Grazing Occultation of   98144 G5      Magnitude 7.9 [Red = 7.3]   
Date: 2012 Apr 02  5h 49m,  to  2012 Apr 02  5h 58m

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   40 50 58   5 48 39       39 251  1.24  26.5  11.61  13.77N
- 96 45  0   40 41 25   5 49 10       39 251  1.25  26.5  11.60  13.76N
- 96 30  0   40 31 53   5 49 40       39 252  1.26  26.5  11.59  13.75N
- 96 15  0   40 22 22   5 50 10       38 252  1.27  26.5  11.58  13.74N
- 96  0  0   40 12 52   5 50 41       38 253  1.28  26.5  11.57  13.73N
- 95 45  0   40  3 23   5 51 11       38 253  1.29  26.5  11.56  13.72N
- 95 30  0   39 53 55   5 51 41       38 254  1.30  26.4  11.55  13.71N
- 95 15  0   39 44 28   5 52 10       37 254  1.31  26.4  11.54  13.70N
- 95  0  0   39 35  2   5 52 40       37 254  1.32  26.4  11.53  13.69N
- 94 45  0   39 25 38   5 53  9       37 255  1.33  26.4  11.51  13.67N
- 94 30  0   39 16 14   5 53 39       37 255  1.34  26.4  11.50  13.66N
- 94 15  0   39  6 53   5 54  8       36 256  1.35  26.4  11.48  13.65N
- 94  0  0   38 57 32   5 54 37       36 256  1.37  26.4  11.47  13.63N
- 93 45  0   38 48 14   5 55  6       36 256  1.38  26.3  11.45  13.62N
- 93 30  0   38 38 56   5 55 35       36 257  1.39  26.3  11.44  13.60N
- 93 15  0   38 29 41   5 56  3       35 257  1.40  26.3  11.42  13.58N
- 93  0  0   38 20 27   5 56 32       35 257  1.42  26.3  11.40  13.56N
- 92 45  0   38 11 15   5 57  0       35 258  1.43  26.3  11.38  13.55N
- 92 30  0   38  2  4   5 57 28       35 258  1.44  26.3  11.37  13.53N
- 92 15  0   37 52 56   5 57 56       34 259  1.46  26.2  11.35  13.51N
- 92  0  0   37 43 49   5 58 24       34 259  1.47  26.2  11.33  13.49N

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  [Estimated]


                Librations  Long -8.14   Lat +6.65
                            P +10.58     D -7.88
      Illumination of moon  74%+
        Elongation of Moon  118
    Vertical Profile Scale  2.54 km/arcsec at mean distance of moon
   Horizontal Scale Factor  1.68 deg/min


At longitude -94.50:
Limiting Magnitudes for various telescope apertures (in cm)
      CA\Tdia   5    10    15    20    25    30    35
     9.7      5.5   7.0   7.7   8.2   8.5   8.8   9.0
    11.7      5.5   7.0   7.7   8.2   8.6   8.8   9.0
    13.7      5.5   7.0   7.8   8.2   8.6   8.8   9.0
    15.7      5.5   7.0   7.8   8.3   8.6   8.8   9.0
    17.7      5.6   7.0   7.8   8.3   8.6   8.8   9.0

------------------------------------------------------------------------------
Results of Observer Scan                                    UT
Site                              Long.   Lat.   Dist.    h  m  s
C  2 Nebraska CNE Lanning~Eugene  -95.9   40.7    43km    5 50 48
C  3 Bonner SprKS Robinson~Walte  -94.9   39.1    40km    5 52 52
C  4 Blue SprinMO Sandy~Robert L  -94.3   39.0    13km    5 53 57
C  8 Rolla     MO Senne~Joseph H  -91.8   37.9    30km    5 58 49