Predictions for Grazing Occultation of ZC2646, 2015 Nov 15

Graze profile
Grazing Occultation of    2646 K2      Magnitude 5.8 [Red = 5.0]   
Date: 2015 Nov 15  9h 40m,  to  2015 Nov 15  9h 43m

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
 167  0  0  -45 53 53   9 40 12       11 257  5.07 353.2 355.17   1.42N
 167 30  0  -45 43  6   9 40 25       11 256  5.27 353.2 355.19   1.44N
 168  0  0  -45 32 20   9 40 37       10 256  5.48 353.2 355.19   1.45N
 168 30  0  -45 21 35   9 40 48       10 255  5.72 353.2 355.20   1.45N
 169  0  0  -45 10 52   9 40 59        9 255  5.98 353.2 355.21   1.46N
 169 30  0  -45  0 10   9 41 10        9 255  6.26 353.2 355.21   1.47N
 170  0  0  -44 49 30   9 41 20        9 254  6.56 353.2 355.22   1.48N
 170 30  0  -44 38 51   9 41 30        8 254  6.90 353.2 355.23   1.49N
 171  0  0  -44 28 14   9 41 39        8 253  7.28 353.3 355.24   1.50N
 171 30  0  -44 17 39   9 41 47        7 253  7.69 353.3 355.25   1.51N
 172  0  0  -44  7  6   9 41 55        7 253  8.16 353.3 355.26   1.52N
 172 30  0  -43 56 35   9 42  3        7 252  8.68 353.3 355.27   1.53N
 173  0  0  -43 46  6   9 42 10        6 252  9.27 353.3 355.29   1.54N
 173 30  0  -43 35 39   9 42 16        6 252  9.95 353.3 355.30   1.55N
 174  0  0  -43 25 14   9 42 22        5 251 10.74 353.3 355.31   1.57N
 174 30  0  -43 14 51   9 42 28        5 251 11.66 353.3 355.33   1.58N
 175  0  0  -43  4 30   9 42 33        4 250 12.74 353.4 355.34   1.59N
 175 30  0  -42 54 12   9 42 38        4 250 14.05 353.4 355.35   1.61N
 176  0  0  -42 43 56   9 42 42        4 250 15.66 353.4 355.36   1.61N
 176 30  0  -42 33 42   9 42 45        3 249 17.67 353.4 355.37   1.62N
 177  0  0  -42 23 31   9 42 49        3 249 20.27 353.4 355.38   1.64N
 177 30  0  -42 13 21   9 42 51        2 249 23.76 353.4 355.40   1.65N
 178  0  0  -42  3 13   9 42 54        2 248 28.69 353.4 355.41   1.67N
 178 30  0  -41 53  8   9 42 55        2 248 36.19 353.4 355.43   1.68N
 179  0  0  -41 43  3   9 42 57        1 248 48.98 353.5 355.45   1.70N

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  8 meters  [Estimated]


                Librations  Long -6.24   Lat -7.27
                            P +356.09     D +8.02
      Illumination of moon  13%+
        Elongation of Moon  42
    Vertical Profile Scale  2.62 km/arcsec at mean distance of moon
   Horizontal Scale Factor  2.11 deg/min


At longitude 173.00:
Limiting Magnitudes for various telescope apertures (in cm)
      CA\Tdia   5    10    15    20    25    30    35
    -2.5      2.0   3.2   3.6   3.9   4.0   4.1   4.1
    -0.5      2.0   3.2   3.6   3.9   4.0   4.1   4.1
     1.5      4.4   5.8   6.5   6.9   7.2   7.4   7.6
     3.5      4.5   5.9   6.6   7.0   7.3   7.5   7.7
     5.5      4.5   5.9   6.6   7.0   7.3   7.6   7.7

------------------------------------------------------------------------------
Results of Observer Scan                                    UT
Site                              Long.   Lat.   Dist.    h  m  s
Chch graze                        172.6  -43.5    36km    9 42  5
Dunedin                           170.5  -45.9   121km    9 41 29

 

Lunar Limb Profile

Lunar Limb Profile