(22) Kalliope and (22) Kalliope I

M. Soma, National Astronomical Observatory of Japan, Mitaka, Tokyo; and T. Hayamizu, Sendai Space Hall, Satsuma-sendai, Kagoshima, Japan, report that the occultations by minor planet (22) Kalliope and its satellite Linus (cf. IAUCs 7703, 8177, 8338) by the Tycho-catalogue star 1886-01206-1 (R.A. = 6h17m54s.067, Decl. = +27d11'49".12, equinox 2000.0; V = 9.1) were observed in Japan at around 2006 Nov. 7.826 UT. Positive observations of the occultations of each object have been reported thus far by eight observers, and the observations are consistent with each other. The angular distance between Kalliope and Linus was 0".26 in p.a. 313 degrees at the time of the occultation. The occultation by Linus was predicted by J. Berthier, IMCCE, whose prediction was forwarded by J. Lecacheux some 19 hours before the event, and it turned out that the prediction was accurate to within about 100 km. The derived diameter for Kalliope is 190 x 125 km (with the major axis in p.a. 0 deg), and that for Linus is 30 km. This is the first successful observation of an occultation by a satellite of a minor planet that was discovered previously by other means. A diagram of the observations is at URL http://uchukan.satsumasendai.jp/data/occult/0611Kalliope-red-E.gif.