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IAUC Circular No. 9052, issued on 2009, June 16, announces the discovery by Rui Yang and Xing Gao of a new comet on several survey images taken by Gao in the course of the Xingming Comet Survey at Mt. Nanshan using a Canon 350D camera (+ 10.7-cm f/2.8 camera lens).

IAU circular No. 9078, issued on 2009, Sept. 29, announces that an asteroidal object, discovered with a 0.45-m f/2.8 reflector + CCD by the "La Sagra Sky Survey" (Spain), has been reported to show cometary features by several observers, involved in its astrometric follow-up.

IAU circular No. 9106, issued on 2010, Jan. 09, announces the discovery of another comet by R. E. Hill, named C/2010 A3. It was discovered with the Catalina 0.68-m Schmidt telescope + CCD in the course of the Catalina Sky Survey.

MPEC 2010-A59 announces the discovery by Linear survey of a new object designated 2010 AL30. According to the preliminary orbit, 2010 AL30 will approach Earth at about 0.34 lunar-distance at 1248 UTC on 13 Jan. 2010 at magnitude 14 and it will be moving at about 10 arcsec/sec.

AU circular No. 9107, issued on 2010, Jan. 14, announces the discovery by G. J. Garradd of an apparently asteroidal object, on CCD images taken with the 0.5-m Uppsala Schmidt telescope in the course of the Siding Spring Survey.

IAU circular No. 9134, issued on 2010, April 11, announces the discovery by R. E. Hill of a new comet on Apr. 10, 2010, in the course of the Catalina Sky Survey.

We have performed a simulation of a next generation sky survey's (Pan-STARRS 1) efficiency for detecting Earth-impacting asteroids.