Grazing Occultation of  187461 A5      Magnitude 7.8 [Red = 7.6]   
Date: 2012 Oct 21  0h 31m,  to  2012 Oct 21  0h 39m

Nominal site altitude 236m

E. Longit.   Latitude     U.T.    Sun  Moon   TanZ   PA    AA      CA
   o  '  "    o  '  "   h  m  s   Alt Alt Az          o     o      o
- 97  0  0   37 50 19   0 31  0  -10  30 198  1.71 163.5 167.95  10.18S
- 96 45  0   37 58  0   0 31 26  -10  30 198  1.73 163.4 167.92  10.21S
- 96 30  0   38  5 42   0 31 52  -11  30 199  1.74 163.4 167.90  10.23S
- 96 15  0   38 13 26   0 32 17  -11  30 199  1.76 163.4 167.88  10.25S
- 96  0  0   38 21 11   0 32 43  -11  29 199  1.77 163.4 167.85  10.27S
- 95 45  0   38 28 58   0 33  8  -12  29 200  1.79 163.4 167.83  10.29S
- 95 30  0   38 36 46   0 33 32  -12  29 200  1.80 163.3 167.82  10.31S
- 95 15  0   38 44 36   0 33 57       29 200  1.82 163.3 167.80  10.33S
- 95  0  0   38 52 27   0 34 21       29 201  1.84 163.3 167.78  10.35S
- 94 45  0   39  0 19   0 34 46       28 201  1.85 163.3 167.76  10.37S
- 94 30  0   39  8 12   0 35  9       28 201  1.87 163.3 167.74  10.38S
- 94 15  0   39 16  7   0 35 33       28 202  1.89 163.3 167.73  10.40S
- 94  0  0   39 24  2   0 35 57       28 202  1.91 163.2 167.71  10.41S
- 93 45  0   39 31 59   0 36 20       27 202  1.92 163.2 167.70  10.43S
- 93 30  0   39 39 56   0 36 43       27 203  1.94 163.2 167.69  10.44S
- 93 15  0   39 47 55   0 37  6       27 203  1.96 163.2 167.68  10.45S
- 93  0  0   39 55 54   0 37 28       27 203  1.98 163.2 167.66  10.46S
- 92 45  0   40  3 54   0 37 50       27 204  2.00 163.2 167.65  10.48S
- 92 30  0   40 11 55   0 38 12       26 204  2.02 163.2 167.64  10.49S
- 92 15  0   40 19 57   0 38 34       26 204  2.04 163.2 167.63  10.49S
- 92  0  0   40 27 59   0 38 56       26 205  2.06 163.1 167.62  10.50S

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


                Librations  Long +5.09   Lat -4.16
                            P +167.43     D -2.72
      Illumination of moon  37%+
        Elongation of Moon  75
    Vertical Profile Scale  3.00 km/arcsec at mean distance of moon
   Horizontal Scale Factor  1.45 deg/min


At longitude -94.50:
Limiting Magnitudes for various telescope apertures (in cm)
      CA\Tdia   5    10    15    20    25    30    35
     6.4      5.7   7.1   7.9   8.4   8.8   9.0   9.2
     8.4      5.7   7.1   7.9   8.4   8.8   9.0   9.2
    10.4      5.7   7.2   8.0   8.5   8.8   9.1   9.2
    12.4      5.7   7.2   8.0   8.5   8.8   9.1   9.3
    14.4      5.7   7.2   8.0   8.5   8.8   9.1   9.3

------------------------------------------------------------------------------
Results of Observer Scan                                    UT
Site                              Long.   Lat.   Dist.    h  m  s
C  3 Bonner SprKS Robinson~Walte  -94.9   39.1    11km    0 34 32
C  4 Blue SprinMO Sandy~Robert L  -94.3   39.0    18km    0 35 24
C 11 GreenfieldWI MilwaukeeAS Ob  -88.1   43.0    37km    0 43 58