Predictions for Grazing Occultation of ZC 2643, 2007 May 6

Grazing Occultation of    2643  K1      Magnitude   6.7 
Date   2007 May  6    (Sunday)     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
 173  0  0  -36  5 44  17 25 39       68 285  0.41 348.5 349.93  13.83N
 173 10  0  -36  2 23  17 26  5       68 284  0.41 348.4 349.87  13.89N
 173 20  0  -35 59  1  17 26 31       67 284  0.42 348.4 349.81  13.95N
 173 30  0  -35 55 36  17 26 57       67 284  0.42 348.3 349.75  14.01N
 173 40  0  -35 52 10  17 27 23       67 283  0.43 348.3 349.69  14.07N
 173 50  0  -35 48 42  17 27 49       67 283  0.43 348.2 349.63  14.13N
 174  0  0  -35 45 12  17 28 15       67 282  0.43 348.1 349.57  14.19N
 174 10  0  -35 41 40  17 28 41       66 282  0.44 348.1 349.51  14.25N
 174 20  0  -35 38  7  17 29  7       66 282  0.44 348.0 349.45  14.31N
 174 30  0  -35 34 32  17 29 32       66 281  0.45 348.0 349.40  14.36N
 174 40  0  -35 30 55  17 29 58       66 281  0.45 347.9 349.34  14.42N
 174 50  0  -35 27 16  17 30 24       66 280  0.46 347.9 349.28  14.48N
 175  0  0  -35 23 36  17 30 50       65 280  0.46 347.8 349.22  14.54N

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

                Librations  Long -6.48   Lat +6.01
                            P +348.6     D -4.4
      Illumination of moon  83%-
        Elongation of Moon  132
    Vertical Profile Scale  1.90 km/arcsec at mean distance of moon
   Horizontal Scale Factor  1.33 deg/min

Limiting Magnitudes for various telescope apertures (in mm)
      CA\Tdia  50   100   150   200   250   300   350
    10.5      5.6   7.1   7.9   8.4   8.8   9.0   9.3
    12.5      5.6   7.1   7.9   8.4   8.8   9.1   9.3
    14.5      5.6   7.1   7.9   8.4   8.8   9.1   9.3
    16.5      5.7   7.1   7.9   8.4   8.8   9.1   9.3
    18.5      5.7   7.1   7.9   8.5   8.8   9.1   9.3

Lunar Limb Profile