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发表于 2006-3-14 13:20
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查看: 2922 |
回复: 10来自： 北京市 鹏博士BGP
时间：2006.04.02（初五，月亮不影响观测）13:35 UT
观测等级：95
小行星：160号Una 14.4等
被掩星：TYC 1869-00648-1 10.1等
详情：
http://www.asteroidoccultation.com/2006_04/0402_160_6056.htm
IOTA/IOTA-ES occultation update for
(160) Una / TYC 1869-00648-1 event on 2006 Apr 02, 13:35 UT
Visible from SE China
Summary
-------
On 2006 Apr 02 UT, the 81 km diameter asteroid (160) Una will occult a 10.1 mag
star in the constellation Taurus for observers along a path across SE China.
In the case of an occultation, the combined light of the asteroid and the star
will drop by 4.3 mag to 14.4 mag (the magnitude of the asteroid) for at most 3.1
seconds.
This update is based on UNSO/Flagstaff astrometry for the asteroid kindly
provided by Ron Stone, historical astrometry from the MPC files (via AstDys),
and the following catalogs for the star position: UCAC.
The event at a glimpse
----------------------
* Rank: 95
* date and approx. time of event: 2006 Apr 02, 13:31 - 2006 Apr 02, 13:39 UT
* midpoint of event [JD]: 2453828.06644167
* magnitude of target star: 10.1
* magnitude drop [mag]: 4.3
* estimated maximum duration : 3.1
* Moon: 22 % sunlit, 17?distance
* Sun: 72?distance
* rough path description: SE China
The occultation path
--------------------
* approximate projected width [km]: 82
* 1 sigma uncertainty interval [path widths]: +/- 0.44
* 1 sigma uncertainty interval [seconds]: +/- 1.4
* 1 sigma uncertainty interval approx RA,DE ["]: (+/- .021 +/- .018)
* 1 sigma uncertainty ellipse (major, minor, PA): ( .021", .018", 89?)
* approx speed of asteroid's shadow [km/s]: 26.5409
* website for maps:
http://lunar-occultations.com/iota/asteroids/astrndx.htm
http://www.asteroidoccultation.com
Path Coordinates:
Occultation of TYC 1869-00648-1 by 160 Una on 2006 Apr 02
Centre Star Star Sun   ath Limits Error Limits
E. Longitude Latitude U.T. Alt Az Alt Limit 1 Limit 2 Limit 3 Limit 4
o ' " o ' " h m s o o o o ' " o ' " o ' " o ' "
Latitude Latitude Latitude Latitude
- 44 0 0 .. .. .. .. .. .. .. .. .. .. .. .. 9 21 4 .. .. .. 9 43 11
- 43 0 0 9 26 48 13 31 44 1 63 69 9 1 44 9 51 54 8 39 42 10 14 1
- 42 0 0 9 57 36 13 31 44 2 63 70 9 32 32 10 22 42 9 10 30 10 44 49
- 41 0 0 10 28 22 13 31 44 3 63 70 10 3 18 10 53 28 9 41 16 11 15 36
- 40 0 0 10 59 6 13 31 44 4 63 71 10 34 2 11 24 12 10 12 0 11 46 19
- 39 0 0 11 29 46 13 31 45 5 64 72 11 4 42 11 54 52 10 42 40 12 16 59
- 38 0 0 12 0 21 13 31 45 7 64 73 11 35 18 12 25 27 11 13 16 12 47 34
- 37 0 0 12 30 51 13 31 46 8 64 73 12 5 48 12 55 57 11 43 47 13 18 3
- 36 0 0 13 1 15 13 31 46 9 64 74 12 36 13 13 26 20 12 14 12 13 48 26
- 35 0 0 13 31 32 13 31 47 10 64 75 13 6 30 13 56 36 12 44 30 14 18 41
- 34 0 0 14 1 41 13 31 48 11 65 75 13 36 40 14 26 45 13 14 41 14 48 49
- 33 0 0 14 31 42 13 31 49 12 65 76 14 6 42 14 56 44 13 44 43 15 18 48
- 32 0 0 15 1 33 13 31 50 13 65 76 14 36 34 15 26 34 14 14 36 15 48 37
- 31 0 0 15 31 14 13 31 51 14 65 76 15 6 16 15 56 14 14 44 19 16 18 15
- 30 0 0 16 0 44 13 31 52 15 66 77 15 35 47 16 25 42 15 13 51 16 47 43
- 29 0 0 16 30 2 13 31 53 16 66 77 16 5 6 16 54 59 15 43 12 17 16 58
- 28 0 0 16 59 7 13 31 55 17 66 77 16 34 14 17 24 3 16 12 21 17 46 1
- 27 0 0 17 28 0 13 31 56 19 67 77 17 3 8 17 52 54 16 41 16 18 14 51
- 26 0 0 17 56 39 13 31 58 20 67 77 17 31 48 18 21 31 17 9 58 18 43 26
- 25 0 0 18 25 3 13 31 59 21 67 76 18 0 14 18 49 53 17 38 26 19 11 46
- 24 0 0 18 53 11 13 32 1 22 68 76 18 28 25 19 18 0 18 6 38 19 39 52
- 23 0 0 19 21 4 13 32 3 23 68 76 18 56 20 19 45 51 18 34 35 20 7 41
- 22 0 0 19 48 41 13 32 4 24 68 75 19 23 58 20 13 25 19 2 15 20 35 13
- 21 0 0 20 16 0 13 32 6 25 69 75 19 51 20 20 40 43 19 29 39 21 2 28
- 20 0 0 20 43 2 13 32 8 26 69 74 20 18 24 21 7 42 19 56 45 21 29 26
- 19 0 0 21 9 46 13 32 10 27 70 74 20 45 10 21 34 23 20 23 33 21 56 5
- 18 0 0 21 36 11 13 32 12 28 70 73 21 11 38 22 0 46 20 50 3 22 22 26
- 17 0 0 22 2 17 13 32 14 29 70 72 21 37 46 22 26 49 21 16 14 22 48 27
- 16 0 0 22 28 3 13 32 16 30 71 72 22 3 35 22 52 33 21 42 5 23 14 8
- 15 0 0 22 53 29 13 32 19 31 71 71 22 29 4 23 17 56 22 7 36 23 39 29
- 14 0 0 23 18 35 13 32 21 32 72 70 22 54 12 23 42 59 22 32 47 24 4 29
- 13 0 0 23 43 19 13 32 23 33 72 69 23 19 0 24 7 41 22 57 36 24 29 9
- 12 0 0 24 7 43 13 32 25 34 73 69 23 43 26 24 32 1 23 22 5 24 53 26
- 11 0 0 24 31 44 13 32 28 35 73 68 24 7 30 24 56 0 23 46 12 25 17 22
- 10 0 0 24 55 24 13 32 30 36 74 67 24 31 13 25 19 36 24 9 57 25 40 56
- 9 0 0 25 18 41 13 32 33 37 74 66 24 54 33 25 42 51 24 33 20 26 4 8
- 8 0 0 25 41 35 13 32 35 38 75 65 25 17 30 26 5 42 24 56 20 26 26 57
- 7 0 0 26 4 7 13 32 38 39 75 64 25 40 5 26 28 10 25 18 57 26 49 22
- 6 0 0 26 26 15 13 32 41 40 76 64 26 2 16 26 50 16 25 41 11 27 11 25
- 5 0 0 26 48 0 13 32 43 41 76 63 26 24 4 27 11 57 26 3 2 27 33 4
- 4 0 0 27 9 21 13 32 46 42 77 62 26 45 28 27 33 15 26 24 29 27 54 19
- 3 0 0 27 30 18 13 32 49 43 78 61 27 6 29 27 54 10 26 45 32 28 15 11
- 2 0 0 27 50 52 13 32 52 44 78 60 27 27 5 28 14 40 27 6 11 28 35 38
- 1 0 0 28 11 1 13 32 55 45 79 59 27 47 17 28 34 46 27 26 26 28 55 41
0 0 0 28 30 45 13 32 57 46 79 58 28 7 5 28 54 27 27 46 16 29 15 20
1 0 0 28 50 5 13 33 0 47 80 58 28 26 28 29 13 44 28 5 42 29 34 34
2 0 0 29 9 1 13 33 3 47 81 57 28 45 27 29 32 37 28 24 43 29 53 24
3 0 0 29 27 32 13 33 6 48 81 56 29 4 0 29 51 4 28 43 20 30 11 49
4 0 0 29 45 37 13 33 9 49 82 55 29 22 9 30 9 7 29 1 32 30 29 49
5 0 0 30 3 18 13 33 12 50 83 54 29 39 54 30 26 45 29 19 18 30 47 24
6 0 0 30 20 34 13 33 15 51 83 53 29 57 13 30 43 58 29 36 40 31 4 34
7 0 0 30 37 25 13 33 18 52 84 52 30 14 7 31 0 46 29 53 37 31 21 20
8 0 0 30 53 51 13 33 21 53 85 51 30 30 35 31 17 9 30 10 8 31 37 40
9 0 0 31 9 52 13 33 24 54 86 51 30 46 39 31 33 7 30 26 14 31 53 35
10 0 0 31 25 28 13 33 28 55 87 50 31 2 18 31 48 39 30 41 55 32 9 5
11 0 0 31 40 38 13 33 31 56 87 49 31 17 31 32 3 47 30 57 11 32 24 10
12 0 0 31 55 24 13 33 34 56 88 48 31 32 19 32 18 29 31 12 2 32 38 50
13 0 0 32 9 44 13 33 37 57 89 47 31 46 42 32 32 47 31 26 27 32 53 5
14 0 0 32 23 39 13 33 40 58 90 46 32 0 40 32 46 39 31 40 27 33 6 55
15 0 0 32 37 8 13 33 43 59 91 45 32 14 12 33 0 6 31 54 2 33 20 20
16 0 0 32 50 13 13 33 47 60 92 45 32 27 19 33 13 8 32 7 11 33 33 20
17 0 0 33 2 52 13 33 50 61 93 44 32 40 1 33 25 45 32 19 56 33 45 54
18 0 0 33 15 7 13 33 53 62 94 43 32 52 18 33 37 57 32 32 15 33 58 4
19 0 0 33 26 56 13 33 56 62 95 42 33 4 10 33 49 44 32 44 9 34 9 49
20 0 0 33 38 21 13 34 0 63 96 41 33 15 37 34 1 6 32 55 37 34 21 9
21 0 0 33 49 20 13 34 3 64 97 40 33 26 38 34 12 3 33 6 41 34 32 4
22 0 0 33 59 54 13 34 6 65 98 40 33 37 15 34 22 35 33 17 20 34 42 34
23 0 0 34 10 4 13 34 10 66 99 39 33 47 26 34 32 43 33 27 33 34 52 39
24 0 0 34 19 48 13 34 13 66 101 38 33 57 13 34 42 25 33 37 22 35 2 20
25 0 0 34 29 8 13 34 16 67 102 37 34 6 35 34 51 43 33 46 45 35 11 36
26 0 0 34 38 3 13 34 20 68 103 36 34 15 32 35 0 36 33 55 44 35 20 28
27 0 0 34 46 34 13 34 23 69 105 35 34 24 4 35 9 4 34 4 18 35 28 54
28 0 0 34 54 39 13 34 26 69 106 35 34 32 12 35 17 8 34 12 27 35 36 57
29 0 0 35 2 20 13 34 30 70 108 34 34 39 54 35 24 48 34 20 11 35 44 35
30 0 0 35 9 37 13 34 33 71 110 33 34 47 12 35 32 2 34 27 30 35 51 48
31 0 0 35 16 29 13 34 36 72 111 32 34 54 6 35 38 53 34 34 25 35 58 37
32 0 0 35 22 56 13 34 40 72 113 31 35 0 35 35 45 19 34 40 55 36 5 2
33 0 0 35 28 59 13 34 43 73 115 30 35 6 39 35 51 20 34 47 1 36 11 2
34 0 0 35 34 37 13 34 46 74 117 30 35 12 19 35 56 58 34 52 42 36 16 38
35 0 0 35 39 52 13 34 50 74 120 29 35 17 34 36 2 11 34 57 58 36 21 50
36 0 0 35 44 42 13 34 53 75 122 28 35 22 25 36 6 59 35 2 50 36 26 38
37 0 0 35 49 7 13 34 57 76 125 27 35 26 52 36 11 24 35 7 17 36 31 2
38 0 0 35 53 8 13 35 0 76 127 26 35 30 54 36 15 24 35 11 20 36 35 1
39 0 0 35 56 45 13 35 4 77 131 26 35 34 32 36 19 1 35 14 59 36 38 37
40 0 0 35 59 58 13 35 7 78 134 25 35 37 45 36 22 13 35 18 13 36 41 48
41 0 0 36 2 47 13 35 10 78 137 24 35 40 35 36 25 1 35 21 3 36 44 36
42 0 0 36 5 11 13 35 14 79 141 23 35 43 0 36 27 25 35 23 29 36 46 59
43 0 0 36 7 12 13 35 17 79 145 22 35 45 0 36 29 25 35 25 30 36 48 59
44 0 0 36 8 48 13 35 21 79 150 22 35 46 37 36 31 1 35 27 7 36 50 34
45 0 0 36 10 0 13 35 24 80 154 21 35 47 50 36 32 12 35 28 20 36 51 46
46 0 0 36 10 48 13 35 27 80 159 20 35 48 38 36 33 0 35 29 8 36 52 34
47 0 0 36 11 12 13 35 31 80 165 19 35 49 2 36 33 24 35 29 32 36 52 57
48 0 0 36 11 12 13 35 34 80 170 18 35 49 2 36 33 24 35 29 32 36 52 57
49 0 0 36 10 48 13 35 38 81 176 17 35 48 38 36 33 0 35 29 8 36 52 33
50 0 0 36 10 0 13 35 41 81 182 17 35 47 49 36 32 12 35 28 19 36 51 45
51 0 0 36 8 47 13 35 45 81 187 16 35 46 36 36 31 0 35 27 6 36 50 33
52 0 0 36 7 11 13 35 48 80 193 15 35 45 0 36 29 24 35 25 29 36 48 58
53 0 0 36 5 10 13 35 52 80 199 14 35 42 58 36 27 24 35 23 27 36 46 58
54 0 0 36 2 46 13 35 55 80 204 13 35 40 33 36 24 59 35 21 2 36 44 34
55 0 0 35 59 57 13 35 58 80 209 13 35 37 44 36 22 11 35 18 11 36 41 46
56 0 0 35 56 44 13 36 2 79 214 12 35 34 30 36 18 59 35 14 57 36 38 35
57 0 0 35 53 6 13 36 5 79 218 11 35 30 52 36 15 22 35 11 18 36 34 59
58 0 0 35 49 5 13 36 9 78 222 10 35 26 49 36 11 22 35 7 15 36 30 59
59 0 0 35 44 39 13 36 12 78 226 9 35 22 22 36 6 57 35 2 47 36 26 35
60 0 0 35 39 49 13 36 16 77 229 8 35 17 31 36 2 8 34 57 55 36 21 47
61 0 0 35 34 34 13 36 19 77 232 8 35 12 15 35 56 54 34 52 38 36 16 35
62 0 0 35 28 55 13 36 23 76 235 7 35 6 35 35 51 17 34 46 57 36 10 58
63 0 0 35 22 52 13 36 26 76 238 6 35 0 31 35 45 15 34 40 51 36 4 58
64 0 0 35 16 24 13 36 29 75 241 5 34 54 1 35 38 49 34 34 21 35 58 33
65 0 0 35 9 32 13 36 33 74 243 4 34 47 8 35 31 58 34 27 26 35 51 43
66 0 0 35 2 15 13 36 36 74 245 3 34 39 49 35 24 43 34 20 6 35 44 30
67 0 0 34 54 34 13 36 40 73 247 3 34 32 6 35 17 3 34 12 21 35 36 51
68 0 0 34 46 28 13 36 43 72 249 2 34 23 58 35 8 59 34 4 12 35 28 49
69 0 0 34 37 57 13 36 47 71 251 1 34 15 26 35 0 30 33 55 38 35 20 21
70 0 0 34 29 1 13 36 50 71 253 0 34 6 28 34 51 36 33 46 38 35 11 29
71 0 0 34 19 41 13 36 53 70 255 -1 33 57 6 34 42 18 33 37 14 35 2 13
72 0 0 34 9 56 13 36 57 69 256 -2 33 47 19 34 32 35 33 27 25 34 52 32
73 0 0 33 59 46 13 37 0 68 258 -2 33 37 6 34 22 27 33 17 11 34 42 26
74 0 0 33 49 11 13 37 4 68 259 -3 33 26 29 34 11 54 33 6 32 34 31 55
75 0 0 33 38 11 13 37 7 67 261 -4 33 15 27 34 0 56 32 55 28 34 20 59
76 0 0 33 26 46 13 37 10 66 262 -5 33 4 0 33 49 34 32 43 58 34 9 39
77 0 0 33 14 56 13 37 14 65 263 -6 32 52 7 33 37 46 32 32 4 33 57 53
78 0 0 33 2 41 13 37 17 64 264 -7 32 39 50 33 25 34 32 19 44 33 45 43
79 0 0 32 50 1 13 37 20 64 265 -8 32 27 7 33 12 56 32 6 59 33 33 7
80 0 0 32 36 55 13 37 24 63 266 -9 32 13 59 32 59 53 31 53 49 33 20 7
81 0 0 32 23 25 13 37 27 62 268 -9 32 0 25 32 46 25 31 40 13 33 6 41
82 0 0 32 9 29 13 37 30 61 269 -10 31 46 27 32 32 32 31 26 12 32 52 51
83 0 0 31 55 8 13 37 34 60 270 -11 31 32 3 32 18 14 31 11 46 32 38 35
84 0 0 31 40 21 13 37 37 59 270 -12 31 17 14 32 3 30 30 56 54 32 23 54
85 0 0 31 25 10 13 37 40 58 271 -13 31 2 0 31 48 22 30 41 38 32 8 48
86 0 0 31 9 33 13 37 44 58 272 -14 30 46 20 31 32 48 30 25 55 31 53 16
87 0 0 30 53 31 13 37 47 57 273 -15 30 30 15 31 16 49 30 9 48 31 37 20
88 0 0 30 37 4 13 37 50 56 274 -16 30 13 45 31 0 25 29 53 15 31 20 59
89 0 0 30 20 12 13 37 53 55 275 -17 29 56 50 30 43 36 29 36 18 31 4 12
90 0 0 30 2 55 13 37 56 54 276 -18 29 39 30 30 26 22 29 18 55 30 47 1
91 0 0 29 45 13 13 38 0 53 276 -18 29 21 45 30 8 42 29 1 7 30 29 24
92 0 0 29 27 5 13 38 3 52 277 -19 29 3 34 29 50 38 28 42 54 30 11 23
93 0 0 29 8 33 13 38 6 51 278 -20 28 44 59 29 32 9 28 24 16 29 52 56
94 0 0 28 49 36 13 38 9 50 279 -21 28 25 59 29 13 15 28 5 13 29 34 5
95 0 0 28 30 15 13 38 12 49 279 -22 28 6 34 28 53 57 27 45 45 29 14 50
96 0 0 28 10 28 13 38 15 49 280 -23 27 46 45 28 34 14 27 25 53 28 55 9
97 0 0 27 50 18 13 38 18 48 281 -24 27 26 31 28 14 6 27 5 37 28 35 5
98 0 0 27 29 43 13 38 21 47 281 -25 27 5 53 27 53 34 26 44 56 28 14 36
99 0 0 27 8 44 13 38 24 46 282 -26 26 44 51 27 32 39 26 23 51 27 53 42
100 0 0 26 47 21 13 38 27 45 283 -27 26 23 25 27 11 19 26 2 22 27 32 25
101 0 0 26 25 34 13 38 30 44 283 -28 26 1 35 26 49 35 25 40 30 27 10 45
102 0 0 26 3 24 13 38 33 43 284 -29 25 39 22 26 27 28 25 18 14 26 48 40
103 0 0 25 40 51 13 38 36 42 284 -30 25 16 45 26 4 58 24 55 35 26 26 12
104 0 0 25 17 54 13 38 38 41 285 -31 24 53 46 25 42 4 24 32 33 26 3 22
105 0 0 24 54 35 13 38 41 40 285 -32 24 30 24 25 18 48 24 9 8 25 40 8
106 0 0 24 30 53 13 38 44 39 286 -33 24 6 39 24 55 9 23 45 21 25 16 32
107 0 0 24 6 50 13 38 46 38 286 -34 23 42 32 24 31 8 23 21 11 24 52 34
108 0 0 23 42 24 13 38 49 37 287 -35 23 18 4 24 6 46 22 56 41 24 28 14
109 0 0 23 17 37 13 38 52 36 287 -36 22 53 14 23 42 2 22 31 48 24 3 32
110 0 0 22 52 29 13 38 54 35 288 -37 22 28 4 23 16 57 22 6 35 23 38 29
111 0 0 22 27 1 13 38 57 34 288 -38 22 2 33 22 51 31 21 41 2 23 13 6
112 0 0 22 1 12 13 38 59 33 289 -39 21 36 41 22 25 45 21 15 8 22 47 22
113 0 0 21 35 4 13 39 1 32 289 -40 21 10 30 21 59 39 20 48 55 22 21 19
114 0 0 21 8 36 13 39 4 31 290 -41 20 44 0 21 33 14 20 22 23 21 54 56
115 0 0 20 41 50 13 39 6 30 290 -42 20 17 11 21 6 30 19 55 32 21 28 14
116 0 0 20 14 45 13 39 8 29 290 -43 19 50 5 20 39 28 19 28 23 21 1 14
117 0 0 19 47 23 13 39 10 28 291 -44 19 22 40 20 12 8 19 0 57 20 33 56
118 0 0 19 19 44 13 39 12 27 291 -45 18 54 59 19 44 31 18 33 14 20 6 21
119 0 0 18 51 48 13 39 14 26 292 -46 18 27 1 19 16 37 18 5 14 19 38 29
120 0 0 18 23 36 13 39 16 25 292 -47 17 58 47 18 48 27 17 36 59 19 10 21
121 0 0 17 55 10 13 39 18 23 292 -49 17 30 19 18 20 2 17 8 28 18 41 58
122 0 0 17 26 28 13 39 20 22 293 -50 17 1 36 17 51 23 16 39 44 18 13 20
123 0 0 16 57 33 13 39 21 21 293 -51 16 32 39 17 22 29 16 10 45 17 44 27
124 0 0 16 28 24 13 39 23 20 293 -52 16 3 29 16 53 22 15 41 34 17 15 22
125 0 0 15 59 3 13 39 25 19 294 -53 15 34 6 16 24 2 15 12 10 16 46 3
126 0 0 15 29 31 13 39 26 18 294 -54 15 4 32 15 54 31 14 42 35 16 16 33
127 0 0 14 59 47 13 39 28 17 294 -55 14 34 47 15 24 48 14 12 49 15 46 51
128 0 0 14 29 53 13 39 29 16 294 -56 14 4 52 14 54 55 13 42 53 15 17 0
129 0 0 13 59 49 13 39 30 15 295 -57 13 34 48 14 24 53 13 12 48 14 46 58
130 0 0 13 29 37 13 39 31 14 295 -58 13 4 35 13 54 42 12 42 35 14 16 47
131 0 0 12 59 18 13 39 32 13 295 -59 12 34 15 13 24 23 12 12 13 13 46 29
132 0 0 12 28 51 13 39 33 11 295 -60 12 3 47 12 53 56 11 41 46 13 16 3
133 0 0 11 58 18 13 39 34 10 296 -62 11 33 14 12 23 24 11 11 12 12 45 31
134 0 0 11 27 40 13 39 35 9 296 -63 11 2 35 11 52 46 10 40 33 12 14 53
135 0 0 10 56 57 13 39 36 8 296 -64 10 31 52 11 22 4 10 9 50 11 44 11
136 0 0 10 26 11 13 39 36 7 296 -65 10 1 6 10 51 17 9 39 4 11 13 25
137 0 0 9 55 22 13 39 37 6 296 -66 9 30 17 10 20 28 9 8 15 10 42 36
138 0 0 9 24 31 13 39 37 5 297 -67 8 59 27 9 49 37 8 37 24 10 11 44
139 0 0 8 53 39 13 39 38 4 297 -68 8 28 35 9 18 45 8 6 33 9 40 52
140 0 0 8 22 47 13 39 38 3 297 -69 7 57 44 8 47 53 7 35 42 9 9 59
141 0 0 7 51 56 13 39 38 2 297 -70 7 26 53 8 17 1 7 4 52 8 39 7
142 0 0 7 21 7 13 39 38 0 297 -71 6 56 4 7 46 11 6 34 4 8 8 16
Data for the target star
------------------------
* name: TYC 1869-00648-1
* constellation : Taurus
* J2000 position with proper motion to date of event [h,m,s ; ?',"]
RA: 05 37 07.9286 DE: +26 57 27.970
* position source: UCAC2
* standard error: RA,DE ["]: ( .015, .015 )
* V mag [mag]: 10.1
* B mag [mag]: 10.5
* Apparent position with proper motion
RA(deg): 84.3782146890 DE(deg): 26.9641003737
* Equation of equinoxes (radians) : -0.000007653227671
* remarks:
Data for the minor planet
-------------------------
* general information:
(number) name: (160) Una
approx. diameter [km]: 81
approx. diameter ["]: .041
distance from Earth [AU]: 2.71900
* orbital information:
orbit source: Preston
date of fit: 2006 Mar 02
source of used astrometry: FASTT MPC (via Astdys)
number of used observations: 627
number of rejected observations: 131
time covered by the observations: 1910 Oct 12 - 2006 Feb 22
1 sigma uncertainty ellipse (major, minor, PA): 0.014, 0.010, 87?
remarks:
* orbital elements for (160) Una :
Mean anomaly = 42.23087718 deg
Arg. of pericenter = 49.85311616 deg
Long. of node = 8.84982823 deg
Inclination = 3.82410314 deg
Eccentricity = 0.06716680
Semimajor axis = 2.72712521 AU
 erihelion dist = 2.54395293 AU
Mag: H = 8.98, G = 0.15
Epoch of elements : MJD 53827.56600000 TDT
(2006 Apr 02.566)
------ occelmnt file for Occult BEGIN -----------------------------------
2006 Apr 02
160 Una
13h 35.7m UT
10.1 5 37 7.929 26 57 27.97TYC 1869-00648-1 10.5
14.4 81 3.1 2.719 3.623 -0.86
49.605 26.958 -23.02 5.01
13.5946 .00149 .15664 14.97807 -0.26538 0.00542 0.00032
2000 40.57505822006 326.00000 49.853116 8.849828 3.8241030.067166802.727125212.543952939.085 0.15
RATE 2.1884995 .0000000 .0000000 .0000000 .00000000 .00000000 .00000000
Meas 0.021 0.018 89.0 1.440 0.018
------ occelmnt file for Occult END -----------------------------------
============================================
Calculator (s): Steve Preston
Date of update: 2006 Mar 03, 21:19 UT
Steve Preston
7640 NE 32nd St
Medina, WA 98039
425-688-9965
mailto: stevepr@acm.org |
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天文圈第一大牌：http://www.astronomy.com.cn/bbs/thread-160891-1-1.html
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发表于 2006-3-26 11:52
来自： 广东省广州市 华南农业大学管理干部学院教育网