# changing tracking to "Mrk 421" Wobble 2 > > moving telescope to wobble position 2 >...waiting for drivectrl to be ready to move .s DRIVE_CONTROL 5 > DRIVE: ARMED .w 5000 DRIVE_CONTROL/TRACK_SOURCE 0.6 -90 "Mrk 421" >...sent tracking command for Mrk 421 Wobble 2