coord-treats the first keyword as a Right Ascension and converts HH:MM:SS --> decimal degrees. The second keyword is treated as Declination and converts DD:MM:SS --> decimal degrees. All other fields pass through unscathed.
mod= converts the number to its positive modulo.
rollover converts increasing hours to total hours by adding 24 each time there is a backstep.
echo 12:12:33 44:44:44 4.5 gamma globulin | nobaby 12.209167 44.745556 4.5 gamma globulin bright ra=14 dec=23 | nobaby coord ra=209.6620 dec=21.6959 equinox=2000.000 epoch=2020.283 name=5255 cat=yale mode=astrometric mag=5.76 dist=1.34