Predictions for Grazing Occultation of ZC 620, 2015 Oct 29

Graze profile
Grazing Occultation of     620 K0      Magnitude 6.1 [Red = 5.5]   
Date: 2015 Oct 29 12h 42m,  to  2015 Oct 29 13h  0m

Nominal site altitude 50m

E. Longit.   Latitude     U.T.    Sun  Moon   TanZ   PA    AA      CA
   o  '  "    o  '  "   h  m  s   Alt Alt Az          o     o      o
 135  0  0  -38 35 47  12 42  6       11  58  5.30 344.6 355.53  12.47N
 135 30  0  -38 24 11  12 42 19       11  57  5.07 344.6 355.49  12.51N
 136  0  0  -38 12 30  12 42 33       12  57  4.86 344.5 355.44  12.55N
 136 30  0  -38  0 45  12 42 47       12  57  4.66 344.5 355.40  12.60N
 137  0  0  -37 48 56  12 43  2       13  56  4.48 344.4 355.36  12.64N
 137 30  0  -37 37  2  12 43 17       13  56  4.31 344.4 355.32  12.68N
 138  0  0  -37 25  5  12 43 33       14  55  4.15 344.4 355.28  12.72N
 138 30  0  -37 13  3  12 43 50       14  55  4.00 344.3 355.24  12.76N
 139  0  0  -37  0 57  12 44  7       15  55  3.86 344.3 355.20  12.80N
 139 30  0  -36 48 47  12 44 25       15  54  3.73 344.2 355.16  12.84N
 140  0  0  -36 36 33  12 44 43       16  54  3.60 344.2 355.12  12.88N
 140 30  0  -36 24 15  12 45  3       16  54  3.48 344.2 355.08  12.92N
 141  0  0  -36 11 53  12 45 23       17  53  3.37 344.1 355.04  12.96N
 141 30  0  -35 59 26  12 45 43       17  53  3.27 344.1 355.00  12.99N
 142  0  0  -35 46 56  12 46  4       18  52  3.17 344.0 354.97  13.03N
 142 30  0  -35 34 22  12 46 27       18  52  3.07 344.0 354.93  13.07N
 143  0  0  -35 21 45  12 46 49       19  52  2.98 344.0 354.89  13.10N
 143 30  0  -35  9  3  12 47 13       19  51  2.89 343.9 354.86  13.14N
 144  0  0  -34 56 18  12 47 37       20  51  2.81 343.9 354.82  13.17N
 144 30  0  -34 43 30  12 48  2       20  50  2.73 343.9 354.79  13.21N
 145  0  0  -34 30 37  12 48 27       21  50  2.66 343.8 354.76  13.24N
 145 30  0  -34 17 42  12 48 54       21  50  2.59 343.8 354.72  13.27N
 146  0  0  -34  4 43  12 49 21       22  49  2.52 343.8 354.69  13.30N
 146 30  0  -33 51 40  12 49 49       22  49  2.45 343.7 354.66  13.33N
 147  0  0  -33 38 35  12 50 18       23  48  2.39 343.7 354.63  13.36N
 147 30  0  -33 25 26  12 50 48       23  48  2.33 343.7 354.61  13.39N
 148  0  0  -33 12 15  12 51 18       24  48  2.27 343.7 354.58  13.42N
 148 30  0  -32 59  0  12 51 49       24  47  2.21 343.6 354.55  13.44N
 149  0  0  -32 45 43  12 52 22       25  47  2.16 343.6 354.53  13.47N
 149 30  0  -32 32 23  12 52 55       25  46  2.10 343.6 354.50  13.49N
 150  0  0  -32 19  0  12 53 28       26  46  2.05 343.6 354.48  13.51N
 150 30  0  -32  5 35  12 54  3       27  45  2.00 343.5 354.46  13.54N
 151  0  0  -31 52  7  12 54 39       27  45  1.96 343.5 354.44  13.56N
 151 30  0  -31 38 38  12 55 15       28  44  1.91 343.5 354.42  13.57N
 152  0  0  -31 25  6  12 55 52       28  44  1.87 343.5 354.41  13.59N
 152 30  0  -31 11 33  12 56 31       29  43  1.83 343.5 354.39  13.60N
 153  0  0  -30 57 57  12 57 10       29  43  1.78 343.5 354.38  13.62N
 153 30  0  -30 44 21  12 57 50       30  43  1.74 343.4 354.37  13.63N
 154  0  0  -30 30 43  12 58 31       30  42  1.71 343.4 354.36  13.64N
 154 30  0  -30 17  3  12 59 13       31  42  1.67 343.4 354.35  13.65N
 155  0  0  -30  3 23  12 59 55       32  41  1.63 343.4 354.34  13.65N

Path coordinates are referred to WGS84 (as used by GPS), with the
nominal site altitude being referenced to Mean Sea Level. The path
is adjusted for the effects of refraction at low moon altitudes.

Projected diameter of star  3 meters  [Estimated]


    C A S S I N I   R E G I O N   G R A Z E
                Librations  Long +6.24   Lat +5.47
                            P +355.33     D -5.76
      Illumination of moon  94%-
        Elongation of Moon  151
    Vertical Profile Scale  2.34 km/arcsec at mean distance of moon
   Horizontal Scale Factor  1.67 deg/min


At longitude 145.00:
Limiting Magnitudes for various telescope apertures (in cm)
      CA\Tdia   5    10    15    20    25    30    35
     9.2      4.1   5.5   6.2   6.5   6.8   7.0   7.1
    11.2      4.1   5.5   6.2   6.6   6.8   7.0   7.1
    13.2      4.1   5.5   6.2   6.6   6.8   7.0   7.1
    15.2      4.5   5.9   6.5   7.0   7.2   7.4   7.5
    17.2      4.9   6.3   7.0   7.4   7.7   7.8   7.9

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

 

Lunar Limb Profile

Lunar Limb Profile