Adding some assert and clean up
Adding some assert and clean up

fmin2958/POCS,Guokr1991/POCS,fmin2958/POCS,AstroHuntsman/POCS,panoptes/POCS,Guokr1991/POCS,AstroHuntsman/POCS,panoptes/POCS,fmin2958/POCS,Guokr1991/POCS,joshwalawender/POCS,AstroHuntsman/POCS,panoptes/POCS,AstroHuntsman/POCS,joshwalawender/POCS,joshwalawender/POCS,panoptes/POCS,Guokr1991/POCS