The manuscripts of these texts exist in slightly different versions, present Brhaspati's motion in the skies, but vary in their data, suggesting that the text were open and revised over their lives. The texts slightly disagree in their data, in their measurements of Brhaspati's revolutions, apogee, epicycles, nodal longitudes, orbital inclination, and other parameters. For example, both "Khandakhadyaka" and "Surya Siddhanta" of Varaha state that Brhaspati completes 364,220 revolutions every 4,320,000 earth years, an Epicycle of Apsis as 32 degrees, and had an apogee (aphelia) of 160 degrees in 499 CE; while another manuscript of "Surya Siddhanta" accepts the revolutions to be 364,220, but revises the apogee to 171 degrees and 16 seconds and the Epicycle slightly.