Predictions for Grazing Occultation of R 2571, 2013 Sep 13
Graze profile
Grazing Occultation of 2571 A9 Magnitude 6.8 [Red = 6.6]
Date: 2013 Sep 13 6h 59m, to 2013 Sep 13 7h 3m
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 -34 55 9 6 58 42 -8 75 357 0.27 175.7 173.97 5.56S
172 10 0 -34 54 28 6 59 2 -9 75 356 0.27 175.7 173.92 5.60S
172 20 0 -34 53 45 6 59 22 -9 75 355 0.27 175.6 173.87 5.65S
172 30 0 -34 53 1 6 59 43 -9 75 354 0.27 175.6 173.83 5.70S
172 40 0 -34 52 15 7 0 3 -9 75 353 0.27 175.6 173.78 5.75S
172 50 1 -34 51 29 7 0 24 -9 75 352 0.27 175.5 173.73 5.79S
173 0 1 -34 50 41 7 0 44 -10 75 351 0.27 175.5 173.68 5.84S
173 10 1 -34 49 53 7 1 5 -10 75 350 0.27 175.4 173.64 5.89S
173 20 1 -34 49 3 7 1 25 -10 75 349 0.27 175.4 173.59 5.93S
173 30 1 -34 48 11 7 1 46 -10 75 348 0.27 175.3 173.54 5.98S
173 40 1 -34 47 19 7 2 6 -10 75 348 0.28 175.3 173.49 6.03S
173 50 1 -34 46 25 7 2 27 -11 75 347 0.28 175.2 173.45 6.08S
174 0 1 -34 45 31 7 2 47 -11 75 346 0.28 175.2 173.40 6.12S
Path coordinates are referred to WGS84 (as used by GPS), with the
nominal site altitude being referenced to Mean Sea Level.
C A S S I N I R E G I O N G R A Z E
Librations Long -2.12 Lat -5.31
P +173.85 D -5.25
Illumination of moon 57%+
Elongation of Moon 98
Vertical Profile Scale 1.93 km/arcsec at mean distance of moon
Horizontal Scale Factor 1.34 deg/min
At longitude 173.00:
Limiting Magnitudes for various telescope apertures (in cm)
CA\Tdia 5 10 15 20 25 30 35
1.8 5.0 6.5 7.3 7.8 8.2 8.4 8.7
3.8 5.0 6.5 7.3 7.8 8.2 8.5 8.7
5.8 5.9 7.3 8.2 8.7 9.1 9.4 9.6
7.8 5.9 7.3 8.2 8.7 9.1 9.4 9.6
9.8 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
Auckland 174.8 -36.9 244km 7 4 25
MidNZ 173.0 -41.0 679km 7 0 44
Lunar Limb Profile
