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发表于 2006-3-5 16:02
来自： 广西桂林市 电信
一次多好的机会……
留个纪念吧，过几天这个页面就没了。
IOTA/IOTA-ES occultation update for
(148) Gallia / TYC 0158-01445-1 event on 2006 Feb 26, 17:44 UT
Visible from SE Asia, China, Hong Kong
Summary
-------
On 2006 Feb 26 UT, the 98 km diameter asteroid (148) Gallia will occult a 10.9
mag star in the constellation Monoceros for observers along a path across SE
Asia, China, Hong Kong.
In the case of an occultation, the combined light of the asteroid and the star
will drop by 1.5 mag to 12.1 mag (the magnitude of the asteroid) for at most 7.5
seconds.
This update is based on UNSO/Flagstaff astrometry for the asteroid kindly
provided by Ron Stone, TMO astrometry for the asteroid kindly provided by Bill
Owen, historical astrometry from the MPC files (via AstDys), and the following
catalogs for the star position: UCAC.
The event at a glimpse
----------------------
* Rank: 98
* date and approx. time of event: 2006 Feb 26, 17:38 - 2006 Feb 26, 17:48 UT
* magnitude of target star: 10.9
* magnitude drop [mag]: 1.5
* estimated maximum duration : 7.5
* Moon: 2 % sunlit, 134?distance
* Sun: 119?distance
* rough path description: SE Asia, China, Hong Kong
The occultation path
--------------------
* approximate projected width [km]: 158
* 1 sigma uncertainty interval [path widths]: +/- 0.37
* 1 sigma uncertainty interval [seconds]: +/- 2.4
* 1 sigma uncertainty interval approx RA,DE ["]: (+/- .026 +/- .021)
* 1 sigma uncertainty ellipse (major, minor, PA): ( .026", .021", 83?)
* approx speed of asteroid's shadow [km/s]: 13.1011
* website for maps:
http://lunar-occultations.com/iota/asteroids/astrndx.htm
http://www.asteroidoccultation.com
Path Coordinates:
Occultation of TYC 0158-01445-1 by 148 Gallia on 2006 Feb 26
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 ' "
Longitude Longitude Longitude Longitude
117 20 13 -52 0 0 17 38 47 0 282 -27 ... .. .. 113 5 2 ... .. .. ... .. ..
111 57 16 -51 0 0 17 38 49 4 286 -29 115 36 10 109 6 33 ... .. .. 107 17 18
108 23 43 -50 0 0 17 38 52 6 289 -31 111 2 27 106 6 26 113 22 11 104 34 22
105 37 30 -49 0 0 17 38 55 8 291 -32 107 48 22 103 39 28 109 36 42 102 18 26
103 19 58 -48 0 0 17 38 59 10 292 -33 105 13 55 101 34 51 106 45 31 100 21 38
101 22 25 -47 0 0 17 39 4 12 294 -34 103 4 40 99 46 43 104 25 30 98 39 24
99 39 52 -46 0 0 17 39 8 13 295 -36 101 13 27 98 11 24 102 26 37 97 8 46
98 9 9 -45 0 0 17 39 13 15 296 -37 99 35 59 96 46 29 100 43 21 95 47 38
96 48 7 -44 0 0 17 39 18 16 297 -38 98 9 30 95 30 12 99 12 17 94 34 31
95 35 12 -43 0 0 17 39 23 17 297 -38 96 52 5 94 21 17 97 51 8 93 28 16
94 29 13 -42 0 0 17 39 28 18 298 -39 95 42 18 93 18 42 96 38 15 92 28 0
93 29 15 -41 0 0 17 39 34 19 298 -40 94 39 6 92 21 41 95 32 24 91 32 59
92 34 36 -40 0 0 17 39 39 20 299 -41 93 41 37 91 29 35 94 32 40 90 42 40
91 44 39 -39 0 0 17 39 45 21 299 -42 92 49 13 90 41 54 93 38 16 89 56 33
90 58 55 -38 0 0 17 39 51 22 299 -43 92 1 19 89 58 11 92 48 38 89 14 14
90 17 1 -37 0 0 17 39 57 23 299 -44 91 17 29 89 18 5 92 3 16 88 35 23
89 38 36 -36 0 0 17 40 3 24 299 -45 90 37 20 88 41 17 91 21 46 87 59 42
89 3 23 -35 0 0 17 40 9 25 299 -46 90 0 33 88 7 31 90 43 46 87 26 57
88 31 6 -34 0 0 17 40 16 26 299 -47 89 26 52 87 36 33 90 8 59 86 56 55
88 1 33 -33 0 0 17 40 22 27 299 -47 88 56 2 87 8 11 89 37 10 86 29 24
87 34 32 -32 0 0 17 40 29 28 299 -48 88 27 52 86 42 16 89 8 5 86 4 14
87 9 53 -31 0 0 17 40 36 28 299 -49 88 2 11 86 18 37 88 41 35 85 41 18
86 47 29 -30 0 0 17 40 43 29 299 -50 87 38 49 85 57 7 88 17 29 85 20 26
86 27 10 -29 0 0 17 40 50 30 299 -51 87 17 39 85 37 38 87 55 38 85 1 32
86 8 51 -28 0 0 17 40 57 31 298 -52 86 58 32 85 20 4 87 35 55 84 44 31
85 52 26 -27 0 0 17 41 4 31 298 -53 86 41 23 85 4 21 87 18 12 84 29 17
85 37 49 -26 0 0 17 41 11 32 298 -54 86 26 7 84 50 21 87 2 25 84 15 44
85 24 56 -25 0 0 17 41 19 33 297 -54 86 12 38 84 38 2 86 48 29 84 3 50
85 13 42 -24 0 0 17 41 26 33 297 -55 86 0 51 84 27 20 86 36 17 83 53 30
85 4 4 -23 0 0 17 41 34 34 296 -56 85 50 44 84 18 10 86 25 47 83 44 41
84 55 59 -22 0 0 17 41 41 34 296 -57 85 42 12 84 10 31 86 16 55 83 37 20
84 49 24 -21 0 0 17 41 49 35 295 -58 85 35 13 84 4 19 86 9 38 83 31 24
84 44 16 -20 0 0 17 41 57 35 294 -59 85 29 44 83 59 31 86 3 52 83 26 51
84 40 34 -19 0 0 17 42 5 36 294 -60 85 25 43 83 56 7 85 59 37 83 23 40
84 38 15 -18 0 0 17 42 13 36 293 -61 85 23 8 83 54 4 85 56 50 83 21 48
84 37 18 -17 0 0 17 42 21 36 292 -61 85 21 58 83 53 21 85 55 29 83 21 15
84 37 42 -16 0 0 17 42 29 37 292 -62 85 22 10 83 53 56 85 55 33 83 21 58
84 39 27 -15 0 0 17 42 37 37 291 -63 85 23 45 83 55 50 85 57 0 83 23 58
84 42 30 -14 0 0 17 42 46 37 290 -64 85 26 42 83 59 0 85 59 51 83 27 14
84 46 53 -13 0 0 17 42 54 37 290 -65 85 30 59 84 3 28 86 4 5 83 31 45
84 52 34 -12 0 0 17 43 2 38 289 -66 85 36 37 84 9 12 86 9 41 83 37 32
84 59 34 -11 0 0 17 43 11 38 288 -67 85 43 37 84 16 13 86 16 40 83 44 33
85 7 53 -10 0 0 17 43 19 38 287 -68 85 51 57 84 24 30 86 25 2 83 52 50
85 17 32 - 9 0 0 17 43 28 38 286 -69 86 1 40 84 34 6 86 34 48 84 2 23
85 28 31 - 8 0 0 17 43 36 38 285 -70 86 12 45 84 44 59 86 45 58 84 13 13
85 40 51 - 7 0 0 17 43 45 38 285 -71 86 25 14 84 57 12 86 58 34 84 25 21
85 54 35 - 6 0 0 17 43 54 38 284 -72 86 39 8 85 10 46 87 12 37 84 38 47
86 9 43 - 5 0 0 17 44 3 38 283 -73 86 54 30 85 25 42 87 28 9 84 53 35
86 26 18 - 4 0 0 17 44 11 38 282 -74 87 11 21 85 42 2 87 45 12 85 9 44
86 44 22 - 3 0 0 17 44 20 38 281 -74 87 29 43 85 59 48 88 3 49 85 27 18
87 3 57 - 2 0 0 17 44 29 38 280 -75 87 49 40 86 19 3 88 24 3 85 46 19
87 25 7 - 1 0 0 17 44 38 38 280 -76 88 11 15 86 39 49 88 45 57 86 6 49
87 47 55 0 0 0 17 44 47 37 279 -77 88 34 31 87 2 11 89 9 36 86 28 52
88 12 25 1 0 0 17 44 56 37 278 -78 88 59 33 87 26 11 89 35 3 86 52 32
88 38 42 2 0 0 17 45 5 37 277 -79 89 26 26 87 51 55 90 2 24 87 17 52
89 6 51 3 0 0 17 45 14 36 277 -80 89 55 15 88 19 26 90 31 44 87 44 57
89 36 57 4 0 0 17 45 24 36 276 -81 90 26 6 88 48 51 91 3 11 88 13 52
Latitude Latitude Latitude Latitude
90 0 0 4 43 22 17 45 30 36 275 -82 3 9 31 6 10 45 1 54 55 7 11 59
91 0 0 6 27 23 17 45 46 35 274 -84 5 1 31 7 48 12 3 54 6 8 45 15
92 0 0 8 0 40 17 46 1 34 273 -85 6 40 58 9 16 17 5 38 55 10 9 58
93 0 0 9 25 8 17 46 14 33 272 -86 8 10 22 10 36 30 7 12 31 11 27 23
94 0 0 10 42 10 17 46 26 32 272 -87 9 31 26 11 49 59 8 36 59 12 38 30
95 0 0 11 52 47 17 46 37 31 271 -86 10 45 26 12 57 35 9 53 47 13 44 6
96 0 0 12 57 47 17 46 47 30 271 -86 11 53 20 14 0 1 11 4 2 14 44 46
97 0 0 13 57 48 17 46 56 29 270 -85 12 55 50 14 57 47 12 8 34 15 41 1
98 0 0 14 53 21 17 47 5 28 270 -83 13 53 33 15 51 22 13 8 1 16 33 14
99 0 0 15 44 51 17 47 13 27 270 -82 14 46 56 16 41 7 14 2 57 17 21 48
100 0 0 16 32 38 17 47 21 26 270 -81 15 36 25 17 27 22 14 53 46 18 6 59
101 0 0 17 17 2 17 47 28 25 270 -80 16 22 18 18 10 23 15 40 50 18 49 2
102 0 0 17 58 16 17 47 35 24 270 -79 17 4 52 18 50 23 16 24 28 19 28 10
103 0 0 18 36 34 17 47 41 23 270 -78 17 44 22 19 27 34 17 4 54 20 4 35
104 0 0 19 12 7 17 47 47 22 270 -77 18 21 0 20 2 7 17 42 23 20 38 26
105 0 0 19 45 6 17 47 53 21 270 -76 18 54 57 20 34 11 18 17 6 21 9 51
106 0 0 20 15 38 17 47 58 20 270 -75 19 26 21 21 3 54 18 49 12 21 38 59
107 0 0 20 43 51 17 48 3 19 271 -74 19 55 22 21 31 22 19 18 50 22 5 57
108 0 0 21 9 53 17 48 7 18 271 -73 20 22 7 21 56 43 19 46 8 22 30 49
109 0 0 21 33 48 17 48 12 17 271 -72 20 46 41 22 20 2 20 11 12 22 53 42
110 0 0 21 55 43 17 48 15 16 271 -71 21 9 10 22 41 23 20 34 9 23 14 40
111 0 0 22 15 41 17 48 19 15 272 -70 21 29 40 23 0 52 20 55 3 23 33 48
112 0 0 22 33 47 17 48 23 14 272 -69 21 48 14 23 18 31 21 13 59 23 51 8
113 0 0 22 50 4 17 48 26 13 272 -68 22 4 57 23 34 25 21 31 2 24 6 45
114 0 0 23 4 37 17 48 29 12 272 -68 22 19 52 23 48 36 21 46 14 24 20 41
115 0 0 23 17 26 17 48 31 11 273 -67 22 33 2 24 1 7 21 59 39 24 32 58
116 0 0 23 28 36 17 48 34 11 273 -66 22 44 29 24 12 0 22 11 20 24 43 40
117 0 0 23 38 8 17 48 36 10 274 -65 22 54 15 24 21 17 22 21 18 24 52 47
118 0 0 23 46 3 17 48 38 9 274 -64 23 2 23 24 29 1 22 29 36 25 0 23
119 0 0 23 52 24 17 48 40 8 274 -63 23 8 55 24 35 12 22 36 15 25 6 27
120 0 0 23 57 12 17 48 42 7 275 -62 23 13 51 24 39 52 22 41 18 25 11 1
121 0 0 24 0 27 17 48 43 6 275 -62 23 17 12 24 43 1 22 44 44 .. .. ..
122 0 0 24 2 11 17 48 44 5 275 -61 23 19 0 24 44 41 22 46 35 .. .. ..
123 0 0 24 2 24 17 48 45 4 276 -60 23 19 15 24 44 52 22 46 51 .. .. ..
124 0 0 24 1 5 17 48 46 3 276 -59 23 17 56 24 43 33 22 45 33 .. .. ..
125 0 0 23 58 16 17 48 47 2 277 -58 23 15 5 .. .. .. 22 42 41 .. .. ..
126 0 0 23 53 56 17 48 47 1 277 -58 23 10 41 .. .. .. 22 38 13 .. .. ..
127 0 0 23 48 4 17 48 47 0 277 -57 23 4 43 .. .. .. 22 32 11 .. .. ..
Data for the target star
------------------------
* name: TYC 0158-01445-1
* constellation : Monoceros
* J2000 position with proper motion to date of event [h,m,s ; ?',"]
RA: 06 31 52.6190 DE: +07 01 30.010
* position source: UCAC2
* standard error: RA,DE ["]: ( .020, .018 )
* V mag [mag]: 10.9
* B mag [mag]: 12.5
* remarks:
Data for the minor planet
-------------------------
* general information:
(number) name: (148) Gallia
approx. diameter [km]: 98
approx. diameter ["]: .069
distance from Earth [AU]: 1.94500
* orbital information:
orbit source: Preston
date of fit: 2006 Feb 14
source of used astrometry: FASTT TMO MPC (via Astdys)
number of used observations: 1187
number of rejected observations: 118
time covered by the observations: 1900 Jan 13 - 2006 Feb 13
1 sigma uncertainty ellipse (major, minor, PA): 0.017, 0.011, 74?
remarks:
* orbital elements for (148) Gallia :
Mean anomaly = 57.99865278 deg
Arg. of pericenter = 252.17900238 deg
Long. of node = 145.19272770 deg
Inclination = 25.29717456 deg
Eccentricity = 0.18714388
Semimajor axis = 2.77043635 AU
 erihelion dist = 2.25196614 AU
Mag: H = 7.50, G = 0.15
Epoch of elements : MJD 53792.73900000 TDT
(2006 Feb 26.739)
------ occelmnt file for Occult BEGIN -----------------------------------
2006 Feb 26
148 Gallia
17h 43.8m UT
10.9 6 31 52.619 7 1 30.01TYC 0158-01445-1 12.6
12.1 98 7.5 1.945 0.559 32.37
35.594 7.016 277.28 -8.57
17.7296 .76106 -.19525 1.83673 7.16288 0.00507 0.00054
2000 57.41322442006 224.00000252.179002145.192728 25.2971750.187143882.770436352.251966147.635 0.15
RATE 2.1373803 .0000000 .0000000 .0000000 .00000000 .00000000 .00000000
Meas 0.026 0.021 83.4 1.370 0.026
------ occelmnt file for Occult END -----------------------------------
============================================
Calculator (s): Steve Preston
Date of update: 2006 Feb 15, 06:13 UT
Steve Preston
7640 NE 32nd St
Medina, WA 98039
425-688-9965
mailto: stevepr@acm.org |
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