end (MJD 58935, 2020 March 27) of the third observing run (O3) of LIGO/Virgo.