[Joshua Bunn (Joshua)]

Originally Posted by marc4darkskies

No. The guide rate is the speed of the correction that is applied to the telescope's position expressed as a fraction of the sidereal rate. The default rate for SB mounts 0.5. I.e. on the RA axis this means that the tracking rate will change to either 0.5 or 1.5 times the sidereal rate depending on whether the tracking error is west or east. On the Dec axis corrections will be +-0.5 times the sidereal rate. Aggressiveness is the proportion of the computed correction that is applied. I.e. a 1 second computed correction will be only a 0.6 second actual correction if aggressiveness is set at 6 (10 = full correction applied) ..... I think! .

Thankyou Marcus