[Interpreting and using the prediction and profile information below]

Predictions for Grazing Occultation of ZC 1837, 2005 Sep 6

Grazing Occultation of    1837  K2      Magnitude   7.4 
Date   2005 September  6    (Tuesday)     Nominal site altitude  0m

E. Longit.   Latitude     U.T.    Sun  Moon   TanZ   PA    WA      CA
   o  '  "    o  '  "   h  m  s   Alt Alt Az          o     o      o
 114  0  0  -31 15  3  10 37 27    -6 22 278  2.47  31.3  10.12   8.63N
 114 10  0  -31 16 14  10 37 36    -7 22 278  2.49  31.2  10.08   8.59N
 114 20  0  -31 17 24  10 37 45    -7 22 278  2.51  31.2  10.03   8.54N
 114 30  0  -31 18 33  10 37 54    -7 22 278  2.54  31.1   9.98   8.49N
 114 40  0  -31 19 41  10 38  2    -7 21 278  2.56  31.1   9.93   8.44N
 114 50  0  -31 20 48  10 38 11    -7 21 278  2.58  31.0   9.88   8.39N
 115  0  0  -31 21 54  10 38 19    -8 21 277  2.61  31.0   9.83   8.34N
 115 10  0  -31 22 58  10 38 28    -8 21 277  2.63  30.9   9.78   8.29N
 115 20  0  -31 24  2  10 38 36    -8 21 277  2.65  30.9   9.74   8.25N
 115 30  0  -31 25  4  10 38 45    -8 20 277  2.68  30.9   9.69   8.20N
 115 40  0  -31 26  5  10 38 53    -8 20 277  2.70  30.8   9.64   8.15N
 115 50  0  -31 27  5  10 39  1    -8 20 277  2.73  30.8   9.59   8.10N
 116  0  0  -31 28  5  10 39  9    -9 20 277  2.75  30.7   9.54   8.05N
 116 10  0  -31 29  3  10 39 17    -9 20 277  2.78  30.7   9.50   8.01N
 116 20  0  -31 30  0  10 39 25    -9 20 277  2.81  30.6   9.45   7.96N
 116 30  0  -31 30 55  10 39 33    -9 19 276  2.83  30.6   9.40   7.91N
 116 40  0  -31 31 50  10 39 41    -9 19 276  2.86  30.5   9.36   7.87N
 116 50  0  -31 32 44  10 39 48    -9 19 276  2.89  30.5   9.31   7.82N
 117  0  0  -31 33 37  10 39 56   -10 19 276  2.92  30.4   9.26   7.77N
 117 10  0  -31 34 28  10 40  4   -10 19 276  2.94  30.4   9.22   7.73N
 117 20  0  -31 35 19  10 40 11   -10 19 276  2.97  30.3   9.17   7.68N
 117 30  0  -31 36  8  10 40 18   -10 18 276  3.00  30.3   9.12   7.63N
 117 40  0  -31 36 57  10 40 26   -10 18 276  3.03  30.2   9.08   7.59N
 117 50  0  -31 37 44  10 40 33   -10 18 276  3.06  30.2   9.03   7.54N

Path coordinates are referred to WGS84 (as used by GPS).

                Librations  Long -5.81   Lat -0.21
                            P +9.1     D -0.4
      Illumination of moon  6%+
        Elongation of Moon  29
    Vertical Profile Scale  1.87 km/arcsec at mean distance of moon
   Horizontal Scale Factor  1.72 deg/min

Limiting Magnitudes for various telescope apertures (in mm)
      CA\Tdia  50   100   150   200   250   300   350
     3.5      7.1   8.5   9.3   9.9  10.2  10.5  10.7
     5.5      7.1   8.6   9.4   9.9  10.3  10.5  10.7
     7.5      7.1   8.6   9.4   9.9  10.3  10.5  10.7
     9.5      7.1   8.6   9.4   9.9  10.3  10.6  10.8
    11.5      7.1   8.6   9.4   9.9  10.3  10.6  10.8

Lunar Limb Profile for graze near Perth

Lunar Limb Profile