Predictions for Grazing Occultation of ZC 3511, 2009 Jul 13

Grazing Occultation of    3511 A2      Magnitude 6.8 [Red = 6.7]   
Date: 2009 Jul 13 13h 40m,  to  2009 Jul 13 13h 45m

Nominal site altitude 100m

E. Longit.   Latitude     U.T.    Sun  Moon   TanZ   PA    AA      CA
   o  '  "    o  '  "   h  m  s   Alt Alt Az          o     o      o
 173 30  0  -39 22 57  13 40 20       28  57  1.91 324.7 347.41   9.92N
 173 40  0  -39 19  2  13 40 31       28  57  1.89 324.6 347.35   9.98N
 173 50  0  -39 15  6  13 40 43       28  56  1.88 324.6 347.32  10.02N
 174  0  0  -39 11  8  13 40 54       28  56  1.87 324.5 347.27  10.07N
 174 10  0  -39  7  9  13 41  6       28  56  1.85 324.5 347.22  10.11N
 174 20  1  -39  3  8  13 41 18       29  56  1.84 324.4 347.17  10.16N
 174 30  1  -38 59  6  13 41 30       29  56  1.83 324.4 347.12  10.21N
 174 40  1  -38 55  3  13 41 42       29  56  1.81 324.3 347.07  10.26N
 174 50  1  -38 50 58  13 41 54       29  55  1.80 324.3 347.03  10.31N
 175  0  1  -38 46 51  13 42  6       29  55  1.79 324.2 346.98  10.36N
 175 10  1  -38 42 43  13 42 18       29  55  1.77 324.2 346.93  10.41N
 175 20  1  -38 38 34  13 42 31       30  55  1.76 324.1 346.88  10.46N
 175 30  1  -38 34 23  13 42 43       30  55  1.75 324.1 346.83  10.51N
 175 40  2  -38 30 10  13 42 56       30  55  1.73 324.0 346.78  10.55N
 175 50  2  -38 25 56  13 43  9       30  54  1.72 324.0 346.73  10.60N
 176  0  2  -38 21 40  13 43 21       30  54  1.71 323.9 346.68  10.65N
 176 10  2  -38 17 23  13 43 34       31  54  1.70 323.9 346.63  10.70N
 176 20  2  -38 13  4  13 43 47       31  54  1.68 323.8 346.58  10.75N
 176 30  2  -38  8 44  13 44  0       31  54  1.67 323.8 346.53  10.80N
 176 40  2  -38  4 22  13 44 14       31  54  1.66 323.7 346.48  10.86N
 176 50  2  -37 59 58  13 44 27       31  54  1.65 323.7 346.43  10.91N
 177  0  3  -37 55 33  13 44 40       31  53  1.64 323.6 346.38  10.96N

Path coordinates are referred to WGS84 (as used by GPS), with the
nominal site altitude being referenced to Mean Sea Level.


                Librations  Long -6.14   Lat -6.23
                            P +347.53     D +7.73
      Illumination of moon  68%-
        Elongation of Moon  111
    Vertical Profile Scale  1.99 km/arcsec at mean distance of moon
   Horizontal Scale Factor  1.55 deg/min


At longitude 175.33:
Limiting Magnitudes for various telescope apertures (in cm)
      CA\Tdia   5    10    15    20    25    30    35
     6.5      5.4   6.9   7.6   8.1   8.4   8.6   8.8
     8.5      5.4   6.9   7.6   8.1   8.4   8.6   8.8
    10.5      5.5   6.9   7.6   8.1   8.4   8.7   8.8
    12.5      5.5   6.9   7.7   8.1   8.5   8.7   8.8
    14.5      5.5   6.9   7.7   8.2   8.5   8.7   8.9
 

Lunar Limb Profile