> changing tracking to "Mrk 421" Wobble 2

>...waiting for drivectrl to be ready to move
.s DRIVE_CONTROL 5 
> DRIVE: ARMED
.w 2000

DRIVE_CONTROL/TRACK_SOURCE 0.6 -90 "Mrk 421" 
>...sent tracking command for MRK 421 Wobble 2