Predictions for Grazing Occultation of ZC 2247 2015 Jun 1

Graze profile
Grazing Occultation of    2247 A6      Magnitude 5.4 [Red = 5.3]   
   R2247 = eta Librae
Date: 2015 Jun 01 15h 16m,  to  2015 Jun 01 15h 28m

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  -42 47 41  15 15 41       40 287  1.19 187.1 173.31  23.14S
 167 30  0  -42 44 32  15 16 16       40 286  1.21 187.0 173.24  23.22S
 168  0  0  -42 41 16  15 16 50       39 286  1.23 186.9 173.16  23.29S
 168 30  0  -42 37 55  15 17 24       39 285  1.25 186.9 173.08  23.37S
 169  0  0  -42 34 27  15 17 58       38 285  1.27 186.8 173.01  23.44S
 169 30  0  -42 30 53  15 18 32       38 284  1.29 186.7 172.93  23.52S
 170  0  0  -42 27 13  15 19  5       37 284  1.31 186.6 172.86  23.59S
 170 30  0  -42 23 27  15 19 37       37 283  1.33 186.6 172.79  23.66S
 171  0  0  -42 19 35  15 20 10       36 282  1.35 186.5 172.72  23.73S
 171 30  0  -42 15 37  15 20 41       36 282  1.37 186.4 172.64  23.80S
 172  0  0  -42 11 33  15 21 13       36 281  1.40 186.4 172.57  23.87S
 172 30  0  -42  7 23  15 21 44       35 281  1.42 186.3 172.51  23.94S
 173  0  0  -42  3  8  15 22 15       35 280  1.44 186.2 172.44  24.01S
 173 30  0  -41 58 47  15 22 46       34 280  1.47 186.2 172.37  24.07S
 174  0  0  -41 54 21  15 23 16       34 279  1.49 186.1 172.30  24.14S
 174 30  0  -41 49 49  15 23 46       33 279  1.52 186.0 172.24  24.20S
 175  0  0  -41 45 11  15 24 15       33 278  1.54 186.0 172.17  24.27S
 175 30  0  -41 40 28  15 24 44       32 278  1.57 185.9 172.11  24.33S
 176  0  0  -41 35 39  15 25 13       32 277  1.60 185.8 172.05  24.39S
 176 30  0  -41 30 45  15 25 41       32 277  1.63 185.8 171.98  24.45S
 177  0  0  -41 25 46  15 26  9       31 276  1.66 185.7 171.92  24.51S
 177 30  0  -41 20 41  15 26 36       31 276  1.69 185.7 171.86  24.57S
 178  0  0  -41 15 31  15 27  3       30 275  1.72 185.6 171.80  24.63S
 178 30  0  -41 10 16  15 27 30       30 275  1.75 185.5 171.74  24.69S
 179  0  0  -41  4 56  15 27 57       29 274  1.78 185.5 171.69  24.75S

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.


    C A S S I N I   R E G I O N   G R A Z E
                Librations  Long -5.82   Lat -5.44
                            P +172.96     D -5.90
      Illumination of moon  99%+
        Elongation of Moon  166
    Vertical Profile Scale  2.06 km/arcsec at mean distance of moon
   Horizontal Scale Factor  1.62 deg/min


At longitude 173.00:
Limiting Magnitudes for various telescope apertures (in cm)
      CA\Tdia   5    10    15    20    25    30    35
    20.0      4.3   5.7   6.4   6.9   7.2   7.4   7.5
    22.0      4.3   5.7   6.4   6.9   7.2   7.4   7.6
    24.0      4.3   5.7   6.4   6.9   7.2   7.4   7.6
    26.0      4.3   5.7   6.4   6.9   7.2   7.4   7.6
    28.0      4.3   5.7   6.4   6.9   7.2   7.4   7.6

------------------------------------------------------------------------------
Results of Observer Scan                                    UT
Site                              Long.   Lat.   Dist.    h  m  s
Chch graze                        172.6  -43.5   156km   15 21 53
MidNZ                             173.0  -41.0   115km   15 22 15
Wellington                        174.8  -41.3    53km   15 24  3

 

Lunar Limb Profile

Lunar Limb Profile