Computer Ephemeris. Ephemeris for physical observations of the planets. Explanations.

light time (minutes of time),
magnitude,
apparent diameter (seconds of arc) 'diame' - equatorial diameter, 'diamp' - polar,
position angle of axis of planetary rotation (degrees) - 'P',
planetocentric right ascension + 180 and declination of the Earth (degrees) - A+, D+,
planetocentric right ascension + 180 and declination of the Sun (degrees) - A., D.,
illumanated part of the disk - k,
phase angle (degrees) - F,
luminocity - L,
defect of illumination - q,
position angle of disk point with minimal illumination (degrees),
longitude of central meridian of the disk (degrees) - 'merid1' - system I and so...
phase correction (degrees).