Predictions for Grazing Occultation of R 203, 2013 Jul 28
Graze profile
Grazing Occultation of 203 K0 Magnitude 6.8 [Red = 6.2]
Date: 2013 Jul 28 15h 27m, to 2013 Jul 28 15h 31m
Nominal site altitude 100m
E. Longit. Latitude U.T. Sun Moon TanZ PA AA CA
o ' " o ' " h m s Alt Alt Az o o o
172 0 0 -35 42 1 15 27 18 35 38 1.44 332.4 355.69 5.31N
172 10 0 -35 36 44 15 27 35 35 37 1.43 332.4 355.66 5.34N
172 20 0 -35 31 26 15 27 52 35 37 1.42 332.3 355.63 5.37N
172 30 0 -35 26 6 15 28 9 35 37 1.41 332.3 355.60 5.40N
172 40 0 -35 20 46 15 28 27 36 37 1.40 332.3 355.58 5.42N
172 50 1 -35 15 25 15 28 44 36 36 1.39 332.3 355.55 5.45N
173 0 1 -35 10 3 15 29 2 36 36 1.38 332.2 355.53 5.48N
173 10 1 -35 4 40 15 29 20 36 36 1.37 332.2 355.50 5.50N
173 20 1 -34 59 16 15 29 38 36 36 1.36 332.2 355.47 5.53N
173 30 1 -34 53 50 15 29 56 37 36 1.35 332.2 355.45 5.55N
173 40 1 -34 48 24 15 30 14 37 35 1.34 332.1 355.42 5.58N
173 50 1 -34 42 57 15 30 32 37 35 1.33 332.1 355.40 5.61N
174 0 1 -34 37 29 15 30 51 37 35 1.32 332.1 355.37 5.63N
Path coordinates are referred to WGS84 (as used by GPS), with the
nominal site altitude being referenced to Mean Sea Level.
Projected diameter of star 2 meters [Estimated]
Librations Long +8.05 Lat -2.70
P +355.15 D +2.32
Illumination of moon 60%-
Elongation of Moon 102
Vertical Profile Scale 2.23 km/arcsec at mean distance of moon
Horizontal Scale Factor 1.41 deg/min
At longitude 173.00:
Limiting Magnitudes for various telescope apertures (in cm)
CA\Tdia 5 10 15 20 25 30 35
1.5 4.8 6.2 7.0 7.4 7.8 8.0 8.2
3.5 4.8 6.2 7.0 7.5 7.8 8.0 8.2
5.5 5.6 7.0 7.8 8.3 8.7 8.9 9.1
7.5 5.6 7.1 7.8 8.3 8.7 8.9 9.1
9.5 5.6 7.1 7.8 8.3 8.7 8.9 9.1
------------------------------------------------------------------------------
Results of Observer Scan UT
Site Long. Lat. Dist. h m s
Auckland 174.8 -36.9 247km 15 32 21
Lunar Limb Profile
