Predictions for Grazing Occultation of ZC2015, 2015 May 9

Graze profile
Grazing Occultation of    2880 F3      Magnitude 5.1 [Red = 4.9]   
   R2880 = 55 Sagittarii
Date: 2015 May 09 13h 10m,  to  2015 May 09 13h 22m

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  -41 15 53  13  9 58       30  86  1.75 175.5 186.00   7.91S
 167 30  0  -41 21 36  13 10 25       30  85  1.72 175.5 185.94   7.85S
 168  0  0  -41 27 14  13 10 51       31  85  1.69 175.4 185.89   7.80S
 168 30  0  -41 32 47  13 11 18       31  84  1.66 175.3 185.83   7.74S
 169  0  0  -41 38 14  13 11 46       31  84  1.63 175.3 185.78   7.69S
 169 30  0  -41 43 37  13 12 13       32  83  1.60 175.2 185.72   7.63S
 170  0  0  -41 48 55  13 12 42       32  83  1.58 175.2 185.66   7.57S
 170 30  0  -41 54  7  13 13 10       33  82  1.55 175.1 185.60   7.51S
 171  0  0  -41 59 14  13 13 39       33  82  1.52 175.1 185.54   7.45S
 171 30  0  -42  4 16  13 14  8       34  81  1.50 175.0 185.48   7.39S
 172  0  0  -42  9 12  13 14 37       34  81  1.47 174.9 185.42   7.33S
 172 30  0  -42 14  3  13 15  7       35  80  1.45 174.9 185.36   7.27S
 173  0  0  -42 18 48  13 15 37       35  80  1.43 174.8 185.30   7.21S
 173 30  0  -42 23 27  13 16  8       35  79  1.40 174.8 185.23   7.14S
 174  0  0  -42 28  1  13 16 39       36  79  1.38 174.7 185.17   7.08S
 174 30  0  -42 32 30  13 17 10       36  78  1.36 174.6 185.10   7.01S
 175  0  0  -42 36 52  13 17 42       37  78  1.34 174.6 185.04   6.95S
 175 30  0  -42 41  9  13 18 14       37  77  1.31 174.5 184.97   6.88S
 176  0  0  -42 45 20  13 18 46       38  76  1.29 174.4 184.90   6.81S
 176 30  0  -42 49 25  13 19 18       38  76  1.27 174.4 184.83   6.74S
 177  0  0  -42 53 25  13 19 51       39  75  1.25 174.3 184.76   6.67S
 177 30  0  -42 57 18  13 20 24       39  75  1.23 174.2 184.69   6.60S
 178  0  0  -43  1  5  13 20 58       39  74  1.22 174.1 184.62   6.53S
 178 30  0  -43  4 46  13 21 32       40  74  1.20 174.1 184.55   6.46S
 179  0  0  -43  8 21  13 22  6       40  73  1.18 174.0 184.48   6.39S

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  1 meters  [CHARM/CADARS, 1 measures]


    C A S S I N I   R E G I O N   G R A Z E
                Librations  Long -4.12   Lat -6.88
                            P +185.79     D -6.21
      Illumination of moon  70%-
        Elongation of Moon  114
    Vertical Profile Scale  2.07 km/arcsec at mean distance of moon
   Horizontal Scale Factor  1.67 deg/min


At longitude 173.00:
Limiting Magnitudes for various telescope apertures (in cm)
      CA\Tdia   5    10    15    20    25    30    35
     3.2      4.7   6.1   6.9   7.3   7.6   7.9   8.0
     5.2      4.7   6.1   6.9   7.4   7.7   7.9   8.1
     7.2      5.5   6.9   7.7   8.2   8.5   8.8   8.9
     9.2      5.5   7.0   7.7   8.2   8.6   8.8   9.0
    11.2      5.5   7.0   7.7   8.2   8.6   8.8   9.0

------------------------------------------------------------------------------
Results of Observer Scan                                    UT
Site                              Long.   Lat.   Dist.    h  m  s
Chch graze                        172.6  -43.5   139km   13 15 16
MidNZ                             173.0  -41.0   143km   13 15 38
Wellington                        174.8  -41.3   140km   13 17 29

 

Lunar Limb Profile

Lunar Limb Profile