Dear Observers,

Here is a list of targets for the April lunation.  Enjoy!

This list of targets is also available at
http://www.asu.cas.cz/~asteroid/binastphotsurvey_neosource_targets20180416.txt

Clear Skies,

Petr Pravec

Object                       V    Dec  Elo   Mot Bga   H    q    a     Arc  Hrev        P              Ampl  U

0. Worked objects:
(1785)    Wurm              15.7    3  132v  0.0  49  12.6 2.08 2.24  29opp
                            Return "prime suspect", worked by Amadeo Aznar.
(2194)    Arpola            16.0   13  142v  0.1  67  12.7 2.23 2.33  26opp 
                            Worked by Vladimir Benishek.
(5724)    1986 WE           16.1   12  148v  0.1  71  13.4 1.97 2.44  19opp 
                            Worked by Don Pray.
(6809)    Sakuma            16.4    2  146v  0.1  58  13.4 2.11 2.36  22opp 
                            Worked by Don Pray.
(8474)    Rettig            16.7   11  144v  0.2  67  13.7 1.84 2.22  21opp
                            Return binary, see the binast-webtool.
(17700)   1997 GM40         16.9   16  141v  0.1  70  14.0 1.88 2.32  18opp 
                            Binary candidate, see the binast-webtool.
(42946)   1999 TU95         16.9    3  161v  0.2  66  13.7 2.38 2.57  17oppT
                            Return paired asteroid, two nights per lunation
                            needed.

1. Returning binaries:
(2486)    Metsahovi         16.0  -27  153^  0.2  27  12.7 2.09 2.27  27opp
                            Returning 3-period binary, 5th apparition.
                            D_2/D_1 >=0.28, P_orb = 172.6 h
(2815)    Soma              16.4   -8  157^  0.2  42  12.9 1.86 2.23  24opp
                            Returning binary, 4th apparition.
                            D_2/D_1 = 0.25, P_orb = 17.91 h
(3982)    Kastel'           15.8  -21  164^  0.2  37  13.3 1.76 2.26  24opp
                            Returning probable binary, 5th apparition.
                            P_1 = 8.49 h, P_2 = 5.84 h
(4029)    Bridges           15.3  -13  174^  0.2  47  12.9 2.19 2.53  26opp
                            Returning binary, 6th apparition.
                            D_2/D_1 = 0.27, P_orb = 16.32 h
(4666)    Dietz             15.1  -29  160^  0.4  32  13.1 1.79 2.34  21opp
                            Returning binary candidate.
(5112)    Kusaji            17.0   -7  171^  0.3  51  13.9 1.89 2.18  18opp
                            Returning binary, 2nd apparition.
                            D_2/D_1 > 0.31, P_orb = 20.74 h
(31450)   1999 CU9          17.0  -27  162^  0.2  34  13.2 1.76 2.39  18opp
                            Returning binary, 2nd apparition.
                            D_2/D_1 >=0.22, P_orb = 53.5 h

2. Paired asteroids (errors <= 0.03 mag):
(11286)   1990 RO8          17.2   -7  175^  0.3  53  14.6 2.05 2.38  19oppT
                            One period (21.4 h) needed.

3. Returning "prime suspects", to be followed up on their 2nd (3rd, ...) apparitions
(1800)    Aguilar           16.2   -6  162^  0.2  46  12.8 2.04 2.36  30opp 12.8       2.478           0.11  3
(3382)    Cassidy           16.4  -27  145^  0.1  21  12.9 1.83 2.24  25opp 13.0       4.258      0.10 0.16  3-
(9368)    Esashi            16.2  -27  159^  0.2  31  13.5 2.04 2.31  19opp 13.5       2.9183     0.17 0.20  3

4. New targets (errors <= 0.03 mag):
(2712)    Keaton            15.6   -9  179^  0.3  52  13.6 2.08 2.16  26opp 
(3209)    Buchwald          15.7    0  170   0.3  61  13.4 2.08 2.19  25opp 
(3394)    Banno             14.6   -7  177   0.3  55  13.1 1.86 2.32  24opp 
(5351)    Diderot           15.4   -5  167^  0.2  51  13.1 2.08 2.43  24opp 
(5512)    1988 VD7          16.5   -8  167^  0.2  48  13.3 1.80 2.28  22opp 
(5518)    Mariobotta        15.1    6  164   0.3  67  12.9 1.85 2.27  24opp 
(5930)    Zhiganov          16.3   -7  162^  0.2  46  13.6 2.04 2.25  23opp 
(10108)   Tomlinson         16.1   21  149   0.4  81  13.3 2.04 2.40  20opp 
(11537)   Guericke          16.4   -3  170   0.3  56  14.6 1.87 2.19  17opp 
(17071)   1999 GK21         16.1   -8  173^  0.2  51  14.1 2.04 2.44  18opp 
(18586)   1997 YD3          16.5   -4  161^  0.2  48  13.9 2.04 2.47  17opp 
(194126)  2001 SG276        14.9b  19v 141^  2.3  55  17.7 1.08 1.43   8opp 

Note: The ephemerides were computed for 2018-04-16
      ^/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:
(1785)
(2194)
(5724)
(6809)
(8474)
(17700)
(42946)
(2486)
(2815)
(3982)
(4029)
(4666)
(5112)
(31450)
(11286)
(1800)
(3382)
(9368)
(2712)
(3209)
(3394)
(5351)
(5512)
(5518)
(5930)
(10108) 
(11537) 
(17071) 
(18586) 
(194126)