Predictions for Grazing Occultation of ZC 2373, 2009 Feb 17

Grazing Occultation of    2373 K1      Magnitude 6.1 [Red = 5.5]   
Date: 2009 Feb 17 20h 52m,  to  2009 Feb 17 21h  1m

Nominal site altitude 5m

E. Longit.   Latitude     U.T.    Sun  Moon   TanZ   PA    AA      CA
   o  '  "    o  '  "   h  m  s   Alt Alt Az          o     o      o
 115  0  0  -29 45 41  20 51 55       62  92  0.54 197.4 188.02   9.70S
 115 12  0  -29 51 38  20 52 23       62  91  0.53 197.4 187.96   9.65S
 115 24  0  -29 57 33  20 52 51       62  91  0.53 197.3 187.90   9.59S
 115 36  0  -30  3 26  20 53 20       62  91  0.52 197.2 187.84   9.53S
 115 48  0  -30  9 16  20 53 48       63  90  0.52 197.2 187.79   9.47S
 116  0  0  -30 15  3  20 54 17       63  90  0.51 197.1 187.73   9.41S
 116 12  0  -30 20 49  20 54 45       63  90  0.50 197.1 187.67   9.35S
 116 24  0  -30 26 32  20 55 14       64  89  0.50 197.0 187.60   9.29S
 116 36  0  -30 32 12  20 55 42       64  89  0.49 196.9 187.54   9.23S
 116 48  0  -30 37 50  20 56 11       64  89  0.49 196.9 187.48   9.17S
 117  0  0  -30 43 25  20 56 39       64  88  0.48 196.8 187.42   9.10S
 117 12  0  -30 48 58  20 57  8       65  88  0.47 196.8 187.36   9.04S
 117 24  0  -30 54 29  20 57 36  -12  65  87  0.47 196.7 187.29   8.98S
 117 36  0  -30 59 57  20 58  5  -12  65  87  0.46 196.6 187.23   8.91S
 117 48  0  -31  5 22  20 58 33  -11  65  87  0.46 196.6 187.16   8.85S
 118  0  0  -31 10 45  20 59  2  -11  66  86  0.45 196.5 187.10   8.78S
 118 12  0  -31 16  6  20 59 31  -11  66  86  0.45 196.4 187.03   8.72S
 118 24  0  -31 21 24  20 59 59  -11  66  86  0.44 196.4 186.97   8.65S
 118 36  0  -31 26 39  21  0 28  -10  67  85  0.43 196.3 186.90   8.58S
 118 48  0  -31 31 52  21  0 56  -10  67  85  0.43 196.2 186.83   8.52S
 119  0  0  -31 37  2  21  1 25  -10  67  84  0.42 196.2 186.76   8.45S

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

Projected diameter of star  2 meters


                Librations  Long +3.95   Lat +5.67
                            P +187.84     D +5.37
      Illumination of moon  40%-
        Elongation of Moon  79
    Vertical Profile Scale  1.89 km/arcsec at mean distance of moon
   Horizontal Scale Factor  1.27 deg/min


At longitude 117.00:
Limiting Magnitudes for various telescope apertures (in cm)
      CA\Tdia   5    10    15    20    25    30    35
     5.1      6.0   7.4   8.3   8.8   9.2   9.5   9.8
     7.1      6.0   7.5   8.3   8.8   9.2   9.5   9.8
     9.1      6.0   7.5   8.3   8.9   9.3   9.6   9.8
    11.1      6.0   7.5   8.3   8.9   9.3   9.6   9.8
    13.1      6.0   7.5   8.3   8.9   9.3   9.6   9.8

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Lunar Limb Profile - Perth