Predictions for Grazing Occultation of SAO 183168, 2009 Aug 26

Grazing Occultation of  183168 K1      Magnitude 7.1 [Red = 6.5]   
Date: 2009 Aug 26 10h 22m,  to  2009 Aug 26 10h 25m

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
 167 30  0  -46 22  3  10 22  2       29 267  1.82 188.3 171.83   8.59S
 167 40  0  -46 19 25  10 22 10       29 267  1.83 188.3 171.81   8.61S
 167 50  0  -46 16 46  10 22 18       29 266  1.84 188.3 171.78   8.64S
 168  0  0  -46 14  6  10 22 26       28 266  1.85 188.3 171.76   8.66S
 168 10  0  -46 11 26  10 22 33       28 266  1.86 188.2 171.74   8.69S
 168 20  1  -46  8 45  10 22 41       28 266  1.87 188.2 171.71   8.71S
 168 30  1  -46  6  2  10 22 49       28 266  1.89 188.2 171.69   8.73S
 168 40  1  -46  3 20  10 22 56       28 266  1.90 188.2 171.66   8.76S
 168 50  1  -46  0 36  10 23  4       28 266  1.91 188.1 171.64   8.78S
 169  0  1  -45 57 52  10 23 11       28 265  1.92 188.1 171.62   8.80S
 169 10  1  -45 55  6  10 23 19       27 265  1.93 188.1 171.59   8.83S
 169 20  1  -45 52 20  10 23 26       27 265  1.94 188.1 171.57   8.85S
 169 30  1  -45 49 34  10 23 34       27 265  1.95 188.0 171.55   8.87S
 169 40  2  -45 46 46  10 23 41       27 265  1.97 188.0 171.52   8.90S
 169 50  2  -45 43 58  10 23 49       27 265  1.98 188.0 171.50   8.92S
 170  0  2  -45 41  9  10 23 56       27 264  1.99 188.0 171.48   8.94S
 170 10  2  -45 38 19  10 24  3       27 264  2.00 187.9 171.46   8.97S
 170 20  2  -45 35 29  10 24 11       26 264  2.02 187.9 171.43   8.99S
 170 30  2  -45 32 37  10 24 18       26 264  2.03 187.9 171.41   9.01S
 170 40  2  -45 29 45  10 24 25       26 264  2.04 187.9 171.39   9.03S
 170 50  2  -45 26 52  10 24 32       26 264  2.05 187.9 171.36   9.06S
 171  0  3  -45 23 59  10 24 40       26 263  2.07 187.8 171.34   9.08S

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 +6.25   Lat +5.92
                            P +172.23     D +7.04
      Illumination of moon  39%+
        Elongation of Moon  77
    Vertical Profile Scale  2.04 km/arcsec at mean distance of moon
   Horizontal Scale Factor  1.75 deg/min


At longitude 169.33:
Limiting Magnitudes for various telescope apertures (in cm)
      CA\Tdia   5    10    15    20    25    30    35
     4.9      5.6   7.1   7.9   8.4   8.7   8.9   9.1
     6.9      5.7   7.1   7.9   8.4   8.7   9.0   9.1
     8.9      5.7   7.1   7.9   8.4   8.7   9.0   9.2
    10.9      5.7   7.1   7.9   8.4   8.8   9.0   9.2
    12.9      5.7   7.1   7.9   8.4   8.8   9.0   9.2

 

Lunar Limb Profile