Comet P/2008 X4 (Christensen)

K. Kadota, Ageo, Japan, has reported astrometry for this comet (cf. IAUC 9005) from CCD images obtained with a 0.25-m f/5 reflector on 2008 Dec. 14.35 (at low altitude in very bright twilight), 30.9, and 31.9 UT, for which he provided total magnitudes 11, 10.6, and 10.5, respectively. The astrometry for Dec. 30 and 31, together with improved orbital elements by B. G. Marsden and an ephemeris, appear on MPEC 2009-A1.