Dear Observers, Updated list of targets is enclosed below. Enjoy. This list of targets is also available at http://www.asu.cas.cz/~asteroid/binastphotsurvey_listoftargets20110731.txt Clear Skies, Petr Pravec Object V Dec Elo Mot Bga H q a Arc Hrev P Ampl U 0. Worked objects: (1696) Nurmela 16.1 -33 149v 0.2 -12 12.9 2.04 2.26 23opp A suspect second period seen, needs to be confirmed with more observations (long sessions, errors < 0.02 mag), planned to be worked by David Higgins and Joe Pollock. (1718) Namibia 14.8 -1 163 0.2 -21 13.5 1.71 2.37 18opp Slowish rotator, more (linked) data needed to establish. (2131) Mayall 14.9 -46^ 134v 0.6 -8 12.7 1.68 1.89 14opp Return binary, under control by David Higgins and Joe Pollock. (2691) Sersic 17.0 -23 106v 0.3 29 13.4 1.99 2.24 16opp Binary, monitoring events evolution would be useful, errors <= 0.03 mag needed. (5327) 1989 EX1 17.1 -12 122v 0.2 22 13.7 1.96 2.34 12opp A few long sessions needed to nail down solution and complete double coverage. (5736) Sanford 16.0 14 124v 0.1 23 13.6 1.72 2.38 15opp A ~3-h period, needs to be nailed down with a couple or a few consecutive nights. (29292) Conniewalker 16.4 -26 120v 0.3 17 13.4 1.88 2.35 10opp Slowish tumbler, under control by Jim Brinsfield. 2011 EZ78 15.4f -53 131v 1.1 -61 17.3 1.11 2.40 118 Binary suspect, needs to be confirmed. 1. Returning binaries (1830) Pogson 15.6 -10 153^ 0.2 -51 12.4 2.06 2.19 25opp D_2/D_1 = 0.30, P_orb = 24.24 h, P_1 = 2.57 h, P_2 =3.26 h (5905) Johnson 16.5 -10 123^ 0.4 -72 14.0 1.77 1.91 12opp D_2/D_1 = 0.38, P_orb = 21.78 h 2. Paired asteroids (errors <=0.03 mag needed): (10123) Fideoja 16.3 -12 139^ 0.1 -65 14.1 1.80 2.27 15opp (13284) 1998 QB52 16.3 5 141^ 0.1 -45 13.1 2.19 2.67 14opp 3. Returning "prime suspects", to be followed up on their 2nd (3rd, ...) apparitions (4935) Maslachkova 15.9 -9 139^ 0.1 -62 13.1 1.87 2.19 17opp 13.1 2.90192 0.23 3 (11072) Hiraoka 16.3 0 161^ 0.2 -27 13.5 2.12 2.39 9opp 13.5 4.7512 0.36 3 (14196) 1998 XH59 16.0 -7 126^ 0.2 -68 13.4 1.77 2.27 10opp 13.4 3.2437 0.25 3 4. New targets Note: The ephemerides were computed for 2011-07-31 ^/v means that the value increases/decreases by more than 0.05 mag/day (for V) or by more than 0.5 deg/day for Dec and Elong. The rate of apparent motion (Mot) is in deg/day. Bga is the galactic latitude. Compact listing: (1696) (1718) (2131) (2691) (5327) (5736) (29292) 2011 EZ78 (1830) (5905) (10123) (13284) (4935) (11072) (14196)