[Interpreting and using the prediction and profile information below]

Predictions for Grazing Occultation of ZC 1645, 2005 Dec 22

Grazing Occultation of    1645  F8      Magnitude   6.7 
Date   2005 December 22    (Thursday)     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
 150  0  0  -27  5 46  15 45 42       29  65  1.81 214.4 192.88  11.78S
 150 10  0  -27 10 35  15 46  7       29  64  1.79 214.4 192.95  11.85S
 150 20  0  -27 15 27  15 46 32       29  64  1.78 214.5 193.02  11.92S
 150 30  0  -27 20 24  15 46 57       29  64  1.77 214.6 193.10  11.99S
 150 40  0  -27 25 24  15 47 23       30  64  1.75 214.6 193.17  12.06S
 150 50  0  -27 30 29  15 47 49       30  63  1.74 214.7 193.24  12.13S
 151  0  0  -27 35 38  15 48 14       30  63  1.73 214.8 193.31  12.20S
 151 10  0  -27 40 51  15 48 41       30  63  1.72 214.9 193.38  12.28S
 151 20  0  -27 46  8  15 49  7       30  63  1.70 214.9 193.45  12.35S
 151 30  0  -27 51 30  15 49 34       31  63  1.69 215.0 193.52  12.42S
 151 40  0  -27 56 55  15 50  0       31  62  1.68 215.1 193.59  12.49S
 151 50  0  -28  2 25  15 50 27       31  62  1.67 215.1 193.67  12.56S
 152  0  0  -28  7 59  15 50 55       31  62  1.66 215.2 193.74  12.63S
 152 10  0  -28 13 38  15 51 22       31  62  1.65 215.3 193.81  12.70S
 152 20  0  -28 19 21  15 51 50       31  61  1.64 215.4 193.88  12.77S
 152 30  0  -28 25  8  15 52 18       32  61  1.62 215.4 193.95  12.84S
 152 40  0  -28 31  0  15 52 46       32  61  1.61 215.5 194.02  12.91S
 152 50  0  -28 36 57  15 53 14       32  61  1.60 215.6 194.09  12.99S
 153  0  0  -28 42 57  15 53 43       32  60  1.59 215.6 194.16  13.06S
 153 10  0  -28 49  2  15 54 12       32  60  1.58 215.7 194.23  13.13S
 153 20  0  -28 55 12  15 54 41       32  60  1.57 215.8 194.30  13.20S
 153 30  0  -29  1 26  15 55 10       33  59  1.56 215.8 194.37  13.27S
 153 40  0  -29  7 45  15 55 39       33  59  1.55 215.9 194.44  13.34S
 153 50  0  -29 14  9  15 56  9       33  59  1.54 216.0 194.51  13.41S

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

                Librations  Long -2.64   Lat -3.07
                            P +194.6     D -2.1
      Illumination of moon  61%-
        Elongation of Moon  102
    Vertical Profile Scale  3.01 km/arcsec at mean distance of moon
   Horizontal Scale Factor  1.41 deg/min

Limiting Magnitudes for various telescope apertures (in mm)
      CA\Tdia  50   100   150   200   250   300   350
     9.4      5.6   7.0   7.8   8.3   8.6   8.9   9.0
    11.4      5.6   7.0   7.8   8.3   8.6   8.9   9.0
    13.4      5.6   7.0   7.8   8.3   8.7   8.9   9.1
    15.4      5.6   7.1   7.8   8.3   8.7   8.9   9.1
    17.4      5.6   7.1   7.8   8.3   8.7   8.9   9.1

Lunar Limb Profile for graze near Brisbane

Lunar Limb Profile