* Astronomy

Recent Goldstone delay-Doppler radar observations of the near-Earth asteroid 1992 UY4 have shown it to be a rounded object that is about 2 km in diameter. The asteroid with an absolute magnitude of 17.7 corresponds to an optically dark object with a visual albedo of only a few percent.
However, the lightcurve amplitude is about 0.3 mag, suggesting a somewhat elongated shape.

Additional Goldstone observations are scheduled on August 4 and 7 and Arecibo observations are scheduled on August 6-10.

1992 UY4 was discovered by Carolyn Shoemaker at Palomar on October 25, 1992.
It will approach within 0.040 AU (15.5 lunar distances) on August 8, 2005.


Ephemeris

Date    TT    R. A. (2000) Decl.     Delta      r     Elong.  Phase     V
2005 07 29    20 41.64   -20 05.3    0.0761   1.091   177.6     2.2    12.7
2005 08 03    21 46.02   -10 23.8    0.0522   1.065   165.2    14.1    12.3
2005 08 08    23 44.07   +10 03.9    0.0404   1.042   134.1    44.3    12.6
2005 08 13    02 05.93   +28 28.5    0.0489   1.023   100.7    76.6    14.0
2005 08 18    03 38.68   +34 07.4    0.0701   1.008    84.8    91.2    15.3
2005 08 23    04 29.05   +35 13.4    0.0956   0.998    79.1    95.5    16.1
2005 08 28    04 58.94   +35 16.0    0.122    0.991    77.7    95.3    16.6
2005 09 02    05 18.81   +35 03.5    0.149    0.990    78.4    93.1    17.0
2005 09 07    05 33.21   +34 47.5    0.175    0.993    80.2    89.8    17.2
2005 09 12    05 44.23   +34 31.4    0.200    1.001    82.7    85.8    17.3
2005 09 17    05 52.91   +34 16.1    0.224    1.013    85.7    81.5    17.4
2005 09 22    05 59.74   +34 02.1    0.247    1.030    89.1    77.0    17.5
2005 09 27    06 04.90   +33 49.4    0.268    1.050    92.8    72.4    17.6
2005 10 02    06 08.37   +33 38.0    0.288    1.074    96.9    67.7    17.6
2005 10 07    06 10.11   +33 27.7    0.305    1.101   101.4    62.8    17.7
2005 10 12    06 10.08   +33 18.0    0.322    1.132   106.3    57.8    17.7
2005 10 17    06 08.27   +33 08.4    0.338    1.164   111.6    52.8    17.7
2005 10 22    06 04.66   +32 58.1    0.353    1.199   117.2    47.6    17.7
2005 10 27    05 59.28   +32 46.0    0.368    1.235   123.2    42.3    17.7
2005 11 01    05 52.23   +32 30.8    0.384    1.273   129.6    36.9    17.7
2005 11 06    05 43.77   +32 11.3    0.402    1.312   136.4    31.4    17.7
2005 11 11    05 34.27   +31 46.7    0.421    1.352   143.3    26.0    17.8
2005 11 16    05 24.18   +31 16.5    0.444    1.392   150.3    20.6    17.8
2005 11 21    05 13.96   +30 41.3    0.470    1.434   157.4    15.4    17.8
2005 11 26    05 04.07   +30 02.0    0.501    1.475   164.2    10.5    17.8
2005 12 01    04 54.89   +29 20.1    0.536    1.517   170.4     6.2    17.8
2005 12 06    04 46.75   +28 37.5    0.576    1.560   173.8     3.9    17.9
2005 12 11    04 39.87   +27 56.1    0.622    1.602   171.2     5.4    18.2
2005 12 16    04 34.34   +27 17.1    0.672    1.644   165.9     8.4    18.6
2005 12 21    04 30.17   +26 41.6    0.728    1.687   160.3    11.4    18.9
2005 12 26    04 27.31   +26 10.3    0.788    1.729   154.7    14.1    19.3
2005 12 31    04 25.67   +25 43.4    0.853    1.771   149.3    16.5    19.6
2006 01 05    04 25.18   +25 20.9    0.922    1.813   144.1    18.6    19.9
2006 01 10    04 25.72   +25 02.6    0.996    1.854   139.1    20.3    20.1
2006 01 15    04 27.19   +24 48.1    1.073    1.896   134.3    21.8    20.4
2006 01 20    04 29.46   +24 36.9    1.154    1.937   129.7    23.0    20.6
2006 01 25    04 32.46   +24 28.7    1.237    1.977   125.3    24.0    20.9
2006 01 30    04 36.09   +24 22.9    1.324    2.017   121.1    24.7    21.1
2006 02 04    04 40.29   +24 19.2    1.414    2.057   116.9    25.3    21.3
2006 02 09    04 44.99   +24 17.1    1.505    2.097   112.9    25.7    21.5
2006 02 14    04 50.12   +24 16.1    1.599    2.136   109.0    25.9    21.6

A planning page for this object is available online: Here