Predictions for Grazing Occultation of ZC2674, 2015 Oct 19

Graze profile
Grazing Occultation of    2674 B8      Magnitude 6.2 [Red = 6.2]  s
Date: 2015 Oct 19  8h 30m,  to  2015 Oct 19  8h 47m

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 47 38   8 30  9  -12  44 292  1.05 171.9 174.95   3.31S
 167 30  0  -45 38 42   8 30 53       43 291  1.06 171.8 174.90   3.36S
 168  0  0  -45 29 40   8 31 37       43 290  1.08 171.8 174.85   3.41S
 168 30  0  -45 20 32   8 32 21       42 289  1.09 171.7 174.80   3.46S
 169  0  0  -45 11 18   8 33  4       42 289  1.11 171.7 174.75   3.51S
 169 30  0  -45  1 58   8 33 47       42 288  1.12 171.6 174.70   3.56S
 170  0  0  -44 52 33   8 34 30       41 287  1.14 171.6 174.66   3.60S
 170 30  0  -44 43  2   8 35 13       41 286  1.16 171.5 174.61   3.65S
 171  0  0  -44 33 26   8 35 55       40 286  1.18 171.5 174.57   3.69S
 171 30  0  -44 23 45   8 36 37       40 285  1.19 171.5 174.52   3.74S
 172  0  0  -44 13 59   8 37 19       40 284  1.21 171.4 174.48   3.78S
 172 30  0  -44  4  7   8 38  1       39 284  1.23 171.4 174.44   3.82S
 173  0  0  -43 54 11   8 38 42       39 283  1.25 171.3 174.40   3.86S
 173 30  0  -43 44  9   8 39 24       38 282  1.27 171.3 174.36   3.90S
 174  0  0  -43 34  3   8 40  4       38 282  1.29 171.3 174.33   3.93S
 174 30  0  -43 23 53   8 40 45       37 281  1.31 171.2 174.29   3.97S
 175  0  0  -43 13 38   8 41 25       37 280  1.33 171.2 174.25   4.00S
 175 30  0  -43  3 18   8 42  5       36 280  1.35 171.2 174.22   4.04S
 176  0  0  -42 52 55   8 42 44       36 279  1.38 171.1 174.19   4.07S
 176 30  0  -42 42 27   8 43 23       36 278  1.40 171.1 174.16   4.10S
 177  0  0  -42 31 55   8 44  2       35 278  1.42 171.1 174.13   4.13S
 177 30  0  -42 21 20   8 44 40       35 277  1.45 171.0 174.10   4.16S
 178  0  0  -42 10 41   8 45 18       34 277  1.47 171.0 174.07   4.19S
 178 30  0  -41 59 58   8 45 56       34 276  1.50 171.0 174.04   4.21S
 179  0  0  -41 49 12   8 46 33       33 275  1.53 171.0 174.02   4.24S

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.

2674 is variable: 
      2674 = NSV 10835, 6.17 to 6.20, V


    C A S S I N I   R E G I O N   G R A Z E
                Librations  Long -7.39   Lat -7.25
                            P +175.30     D -7.68
      Illumination of moon  34%+
        Elongation of Moon  71
    Vertical Profile Scale  2.23 km/arcsec at mean distance of moon
   Horizontal Scale Factor  1.61 deg/min


At longitude 173.00:
Limiting Magnitudes for various telescope apertures (in cm)
      CA\Tdia   5    10    15    20    25    30    35
    -0.1      3.2   4.7   5.4   5.9   6.2   6.4   6.5
     1.9      5.1   6.5   7.3   7.8   8.2   8.4   8.6
     3.9      5.1   6.5   7.3   7.8   8.2   8.4   8.6
     5.9      5.9   7.3   8.2   8.7   9.1   9.3   9.6
     7.9      5.9   7.4   8.2   8.7   9.1   9.4   9.6

------------------------------------------------------------------------------
Results of Observer Scan                                    UT
Site                              Long.   Lat.   Dist.    h  m  s
Chch graze                        172.6  -43.5    49km    8 38 12
Dunedin                           170.5  -45.9   117km    8 35 12
MidNZ                             173.0  -41.0   295km    8 38 42
Wellington                        174.8  -41.3   201km    8 41  9

 

Lunar Limb Profile

Lunar Limb Profile