Predictions for Grazing Occultation of ZC 1370, 2008 Apr 14

Grazing Occultation of    1370 WA0      Magnitude   6.9 
Date   2008 April 14    (Monday)     Nominal site altitude  0m

E. Longit.   Latitude     U.T.    Sun  Moon   TanZ   PA    WA      CA
   o  '  "    o  '  "   h  m  s   Alt Alt Az          o     o      o
 148  0  0  -20 27 31   9 45 34       52   1  0.79  37.1  21.61  19.34N
 148 10  0  -20 36 37   9 46  7       51   1  0.80  37.1  21.64  19.37N
 148 20  0  -20 45 44   9 46 40       51   0  0.80  37.1  21.67  19.40N
 148 30  0  -20 54 53   9 47 12       51 360  0.80  37.2  21.69  19.43N
 148 40  0  -21  4  3   9 47 45       51 359  0.81  37.2  21.72  19.45N
 148 50  0  -21 13 15   9 48 17       51 359  0.81  37.2  21.74  19.48N
 149  0  0  -21 22 28   9 48 50       51 358  0.82  37.2  21.77  19.50N
 149 10  0  -21 31 41   9 49 22       51 358  0.82  37.3  21.79  19.52N
 149 20  0  -21 40 56   9 49 54       50 358  0.83  37.3  21.81  19.54N
 149 30  0  -21 50 12   9 50 26       50 357  0.83  37.3  21.83  19.56N
 149 40  0  -21 59 29   9 50 59       50 357  0.84  37.3  21.85  19.58N
 149 50  0  -22  8 47   9 51 30       50 356  0.84  37.4  21.87  19.60N
 150  0  0  -22 18  5   9 52  2       50 356  0.85  37.4  21.89  19.62N
 150 10  0  -22 27 25   9 52 34       50 355  0.85  37.4  21.90  19.64N
 150 20  0  -22 36 45   9 53  6       49 355  0.86  37.4  21.92  19.65N
 150 30  0  -22 46  6   9 53 37       49 355  0.86  37.4  21.93  19.66N
 150 40  0  -22 55 27   9 54  9       49 354  0.87  37.4  21.94  19.68N
 150 50  0  -23  4 49   9 54 40       49 354  0.88  37.4  21.96  19.69N
 151  0  0  -23 14 12   9 55 11       49 353  0.88  37.4  21.97  19.70N
 151 10  0  -23 23 35   9 55 42       48 353  0.89  37.5  21.98  19.71N
 151 20  0  -23 32 58   9 56 13       48 353  0.89  37.5  21.99  19.72N
 151 30  0  -23 42 22   9 56 44       48 352  0.90  37.5  22.00  19.73N
 151 40  0  -23 51 46   9 57 15       48 352  0.91  37.5  22.00  19.74N
 151 50  0  -24  1 11   9 57 45       48 351  0.91  37.5  22.01  19.74N
 152  0  0  -24 10 35   9 58 16       47 351  0.92  37.5  22.01  19.75N

Path coordinates are referred to WGS84 (as used by GPS).

   1370 is double :   6.8  9.5  130"  253.0
Graze Path of component #2  240.71km North, and 212.3 secs. earlier cf. primary.

                Librations  Long +6.06   Lat -1.80
                            P +21.8     D +4.2
      Illumination of moon  67%+
        Elongation of Moon  110
    Vertical Profile Scale  2.27 km/arcsec at mean distance of moon
   Horizontal Scale Factor  1.31 deg/min

Limiting Magnitudes for various telescope apertures (in mm)
      CA\Tdia  50   100   150   200   250   300   350
    15.7      5.7   7.2   8.0   8.5   8.8   9.1   9.3
    17.7      5.7   7.2   8.0   8.5   8.9   9.1   9.3
    19.7      5.7   7.2   8.0   8.5   8.9   9.1   9.3
    21.7      5.7   7.2   8.0   8.5   8.9   9.1   9.3
    23.7      5.7   7.2   8.0   8.5   8.9   9.2   9.4

Lunar Limb Profile

Lunar Limb Profile