Grazing Occultation of  138129DF8      Magnitude 7.9 [Red = 7.5]   
Date: 2012 Jun 26  2h 42m,  to  2012 Jun 26  2h 51m

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   41 52 31   2 41 42   -6  29 238  1.83  27.2   3.53   2.62N
- 96 45  0   41 44 59   2 42 12   -6  28 238  1.85  27.1   3.49   2.57N
- 96 30  0   41 37 33   2 42 42   -7  28 239  1.86  27.1   3.44   2.53N
- 96 15  0   41 30 12   2 43 11   -7  28 239  1.88  27.0   3.40   2.49N
- 96  0  0   41 22 55   2 43 41   -7  28 239  1.89  27.0   3.35   2.44N
- 95 45  0   41 15 44   2 44 10   -8  28 240  1.90  27.0   3.31   2.40N
- 95 30  0   41  8 37   2 44 39   -8  28 240  1.92  26.9   3.26   2.35N
- 95 15  0   41  1 36   2 45  8   -8  27 241  1.93  26.9   3.22   2.30N
- 95  0  0   40 54 39   2 45 36   -8  27 241  1.95  26.8   3.17   2.26N
- 94 45  0   40 47 47   2 46  5   -9  27 241  1.97  26.8   3.12   2.21N
- 94 30  0   40 41  0   2 46 33   -9  27 242  1.98  26.7   3.08   2.16N
- 94 15  0   40 34 18   2 47  0   -9  27 242  2.00  26.7   3.03   2.12N
- 94  0  0   40 27 41   2 47 28  -10  26 242  2.02  26.6   2.98   2.07N
- 93 45  0   40 21  9   2 47 55  -10  26 243  2.03  26.6   2.93   2.02N
- 93 30  0   40 14 42   2 48 22  -10  26 243  2.05  26.5   2.89   1.97N
- 93 15  0   40  8 20   2 48 49  -10  26 243  2.07  26.5   2.84   1.93N
- 93  0  0   40  2  3   2 49 16  -11  26 244  2.09  26.4   2.79   1.88N
- 92 45  0   39 55 50   2 49 42  -11  25 244  2.11  26.4   2.74   1.83N
- 92 30  0   39 49 43   2 50  8  -11  25 244  2.13  26.3   2.69   1.78N
- 92 15  0   39 43 40   2 50 34  -12  25 245  2.15  26.3   2.64   1.73N
- 92  0  0   39 37 42   2 51  0  -12  25 245  2.17  26.2   2.59   1.68N

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  1 meters  [Estimated]

138129 is double: 
  BA 7.9 7.1 9.5"  73.8 (STF1529) Graze path of A 22.38 km south, and 15.2 secs later compared to B

    C A S S I N I   R E G I O N   G R A Z E
                Librations  Long -6.09   Lat +7.27
                            P +2.34     D -7.33
      Illumination of moon  38%+
        Elongation of Moon  77
    Vertical Profile Scale  3.41 km/arcsec at mean distance of moon
   Horizontal Scale Factor  1.64 deg/min


At longitude -94.50:
Limiting Magnitudes for various telescope apertures (in cm)
      CA\Tdia   5    10    15    20    25    30    35
    -1.8      3.1   4.5   5.2   5.6   5.8   6.0   6.1
     0.2      4.6   6.0   6.7   7.2   7.5   7.7   7.8
     2.2      4.9   6.3   7.0   7.5   7.8   8.0   8.2
     4.2      4.9   6.3   7.0   7.5   7.8   8.0   8.2
     6.2      5.6   7.1   7.9   8.4   8.7   8.9   9.1

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Double star catalogue details
WDS entries 
 
  RA  Dec Name          Y1   Y2     N  PA  PA   Sep   Sep  M1    M2 
11194-0139STF1529      1796 2010   83 259 254  10.7   9.5  7.10  7.91 F6IV dG3  -222-154 -215-155 -00 2428 NVD  111922.64-013917.6 
 
------------------------------------------------ 
Interferometric catalogue entries 
 
111922.77-013916.3  ADS  8131                 STF1529                   HD  98427    HIP  55288         11194-0139     
    Date       PA              Sep                  M1             M2 
  1991.25     254.0     .      9.480      .         7.17    .      7.95    .       550       0.3   1  HIP1997a Thp     
  1991.25        .      .       .         .         7.105  0.009   7.903  0.015    530 100   1.4   1  TYC1997  Tty     
  1991.25        .      .       .         .         7.651  0.010   8.694  0.018    430  90   1.4   1  TYC1997  Tty     
  1991.25        .      .       .         .         7.167  0.007   7.945  0.014    511 222   0.3   1  HIP1997f Thp     
  1991.83     253.6     .      9.473      .         7.10    .      7.91    .       530 100   1.4   1  TYC2000b Tty     
  1999.04        .      .       .         .         6.09    .      6.63    .      1256 245   1.3   1  Tok2011a E2m     
  1999.04        .      .       .         .         5.82    .      6.22    .      2210 200   1.3   1  Tok2011a E2m     
  2010.0859   253.94    .      9.462      .          .      .      0.54    .      2272  35   8.1   1  Tok2010c U       
  2010.0859   253.96    .      9.456      .          .      .      0.84    .      1587  15   8.1   1  Tok2010c U       
  2010.14        .      .       .         .         7.05    .      7.83    .       550       1.3   1  Tok2011a F       
 

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Results of Observer Scan                                    UT
Site                              Long.   Lat.   Dist.    h  m  s