Contents. asteroid: (121)Hermione satellite: S/2001(121)1 total number: 7 type: position dates: 2006 - 2008 observatory: 309 - Cerro Paranal (ESO, Chile) 568 - Mauna Kea (the Keck observatory, Hawaii, USA) Reference. Descamps, P.; Marchis, F.; Durech, J.; Emery, J.; Harris, A. W.; Kaasalainen, M.; Berthier, J.; Teng-Chuen-Yu, J.-P.; Peyrot, A.; Hutton, L.; Greene, J.; Pollck, J.; Assafin, M.; Vieira-Martins, R.; Camargo, J. I. B.; Braga-Ribas, F.; Vachier, F.; Reichart, D. E.; Ivarsen, K. M.; Crain, J. A.; Nysewander, M. C.; Lacluyze, A. P.; Haislip, J. B.; Behrend, R.; Colas, F.; Lecacheux, J.; Bernasconi, L.; Roy, R.; Baudouin, P.; Brunetto, L.; Sposetti, S.; Manzini, F. 2009 New insights on the binary Asteroid 121 Hermione. Icarus. 2009. V. 203. Issue 1. P. 88-101. 2009Icar..203...88D Information relative to: primary reference frame: astrometric ICRF centre of frame: topocenter epoch of equinox: J2000 time scale: UTC reduction: not available coordinates: X, Y (secondary relative to primary) receptor: CCD telescopes: 1 - NAOS (Nasmyth AO System) Yepun-UT4 telescope (VLT) 2 - Keck II AO system with the NIRC2 infrared camera Comments. The root mean square error (RMS) of the whole set of data is of 28 mas in X and 36 mas in Y Format. 1. Year of the moment of observation 2. Month of the moment of observation 3. Day of the moment of observation 4. Hour of the moment of observation 5. Minute of the moment of observation 6. Second of the moment of observation 7. X (arcsec) - relative right ascension 8. Y (arcsec)- relative declination 9. Ntel - the number of telescope 10. Code obs - Code 0f observatory ---------------------------------------------------- Year h X Y Ntel Code Month m Day s (arcsec) (arcsec) obs ---------------------------------------------------