Contents.
      planet: 7 - Uranus
  satellites: 16 - U16-Caliban  :3,
              17 - U17-Sycorax  :1,
              18 - U18-Prospero :3,
              19 - U19-Prospero :3,
              20 - U20-Stephano :1,
              21 - U21-         :2
total number: 13
        type: absolute
       dates: 2003-2003
 observatory: 568 - Mauna Kea

Reference.
              MPC Communic.  6 Aug 2003
              MPC Communic. 22 Sep 2003

Informations.
         relative to: absolute
     reference frame: astrometric
     centre of frame: topocentre
    epoch of equinox: J2000
          time scale: UTC
           reduction: no information
         coordinates: absolute
    diff. refraction: no information
            receptor: CCD
           telescope: 3.6-m Canada-France-Hawaii telescope,
                      8.3-m Subaru telescope
           observers: S. S. Sheppard, D. C. Jewitt, J. Kleyna, 
                      Measurer S. S. Sheppard.
 data included in standard data file: no

Comments.
     U18: Magnitude 23.2
     U19: Magnitude 23.5
     U20: Magnitude 24.3
          Filter  R

Format.
  1. Number of satellite (N sat)
  2. Year   of the moment of observation
  3. Month  of the moment of observation
  4. Day    of the moment of observation with decimals
  5. Hour   of right ascension (alpha, h)
  6. Minute of right ascension (alpha, m)
  7. Second of right ascension (alpha, s)
  8. Degree of declination (delta, deg)
  9. Minute of declination (delta, '  )
 10. Second of declination (delta, '' )

-----------------------------------------------
 N  Year      UT       alpha         delta
sat.  month day
       with decimals  h  m  s      deg   '  ''
-----------------------------------------------