Contents. planet: 8 - Neptune satellites: N1-Triton : 1095 total number: 1095 type: absolute dates: 2007-2009 observatory: 327 - Peking Observatory, Xinglong Station 337 - Sheshan, formerly Zo-Se Reference. Qiao R. C., Zhang H. Y., Dourneau G., Yu Y., Yan D., Shen K. X., Cheng X., Xi X. J., Hu X. Y., Wang, S. H. (2014) New astrometric observations of Triton in 2007-2009. Monthly Notices of the Royal Astronomical Society. V. 440. Issue 4. P. 3749-3756. 2014MNRAS_440_3749Q Informations. relative to: absolute reference frame: astrometric centre of frame: topocentre epoch of equinox: J2000 time scale: UTC reduction: UCAC2 coordinates: absolute diff. refraction: no information receptor: CCD telescope: 1 - Reflector, D=156 cm (at the Sheshan Station, code 337), 2 - Reflector, D=100 cm (at the Xinglong Station, code 327), 3 - Reflector, D=216 cm (at the Xinglong Station, code 327), observers: Qiao R. C., Zhang H. Y. et al. (see the publication) data included in standard data file: no Comments. The 1.56 m telescope, equipped with a large liquid-nitrogen-cooled CCD and located at the Sheshan Station, was used in the five missions made in 2007 August and September, 2008 August and September and 2009 August. In the observing missions of 2007 August and September the 1.00 m telescope at the Xinglong Station was used. In the mission undertaken in 2007 August the 2.16 m telescope was used. Format. 1. Year of observation 2. Month of observation 3. Day of observation with decimals 4. Hour of right ascension (alpha, h) 5. Minute of right ascension (alpha, m) 6. Second of right ascension (alpha, s) 7. Degree of declination (delta, deg) 8. Minute of declination (delta, ' ) 9. Second of declination (delta, '' ) 10. Code of observatory (327 or 337). -------------------------------------------------- Year day alpha delta Obs month (UTC) h m s deg ' '' code --------------------------------------------------