Content asteroid: (216)Kleopatra satellites: 1 - Alexhelios: 9 2 - Cleoselene: 6 total number: 15 type: position dates: 2008-2008 observatory: 568 - Mauna Kea (W.M.Keck observatory, Hawaii, USA) Reference. P. Descamps, F. Marchis, J. Berthier, J.P. Emery, G. Duchene, H.B. Hammel, F. Vachier, P. Wiggins, J.-P. Teng-Chuen-Yu, A. Peyrot, R. Vieira-Martins, J.I.B. Camargo, F. Braga-Ribas, B. Macomber Triplicity and physical characteristics of Asteroid (216) Kleopatra. Icarus. 2011. V. 211. P. 1022–1033. 2011Icar..211.1022D Information relative to: primary reference frame: astrometric ICRF centre of frame: topocentre epoch of equinox: J2000 time scale: UTC reduction: not available coordinates: X, Y (secondary relative to primary) receptor: CCD telescope: 10m Keck-II telescope Comments. The diameter of each moonlet was estimated from peak-to-peak differential amplitude delta(mag) with the primary assuming similar albedos, which is sized to its IRAS diameter. 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. Nsat - the number of satellite 7. X(arcsec) - relative right ascension 8. Y(arcsec) - relative declination 9. delta(mag) - peak-to-peak differential amplitude with the primary 10. D(km) - diameter of satellite ------------------------------------------------------ Year h Nsat X Y delta(mag) D Month m arcsec arcsec km Day ------------------------------------------------------