Contents. planet: 4 - Mars satellites: M1 - Phobos: 141, M2 - Deimos: 113 total number: 254 type: absolute dates: 1988 observatory: 820 - Tarija Reference. Major S.P. and Semerenko R.L. Astrometric Observations of the Martian Satellites from Tarija, 1988. http://gua.db.ukr-vo.org/starcatalogs.php?whc=mrsbol Informations. relative to: absolute reference frame: astrometric centre of frame: topocentre epoch of equinox: J2000 time scale: UTC reduction: A catalogue prepared by H.Potter (Pulkovo) based upon the FK5/J2000 version of the FOCAT-S catalogue. coordinates: absolute diff. refraction: no information receptor: photographic telescope: 60-cm Cassegrain observers: Major S.P. and Semerenko R.L. data included in standard data file: no Comments. 1. Some observations of Phobos presented here are also available in mm0006 where, however, relative coordinates are given. 2. The rms residuals were obtained by comparing satellites' positions with the JPL ephemerides. DE403 was used for Mars positions. Format. 1. Satellite index (n: 1 - Phobos, 2 - Deimos) 2. Year of the date of observation 3. Month of the date of observation 4. Day of the date of observation with decimals 5. Hours of right ascension (alpha, h) 6. Minutes of right ascension (alpha, m) 7. Seconds of right ascension with decimals (alpha, s) 8. Degrees of declination (delta, deg) 9. Minutes of declination (delta, ') 11. Seconds of declination with decimals (delta, '') 12. Plate number (pl) 13. Number of exposures on the plate (exp) 14. Observer code (obs: 1 - Major, 2 - Semerenko, 12 - Major and Semerenko) 15. Number of reference stars (rs) 16. Residual (O-C)alpha (arcsec) (99.9 if not given) 17. Residual (O-C)delta (arcsec) (99.9 if not given) 18. Measuring machine codes (mm: 1 - TO ASCORECORD 3 DP; 2 - MAO ASCOREMAT, 12 - both machines) ------------------------------------------------------------------------ n year day alpha delta pl obs (O-C)a mm month h m s deg ' '' exp rs (O-C)d ------------------------------------------------------------------------