IOTA/IOTA-ES occultation update for
(487) Venetia / UCAC4 327-177556 event on 2024 Oct 16, 14:13 UT
Visible from
Summary
-------
On 2024 Oct 16 UT, the 62.643 km diameter asteroid (487) Venetia will occult a
11.9 mag star in the constellation Sagittarius for observers along a path
across .
In the case of an occultation, the combined light of the asteroid and the star
will drop by 1.94 mag to 13.61 mag (the magnitude of the asteroid) for at most
2.910 seconds.
This update is based on, astrometry for the asteroid kindly provided by the IAU
Minor Planet Center.
This work has made use of data from the European Space Agency (ESA)
mission Gaia (http://www.cosmos.esa.int/gaia), processed by the
Gaia Data Processing and Analysis Consortium
(DPAC, http://www.cosmos.esa.int/web/gaia/dpac/consortium).
Funding for the DPAC has been provided by national institutions, in
particular the institutions participating in the Gaia Multilateral Agreement.
The event at a glimpse
----------------------
* Rank: 100
* date and approx. time of event: 2024 Oct 16, 14:09 - 2024 Oct 16, 14:17
* geocentric midpoint of event [JD]: 2460600.09291937
* magnitude of target star: 11.87
* magnitude drop [mag]: 1.94
* estimated maximum duration [s]: 2.910
* Moon: 99 % sunlit, 87° distance
* Sun: 81° distance
* rough path description:
The occultation path
--------------------
* approximate projected width [km]: 80
* 1 sigma uncertainty interval [path widths]: +/- 0.05
* 1 sigma uncertainty interval [seconds]: +/- 0.8
* 1 sigma uncertainty interval approx RA,DE ["]: (+/- 0.009, +/- 0.002)
* 1 sigma uncertainty ellipse (major, minor, PA): (0.009", 0.001", 98°)
* approx speed of asteroid's shadow [km/s]: 21.5031
* website for maps:
http://www.asteroidoccultation.com
Path Coordinates:
Occultation of UCAC4 327-177556 by 487 Venetia on 2024 Oct 16
Centre Star Star Sun Path Limits Error Limits Alt
E. Longitude Latitude U.T. Alt Az Alt Limit 1 Limit 2 Limit 3 Limit 4 Crn
o ' " o ' " h m s o o o o ' " o ' " o ' " o ' "
Latitude Latitude Latitude Latitude
- 23 0 0 34 21 43 14 9 56.3 1 121 45 33 56 48 34 46 49 33 54 20 34 49 18 ....
- 22 0 0 33 52 35 14 9 56.5 2 121 45 33 27 42 34 17 37 33 25 15 34 20 7 -0.42
- 21 0 0 33 23 30 14 9 56.7 3 122 45 32 58 41 33 48 30 32 56 14 33 50 59 -0.56
- 20 0 0 32 54 31 14 9 57.0 4 122 45 32 29 44 33 19 27 32 27 17 33 21 56 -0.62
- 19 0 0 32 25 37 14 9 57.5 5 123 45 32 0 54 32 50 30 31 58 27 32 52 58 -0.65
- 18 0 0 31 56 50 14 9 58.0 5 124 45 31 32 10 32 21 40 31 29 44 32 24 8 -0.68
- 17 0 0 31 28 11 14 9 58.7 6 124 45 31 3 35 31 52 57 31 1 9 31 55 25 -0.69
- 16 0 0 30 59 41 14 9 59.4 7 125 46 30 35 8 31 24 24 30 32 42 31 26 51 -0.71
- 15 0 0 30 31 20 14 10 0.3 8 125 45 30 6 50 30 55 59 30 4 25 30 58 26 -0.72
- 14 0 0 30 3 10 14 10 1.3 9 126 45 29 38 44 30 27 45 29 36 19 30 30 12 -0.72
- 13 0 0 29 35 11 14 10 2.5 10 126 45 29 10 49 29 59 43 29 8 24 30 2 9 -0.73
- 12 0 0 29 7 25 14 10 3.7 11 127 45 28 43 6 29 31 52 28 40 42 29 34 18 -0.73
- 11 0 0 28 39 51 14 10 5.0 12 127 45 28 15 36 29 4 15 28 13 13 29 6 41 -0.74
- 10 0 0 28 12 32 14 10 6.5 13 128 45 27 48 21 28 36 52 27 45 57 28 39 17 -0.74
- 9 0 0 27 45 27 14 10 8.0 14 128 45 27 21 20 28 9 43 27 18 57 28 12 8 -0.75
- 8 0 0 27 18 38 14 10 9.7 15 129 44 26 54 35 27 42 50 26 52 12 27 45 15 -0.75
- 7 0 0 26 52 6 14 10 11.5 16 129 44 26 28 6 27 16 14 26 25 44 27 18 38 -0.75
- 6 0 0 26 25 50 14 10 13.4 17 130 44 26 1 55 26 49 55 25 59 33 26 52 18 -0.75
- 5 0 0 25 59 53 14 10 15.4 18 130 44 25 36 2 26 23 53 25 33 40 26 26 16 -0.76
- 4 0 0 25 34 15 14 10 17.5 19 131 43 25 10 27 25 58 11 25 8 6 26 0 33 -0.76
- 3 0 0 25 8 56 14 10 19.8 20 131 43 24 45 12 25 32 48 24 42 52 25 35 10 -0.76
- 2 0 0 24 43 57 14 10 22.1 21 132 42 24 20 17 25 7 45 24 17 57 25 10 6 -0.76
- 1 0 0 24 19 19 14 10 24.6 22 132 42 23 55 43 24 43 2 23 53 23 24 45 24 -0.76
0 0 0 23 55 2 14 10 27.1 23 133 42 23 31 30 24 18 42 23 29 11 24 21 3 -0.76
1 0 0 23 31 8 14 10 29.7 24 134 41 23 7 40 23 54 43 23 5 21 23 57 4 -0.77
2 0 0 23 7 36 14 10 32.5 25 134 41 22 44 12 23 31 8 22 41 54 23 33 28 -0.77
3 0 0 22 44 28 14 10 35.3 26 135 40 22 21 8 23 7 56 22 18 50 23 10 16 -0.77
4 0 0 22 21 44 14 10 38.3 27 135 40 21 58 28 22 45 8 21 56 10 22 47 27 -0.77
5 0 0 21 59 24 14 10 41.3 28 136 39 21 36 13 22 22 44 21 33 55 22 25 3 -0.77
6 0 0 21 37 30 14 10 44.5 29 136 38 21 14 22 22 0 46 21 12 5 22 3 5 -0.77
7 0 0 21 16 2 14 10 47.7 29 137 38 20 52 57 21 39 14 20 50 41 21 41 32 -0.77
8 0 0 20 54 59 14 10 51.0 30 138 37 20 31 59 21 18 7 20 29 42 21 20 25 -0.77
9 0 0 20 34 23 14 10 54.5 31 138 36 20 11 26 20 57 28 20 9 10 20 59 45 -0.77
10 0 0 20 14 15 14 10 58.0 32 139 36 19 51 21 20 37 16 19 49 6 20 39 33 -0.78
11 0 0 19 54 34 14 11 1.5 33 140 35 19 31 44 20 17 31 19 29 29 20 19 48 -0.78
12 0 0 19 35 20 14 11 5.2 34 140 34 19 12 34 19 58 14 19 10 19 20 0 31 -0.78
13 0 0 19 16 36 14 11 9.0 35 141 34 18 53 53 19 39 26 18 51 39 19 41 42 -0.78
14 0 0 18 58 20 14 11 12.8 36 142 33 18 35 41 19 21 7 18 33 26 19 23 22 -0.78
15 0 0 18 40 33 14 11 16.7 36 143 32 18 17 57 19 3 17 18 15 43 19 5 32 -0.78
16 0 0 18 23 16 14 11 20.7 37 143 31 18 0 43 18 45 56 17 58 30 18 48 11 -0.78
17 0 0 18 6 29 14 11 24.7 38 144 31 17 43 59 18 29 6 17 41 46 18 31 21 -0.78
18 0 0 17 50 12 14 11 28.9 39 145 30 17 27 45 18 12 46 17 25 32 18 15 0 -0.78
19 0 0 17 34 25 14 11 33.1 40 146 29 17 12 2 17 56 56 17 9 49 17 59 10 -0.78
20 0 0 17 19 10 14 11 37.3 40 147 28 16 56 49 17 41 37 16 54 37 17 43 51 -0.78
21 0 0 17 4 25 14 11 41.6 41 148 27 16 42 7 17 26 50 16 39 55 17 29 3 -0.78
22 0 0 16 50 11 14 11 46.0 42 148 27 16 27 56 17 12 34 16 25 45 17 14 47 -0.78
23 0 0 16 36 30 14 11 50.4 42 149 26 16 14 17 16 58 49 16 12 6 17 1 2 -0.79
24 0 0 16 23 20 14 11 54.9 43 150 25 16 1 10 16 45 36 15 58 59 16 47 49 -0.79
25 0 0 16 10 42 14 11 59.5 44 151 24 15 48 34 16 32 56 15 46 23 16 35 9 -0.79
26 0 0 15 58 36 14 12 4.1 44 152 23 15 36 31 16 20 48 15 34 20 16 23 0 -0.79
27 0 0 15 47 3 14 12 8.7 45 153 22 15 25 0 16 9 12 15 22 49 16 11 24 -0.79
28 0 0 15 36 2 14 12 13.4 46 155 21 15 14 2 15 58 9 15 11 51 16 0 21 -0.79
29 0 0 15 25 34 14 12 18.2 46 156 20 15 3 36 15 47 39 15 1 25 15 49 51 -0.79
30 0 0 15 15 39 14 12 23.0 47 157 20 14 53 43 15 37 43 14 51 33 15 39 54 -0.79
31 0 0 15 6 17 14 12 27.8 47 158 19 14 44 23 15 28 19 14 42 13 15 30 30 -0.79
32 0 0 14 57 29 14 12 32.6 48 159 18 14 35 36 15 19 28 14 33 26 15 21 39 -0.79
33 0 0 14 49 13 14 12 37.5 48 160 17 14 27 22 15 11 11 14 25 12 15 13 22 -0.79
34 0 0 14 41 31 14 12 42.5 49 162 16 14 19 42 15 3 28 14 17 32 15 5 38 -0.79
35 0 0 14 34 23 14 12 47.4 49 163 15 14 12 35 14 56 18 14 10 25 14 58 28 -0.79
36 0 0 14 27 48 14 12 52.4 49 164 14 14 6 1 14 49 42 14 3 52 14 51 52 -0.79
37 0 0 14 21 47 14 12 57.4 50 166 13 14 0 1 14 43 40 13 57 52 14 45 50 -0.79
38 0 0 14 16 20 14 13 2.4 50 167 12 13 54 35 14 38 11 13 52 26 14 40 21 -0.79
39 0 0 14 11 27 14 13 7.5 50 168 11 13 49 43 14 33 17 13 47 34 14 35 27 -0.79
40 0 0 14 7 7 14 13 12.6 51 170 10 13 45 25 14 28 57 13 43 16 14 31 7 -0.79
41 0 0 14 3 22 14 13 17.6 51 171 9 13 41 40 14 25 11 13 39 31 14 27 21 -0.79
42 0 0 14 0 11 14 13 22.7 51 173 8 13 38 29 14 21 59 13 36 21 14 24 9 -0.79
43 0 0 13 57 34 14 13 27.9 51 174 7 13 35 53 14 19 21 13 33 44 14 21 31 -0.79
44 0 0 13 55 31 14 13 33.0 51 176 6 13 33 50 14 17 18 13 31 42 14 19 28 -0.79
45 0 0 13 54 2 14 13 38.1 51 177 5 13 32 22 14 15 49 13 30 13 14 17 58 -0.79
46 0 0 13 53 7 14 13 43.2 52 179 4 13 31 27 14 14 54 13 29 19 14 17 4 -0.79
47 0 0 13 52 47 14 13 48.4 52 180 3 13 31 7 14 14 33 13 28 58 14 16 43 -0.79
48 0 0 13 53 1 14 13 53.5 52 182 2 13 31 21 14 14 47 13 29 12 14 16 57 -0.79
49 0 0 13 53 48 14 13 58.6 51 183 2 13 32 8 14 15 35 13 30 0 14 17 45 -0.80
50 0 0 13 55 11 14 14 3.8 51 185 1 13 33 30 14 16 57 13 31 22 14 19 7 -0.80
51 0 0 13 57 7 14 14 8.9 51 186 0 13 35 26 14 18 54 13 33 17 14 21 4 -0.80
52 0 0 13 59 37 14 14 14.0 51 188 -1 13 37 56 14 21 25 13 35 47 14 23 35 -0.80
53 0 0 14 2 42 14 14 19.1 51 189 -2 13 41 0 14 24 30 13 38 51 14 26 40 -0.80
54 0 0 14 6 20 14 14 24.2 51 190 -3 13 44 37 14 28 9 13 42 29 14 30 19 -0.80
55 0 0 14 10 33 14 14 29.2 50 192 -4 13 48 49 14 32 23 13 46 40 14 34 33 -0.80
56 0 0 14 15 19 14 14 34.3 50 193 -5 13 53 35 14 37 10 13 51 26 14 39 20 -0.80
57 0 0 14 20 40 14 14 39.3 50 195 -6 13 58 54 14 42 32 13 56 45 14 44 42 -0.80
58 0 0 14 26 34 14 14 44.3 49 196 -7 14 4 47 14 48 27 14 2 38 14 50 38 -0.80
59 0 0 14 33 2 14 14 49.3 49 197 -8 14 11 14 14 54 57 14 9 5 14 57 7 -0.80
60 0 0 14 40 4 14 14 54.3 49 199 -9 14 18 14 15 2 0 14 16 5 15 4 11 -0.80
61 0 0 14 47 39 14 14 59.2 48 200 -10 14 25 48 15 9 37 14 23 39 15 11 48 -0.80
62 0 0 14 55 48 14 15 4.1 48 201 -11 14 33 55 15 17 47 14 31 45 15 19 58 -0.80
63 0 0 15 4 30 14 15 8.9 47 202 -12 14 42 35 15 26 31 14 40 26 15 28 42 -0.80
64 0 0 15 13 45 14 15 13.7 47 203 -13 14 51 49 15 35 48 14 49 39 15 37 59 -0.80
65 0 0 15 23 33 14 15 18.5 46 205 -14 15 1 35 15 45 38 14 59 25 15 47 50 -0.80
66 0 0 15 33 55 14 15 23.3 46 206 -15 15 11 55 15 56 2 15 9 44 15 58 14 -0.80
67 0 0 15 44 49 14 15 27.9 45 207 -16 15 22 47 16 6 58 15 20 36 16 9 10 -0.80
68 0 0 15 56 16 14 15 32.6 44 208 -17 15 34 11 16 18 27 15 32 0 16 20 39 -0.80
69 0 0 16 8 15 14 15 37.2 44 209 -18 15 46 8 16 30 29 15 43 57 16 32 41 -0.80
70 0 0 16 20 46 14 15 41.7 43 210 -19 15 58 37 16 43 3 15 56 26 16 45 15 -0.80
71 0 0 16 33 50 14 15 46.2 42 211 -20 16 11 38 16 56 9 16 9 27 16 58 22 -0.80
72 0 0 16 47 25 14 15 50.6 42 212 -21 16 25 11 17 9 47 16 22 59 17 12 0 -0.80
73 0 0 17 1 32 14 15 55.0 41 213 -22 16 39 15 17 23 57 16 37 3 17 26 10 -0.80
74 0 0 17 16 11 14 15 59.3 40 214 -23 16 53 51 17 38 38 16 51 38 17 40 52 -0.80
75 0 0 17 31 20 14 16 3.6 39 214 -24 17 8 57 17 53 50 17 6 45 17 56 4 -0.80
76 0 0 17 47 0 14 16 7.8 39 215 -25 17 24 34 18 9 33 17 22 22 18 11 48 -0.80
77 0 0 18 3 11 14 16 11.9 38 216 -26 17 40 42 18 25 47 17 38 29 18 28 2 -0.80
78 0 0 18 19 52 14 16 15.9 37 217 -27 17 57 20 18 42 32 17 55 7 18 44 47 -0.80
79 0 0 18 37 3 14 16 19.9 36 218 -28 18 14 28 18 59 46 18 12 14 19 2 1 -0.80
80 0 0 18 54 44 14 16 23.8 36 218 -29 18 32 5 19 17 30 18 29 51 19 19 46 -0.80
81 0 0 19 12 54 14 16 27.6 35 219 -30 18 50 12 19 35 43 18 47 57 19 37 59 -0.80
82 0 0 19 31 33 14 16 31.4 34 220 -31 19 8 47 19 54 26 19 6 32 19 56 42 -0.80
83 0 0 19 50 40 14 16 35.1 33 220 -32 19 27 51 20 13 36 19 25 36 20 15 53 -0.79
84 0 0 20 10 15 14 16 38.6 32 221 -33 19 47 23 20 33 15 19 45 7 20 35 32 -0.79
85 0 0 20 30 18 14 16 42.1 31 222 -34 20 7 22 20 53 22 20 5 6 20 55 39 -0.79
86 0 0 20 50 48 14 16 45.5 30 222 -35 20 27 48 21 13 56 20 25 32 21 16 14 -0.79
87 0 0 21 11 45 14 16 48.9 29 223 -36 20 48 42 21 34 57 20 46 25 21 37 15 -0.79
88 0 0 21 33 8 14 16 52.1 29 224 -37 21 10 1 21 56 24 21 7 44 21 58 42 -0.79
89 0 0 21 54 57 14 16 55.2 28 224 -38 21 31 46 22 18 17 21 29 29 22 20 36 -0.79
90 0 0 22 17 12 14 16 58.3 27 225 -38 21 53 57 22 40 35 21 51 39 22 42 54 -0.79
91 0 0 22 39 51 14 17 1.2 26 225 -39 22 16 32 23 3 18 22 14 14 23 5 37 -0.79
92 0 0 23 2 54 14 17 4.0 25 226 -40 22 39 31 23 26 25 22 37 12 23 28 45 -0.79
93 0 0 23 26 20 14 17 6.8 24 227 -41 23 2 53 23 49 55 23 0 35 23 52 16 -0.80
94 0 0 23 50 10 14 17 9.4 23 227 -42 23 26 39 24 13 49 23 24 20 24 16 10 -0.80
95 0 0 24 14 22 14 17 12.0 22 228 -43 23 50 47 24 38 5 23 48 28 24 40 26 -0.80
96 0 0 24 38 55 14 17 14.4 21 228 -44 24 15 17 25 2 42 24 12 56 25 5 4 -0.80
97 0 0 25 3 50 14 17 16.7 20 229 -44 24 40 7 25 27 41 24 37 47 25 30 3 -0.80
98 0 0 25 29 4 14 17 19.0 19 229 -45 25 5 18 25 53 0 25 2 57 25 55 22 -0.80
99 0 0 25 54 39 14 17 21.1 18 230 -46 25 30 48 26 18 38 25 28 27 26 21 1 -0.80
100 0 0 26 20 32 14 17 23.1 17 230 -47 25 56 38 26 44 35 25 54 16 26 46 59 -0.80
101 0 0 26 46 44 14 17 25.0 16 231 -47 26 22 45 27 10 51 26 20 23 27 13 15 -0.80
102 0 0 27 13 12 14 17 26.8 15 231 -48 26 49 10 27 37 24 26 46 48 27 39 48 -0.80
103 0 0 27 39 58 14 17 28.4 14 232 -49 27 15 52 28 4 13 27 13 29 28 6 38 -0.80
104 0 0 28 6 59 14 17 30.0 13 232 -50 27 42 49 28 31 19 27 40 26 28 33 44 -0.80
105 0 0 28 34 16 14 17 31.4 12 233 -50 28 10 2 28 58 39 28 7 38 29 1 4 -0.80
106 0 0 29 1 46 14 17 32.8 11 233 -51 28 37 28 29 26 13 28 35 4 29 28 39 -0.80
107 0 0 29 29 30 14 17 34.0 10 234 -52 29 5 8 29 54 1 29 2 44 29 56 27 -0.80
108 0 0 29 57 26 14 17 35.1 9 234 -52 29 33 0 30 22 0 29 30 36 30 24 27 -0.80
109 0 0 30 25 33 14 17 36.1 8 235 -53 30 1 4 30 50 12 29 58 39 30 52 39 -0.81
110 0 0 30 53 52 14 17 37.0 7 235 -53 30 29 19 31 18 34 30 26 54 31 21 1 -0.81
111 0 0 31 22 20 14 17 37.7 6 236 -54 30 57 44 31 47 5 30 55 18 31 49 33 -0.81
112 0 0 31 50 57 14 17 38.4 5 237 -54 31 26 18 32 15 46 31 23 52 32 18 14 -0.82
113 0 0 32 19 42 14 17 39.0 4 237 -55 31 54 59 32 44 34 31 52 33 32 47 3 -0.82
114 0 0 32 48 34 14 17 39.4 3 238 -55 32 23 48 33 13 30 32 21 21 33 15 58 -0.83
115 0 0 33 17 32 14 17 39.7 3 238 -55 32 52 43 33 42 31 32 50 16 33 45 0 -0.85
116 0 0 33 46 35 14 17 39.9 2 239 -56 33 21 43 34 11 37 33 19 16 34 14 6 -0.89
117 0 0 34 15 43 14 17 40.0 1 239 -56 33 50 48 34 40 48 33 48 20 34 43 17 -1.07
Uncertainty in time = +/- 1 secs
Prediction of 2023 Jul 15.6
Data for the target star
------------------------
* name: UCAC4 327-177556
* constellation : Sagittarius
* BCRS position with proper motion to date of event [h,m,s ; °,',"]
RA: 19 02 18.7935 DE: -24 42 28.990
* GCRS Astrometric position with proper motion and parallax to date of event [h,m,s ; °,',"]
RA: 19 02 18.7933 DE: -24 42 28.990
* position source: Gaia DR3
* standard error: RA,DE [mas]: (0.200,0.100)
* V mag [mag]: 11.9
* B mag [mag]: 12.2
* Diameter [mas]: 0.00
* remarks:
Data for the minor planet
-------------------------
* general information:
(number) name: (487) Venetia
asteroid class:
approx. diameter [km]: 63
approx. diameter ["]: 0.033
distance from Earth [AU]: 2.62210
asteroid position offset in RA [mas]: 0
asteroid position offset in DE [mas]: 0
* orbital information:
orbit source: JPL#109
date of fit: 2023 Apr 24
source of used astrometry: MPC, JPL
number of used observations: 0
number of rejected observations: 0
time covered by the observations: 1800 Jan 01 - 1800 Jan 01
1 sigma uncertainty ellipse (major, minor, PA): 0.009", 0.001", 97.76°
remarks:
* orbital elements for (487)Venetia :
Mean anomaly = 279.5276072673 deg
Arg. of pericenter = 281.7013470878 deg
Long. of node = 114.7513085381 deg
Inclination = 10.2530917975 deg
Eccentricity = 0.0862697983
Semimajor axis = 2.6699536872 AU
Perihelion dist = 2.4396173213 AU
Mag: H = 8.34, G = 0.15
Epoch of elements : MJD 60599.59291904 TDT
(2024 Oct 16.5929)
------ occelmnt file for Occult BEGIN -----------------------------------
<Occultations>
<Event>
<Elements>JPL#1092023Apr24,2.91,2024,10,16,14.230065,0.000990,0.621900,12.136938,-0.016558,0.005599,0.000583,0.000000,0.000000</Elements>
<Earth>46.9160,-24.6735,-37.09,-9.20,False</Earth>
<Star>UCAC4 327-177556,19.03855377,-24.7080528,12.20,11.87,11.69,0.0,0,K,19.06369315,-24.6735003,1.94,1.71,0,0,0</Star>
<Object>487,Venetia,13.61,62.643,2.6221,0,0,2.986,-0.05,,3.2,0</Object>
<Orbit>0,279.3937,2024,10,16,281.7013,114.7513,10.2531,0.08627,2.66995,2.43962,8.34,5.0,0.15</Orbit>
<Errors>1.050,0.0090,0.0011,98,0.0016,Known errors,0.91,0,-1,-1</Errors>
<ID>20241016_177556,60140.64</ID>
</Event>
</Occultations>
------ occelmnt file for Occult END -----------------------------------
============================================
Calculator (s): Steve Preston
Date of update: 2023 Jul 15, 15:19 UT
Steve Preston
7640 NE 32nd St
Medina, WA 98039
stevepr@acm.org