Tonight I could do some testing of Custom Track rates in Indi EQMOD. Even if I can't get guiding with relative speed when hunting comets it had been good to be able to set Custom Track Rates.
The comet C/2022 E3 ZTF I got (CdC) for the date 2023-01-01 to be =
dRA -0.74arcsec/hour and set Custom RA Track rate to 15.040861444 arcsec/sec
dDEC +2' 10.8"/hour and set Custom DEC Track rate to 0.036333 arcsec/sec
But Indi doesn't accept the DEC Custom Rate and I get these error messages when testing different Custom Rates.
The correction must be bigger than 0.8 arcsec/sec to be accepted. Yes it's a small correction, but when follow the comet for hours it does matter if I can use Custom Tracks.
ps.
Is it correct to ask this question here at Astroberry embedded Indi or should I ask at Indi / Mount ?