Predictions for Grazing Occultation of SAO 138801, 2008 Sep 2

Grazing Occultation of  138801  F5      Magnitude   8.1 
Date   2008 September  2    (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
 174  0  0  -37 34 10   6 56 55   -11 18 274  3.05 207.0 184.87   3.20S
 174 10  0  -37 34 19   6 56 59   -11 18 274  3.08 207.0 184.83   3.23S
 174 20  0  -37 34 28   6 57  3   -12 18 274  3.10 207.0 184.80   3.27S
 174 30  0  -37 34 36   6 57  7   -12 18 274  3.13 206.9 184.76   3.30S
 174 40  0  -37 34 43   6 57 11   -12 18 274  3.16 206.9 184.73   3.34S
 174 50  0  -37 34 50   6 57 14       17 274  3.19 206.9 184.69   3.37S
 175  0  0  -37 34 55   6 57 18       17 274  3.22 206.8 184.66   3.41S
 175 10  0  -37 35  0   6 57 22       17 274  3.24 206.8 184.62   3.44S
 175 20  0  -37 35  4   6 57 26       17 273  3.27 206.7 184.59   3.48S
 175 30  0  -37 35  7   6 57 29       17 273  3.30 206.7 184.55   3.51S
 175 40  0  -37 35  9   6 57 33       17 273  3.33 206.7 184.52   3.54S
 175 50  0  -37 35 11   6 57 36       17 273  3.36 206.6 184.49   3.58S
 176  0  0  -37 35 11   6 57 40       16 273  3.40 206.6 184.45   3.61S
 176 10  0  -37 35 11   6 57 43       16 273  3.43 206.6 184.42   3.65S
 176 20  0  -37 35 10   6 57 47       16 273  3.46 206.5 184.38   3.68S
 176 30  0  -37 35  9   6 57 50       16 273  3.49 206.5 184.35   3.72S
 176 40  0  -37 35  6   6 57 54       16 273  3.53 206.5 184.32   3.75S
 176 50  0  -37 35  3   6 57 57       16 272  3.56 206.4 184.28   3.78S
 177  0  0  -37 34 59   6 58  0       16 272  3.59 206.4 184.25   3.82S
 177 10  0  -37 34 54   6 58  4       15 272  3.63 206.4 184.21   3.85S
 177 20  0  -37 34 48   6 58  7       15 272  3.66 206.3 184.18   3.88S
 177 30  0  -37 34 42   6 58 10       15 272  3.70 206.3 184.15   3.92S
 177 40  0  -37 34 35   6 58 13       15 272  3.74 206.3 184.11   3.95S
 177 50  0  -37 34 27   6 58 16       15 272  3.77 206.2 184.08   3.98S
 178  0  0  -37 34 18   6 58 19       15 272  3.81 206.2 184.05   4.02S
 178 10  0  -37 34  9   6 58 22       15 272  3.85 206.2 184.02   4.05S
 178 20  0  -37 33 59   6 58 25       14 271  3.89 206.1 183.98   4.08S
 178 30  0  -37 33 48   6 58 28       14 271  3.93 206.1 183.95   4.11S

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

                Librations  Long +4.26   Lat +5.13
                            P +184.3     D +5.1
      Illumination of moon  7%+
        Elongation of Moon  30
    Vertical Profile Scale  1.89 km/arcsec at mean distance of moon
   Horizontal Scale Factor  1.82 deg/min

Limiting Magnitudes for various telescope apertures (in mm)
      CA\Tdia  50   100   150   200   250   300   350
     0.1      6.8   8.3   9.1   9.6  10.0  10.3  10.5
     2.1      6.9   8.3   9.1   9.7  10.1  10.4  10.6
     4.1      6.9   8.4   9.2   9.7  10.1  10.4  10.6
     6.1      6.9   8.4   9.2   9.8  10.2  10.4  10.7
     8.1      7.0   8.4   9.3   9.8  10.2  10.5  10.7

Lunar Limb Profile

Lunar Limb Profile