Contents.
      planet: 7 - Uranus
  satellites: U1-Ariel     : 3485,
              U2-Umbriel   : 3666,
              U3-Titania   : 4442,
              U4-Oberon    : 4456,
              U5-Miranda   : 1680
total number: 17729
        type: absolute
       dates: 1982-2011
 observatory: 874 - Itajuba (Pico dos Dias Observatory)

Reference.
   Camargo J. et al. (2022)
   The five largest satellites of Uranus: Astrometric observations spread over 29 years at the Pico dos Dias Observatory.
   Planetary and Space Science, Volume 210, January 2022, 105376.
   2022P&SS__21005376C

Informations.
         relative to: absolute
     reference frame: astrometric
     centre of frame: topocenter
    epoch of equinox: J2000
          time scale: UTC
           reduction: Gaia EDR3
         coordinates: absolute
    diff. refraction: no information
            receptor: photographic, CCD
           telescope: 0.6m Zeiss telescope
                      0.6m Boller&Chivens telescope
                      1.6m Perkin-Elmer telescope
           observers: Camargo, J. I. B.; Veiga, C. H.; Vieira-Martins, R.; Assafin, M.
 data included in standard data file: no

Comments.
  1. These positions are the result of reanalysis of the data presented in the data units um0124.html and um0125.
  2. From 1982 to 1987, positions were obtained from photographic plates. From 1989 to 2011, CCDs were used.

Format.
  1. Index of satellite (s: 1 - Ariel, 2 - Umbriel, etc.)
  2. Julian date of observation (JD)
  3. Hour    of right ascension (alpha, h)
  4. Minutes of right ascension (alpha, m)
  5. Seconds of right ascension with decimals (alpha, s)
  6. Degrees of declination (delta, deg)
  7. Minutes of declination (delta, '  )
  8. Seconds of declination with decimals (delta, '' )
  9. Differential right ascension (X, arcsec)
 10. Differential declination (Y, arcsec)

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s  JD                 alpha           delta          X        Y
                     h  m  s       deg '  ''       arcsec   arcsec
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