Contents.
      planet: 6 - Saturn
  satellites: S19 - Ymir:       5,
              S20 - Paaliaq:  103,
              S21 - Tarvos:    21,
              S22 - Ijiraq:    38,
              S23 - Suttungr:  13,
              S24 - Kiviuq:    94,
              S25 - Mundilfari: 7,
              S26 - Albiorix:  31,
              S27 - Skathi:    12,
              S28 - Erriapus:  75,
              S29 - Siarnaq:   45,
              S30 - Thrymr:    35,
              S37 - Bebhionn:  32,
              S38 - Bergelmir:  3,
              S39 - Bestla:    15,
              S43 - Hati:      27,
              S45 - Kari:      12,
              S46 - Loge:       3,
              S47 - Skoll:      7,
              S52 - Tarqeq:    19
total number: 597
        type: absolute
       dates: 2008-2017
 observatory: Cassini space probe

Reference
   Jacobson, R. A.; Brozović, M.; Mastrodemos, N.; Riedel, J. E.; Sheppard, S. S. (2022)
   Ephemerides of the Irregular Saturnian Satellites from Earth-based Astrometry and Cassini Imaging
   The Astronomical Journal, Volume 164, Issue 6, article id. 240, 10 pp.
   2022AJ____164__240J

Informations.
         relative to: absolute
     reference frame: astrometric
     centre of frame: Cassini space probe
    epoch of equinox: ICRF
          time scale: UTC
           reduction: no data
         coordinates: absolute
    diff. refraction: 
            receptor: CCD
           telescope: Cassini ISS Narrow Angle Camera (NAC)
           observers: Cassini space probe
 data included in standard data file: no

Comments.
         
Format.
   1. Index of the satellite, N (19 - Ymir, 20 - Paaliaq, etc.)
   2. Image identifier (Image)
   3. Year of the UTC observation date
   4. Month of the UTC observation date
   5. Day of the UTC observation date
   6. Hour of the UTC observation date
   7. Minutes of the UTC observation date
   8. Seconds of the UTC observation date (with decimals)
   9. Satellite sample position on image (sample, pixels)
  10. Satellite's line position on image (line, pixels)
  11. Uncertainty on Sample (e_S, pixels)
  12. Uncertainty on Line (e_L, pixels)
  13. Right ascension of the camera's pointing vector orientation (RAc, degrees)
  14. Declination of the camera's pointing vector orientation (DEc, degrees)
  15. The camera's twist angle (twist, degrees)
  16. Right ascension of the satellite (RA, degrees)
  17. Uncertainty in RA (e_RA, deg)
  18. Declination of the satellite (DE, degrees)
  15. Uncertainty in DE (e_DE, deg)

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N  Image       Year   Day   Time     sample  line    e_S   e_L   RAc     DEc     twist   RA      e_RA  DE      e_DE
                 Month    h  m  s     pix    pix     pix   pix   deg     deg      deg    deg     deg   deg     deg
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