Screenshot of detector status dashboard, showing LIGO Livingston currently observing, and a plot of its detector range over the last few minutes (about 138 Mpc, with fluctuations of about 1 Mpc)
https://cdn.masto.host/astrodonsocial/media_attachments/files/110/424/314/111/685/846/original/6f452396da17e6c9.png