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THE UPDATED PATH
(Note: The duration given in the line below is the interval during which the occultation shadow sweeps across the Earth - please see the minute markers on the map to determine the approximate the time for your location)
On 2004 Oct 22 UT, the 76 km diameter asteroid (914) Palisana will occult a 11.7 mag star in the constellation Andromeda for observers along a path across Japan, Indonesia, W Australia.
In the case of an occultation, the combined light of the asteroid and the star will drop by 1.1 mag to 12.3 mag (the magnitude of the asteroid) for at most 6.1 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.
Additional details of this and other events are available at Steve Preston's website at http://www.asteroidoccultation.com/
EVENT DETAILS SUMMARY :Important Note regarding Accuracy:
The uncertainty interval in path widths given above (and shown as a 1-sigma uncertainty ellipse on the plot) refers to RMS deviation and is applied as a +/- range. In other words, a path uncertainty of 1.0 path widths means that the actual center of the asteroid's shadow path should fall within plus or minus 1 path width of the plotted path center. However path errors larger than 1 sigma have been observed so observers should be alert for primary occultations within plus or minus 3 sigma of the updated path.
Further, almost all asteroidal satellites discovered so far have been found within 10 diameters of the asteroid (since this distance is deep enough within the gravitational well to be stable over long timescales). Therefore, if monitoring for secondary events, observing out to about 10 path-widths either side of the predicted track remains worthwhile.
We therefore recommend that you monitor for events if your observing location is up to +/- 10 path-widths from the predicted track. If not monitoring for occultations by secondary bodies you should observe from locations within 3 sigma of the nominal path.
In terms of time, the predictions are now usually accurate to about +/- 0.3 minute so you should be most attentive during the predicted minute of the event. However if intending to catch a potential satellite occultation you should start observing at least 10 times the predicted central duration before the predicted closest approach time for your location, and continue for a similar period afterwards.
Centre Star Star Sun Path 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
118 47 24 -51 0 0 14 17 15 1 354 -25 118 12 56 119 21 58 117 48 11 119 46 55
118 38 39 -50 0 0 14 17 15 2 354 -26 118 4 56 119 12 29 117 40 42 119 36 54
118 30 50 -49 0 0 14 17 15 3 355 -26 117 57 48 119 3 57 117 34 4 119 27 52
118 23 52 -48 0 0 14 17 15 4 355 -27 117 51 29 118 56 19 117 28 13 119 19 45
118 17 42 -47 0 0 14 17 14 5 355 -28 117 45 56 118 49 32 117 23 7 119 12 31
118 12 18 -46 0 0 14 17 13 6 355 -29 117 41 7 118 43 33 117 18 44 119 6 6
118 7 36 -45 0 0 14 17 12 7 355 -30 117 36 59 118 38 18 117 14 59 119 0 27
118 3 35 -44 0 0 14 17 11 8 355 -31 117 33 30 118 33 45 117 11 53 118 55 31
118 0 13 -43 0 0 14 17 10 9 355 -32 117 30 37 118 29 53 117 9 21 118 51 18
117 57 28 -42 0 0 14 17 8 10 355 -32 117 28 20 118 26 39 117 7 24 118 47 43
117 55 17 -41 0 0 14 17 7 11 355 -33 117 26 36 118 24 1 117 5 59 118 44 46
117 53 39 -40 0 0 14 17 5 12 355 -34 117 25 24 118 21 58 117 5 5 118 42 24
117 52 33 -39 0 0 14 17 3 13 355 -35 117 24 42 118 20 28 117 4 41 118 40 37
117 51 58 -38 0 0 14 17 1 14 355 -36 117 24 29 118 19 30 117 4 45 118 39 22
117 51 52 -37 0 0 14 16 59 15 355 -37 117 24 45 118 19 2 117 5 16 118 38 38
117 52 14 -36 0 0 14 16 56 16 355 -38 117 25 28 118 19 3 117 6 13 118 38 24
117 53 3 -35 0 0 14 16 54 17 355 -39 117 26 36 118 19 33 117 7 36 118 38 40
117 54 18 -34 0 0 14 16 51 18 355 -39 117 28 10 118 20 30 117 9 23 118 39 23
117 55 59 -33 0 0 14 16 48 19 355 -40 117 30 9 118 21 53 117 11 34 118 40 33
117 58 4 -32 0 0 14 16 45 20 355 -41 117 32 31 118 23 41 117 14 8 118 42 10
118 0 34 -31 0 0 14 16 42 21 355 -42 117 35 16 118 25 55 117 17 5 118 44 12
118 3 26 -30 0 0 14 16 39 22 355 -43 117 38 24 118 28 32 117 20 23 118 46 38
118 6 42 -29 0 0 14 16 35 23 355 -44 117 41 53 118 31 33 117 24 3 118 49 29
118 10 19 -28 0 0 14 16 32 23 354 -45 117 45 44 118 34 57 117 28 4 118 52 43
118 14 18 -27 0 0 14 16 28 24 354 -45 117 49 56 118 38 44 117 32 25 118 56 20
118 18 39 -26 0 0 14 16 24 25 354 -46 117 54 29 118 42 52 117 37 6 119 0 20
118 23 21 -25 0 0 14 16 20 26 354 -47 117 59 22 118 47 22 117 42 7 119 4 42
118 28 23 -24 0 0 14 16 16 27 354 -48 118 4 35 118 52 14 117 47 28 119 9 26
118 33 45 -23 0 0 14 16 11 28 354 -49 118 10 7 118 57 26 117 53 8 119 14 31
118 39 28 -22 0 0 14 16 7 29 354 -50 118 15 59 119 2 59 117 59 7 119 19 57
118 45 30 -21 0 0 14 16 2 30 354 -50 118 22 10 119 8 52 118 5 24 119 25 44
118 51 52 -20 0 0 14 15 57 31 354 -51 118 28 41 119 15 6 118 12 1 119 31 51
118 58 34 -19 0 0 14 15 52 32 353 -52 118 35 30 119 21 40 118 18 56 119 38 20
119 5 35 -18 0 0 14 15 47 33 353 -53 118 42 38 119 28 33 118 26 9 119 45 8
119 12 55 -17 0 0 14 15 42 34 353 -54 118 50 5 119 35 47 118 33 41 119 52 17
119 20 34 -16 0 0 14 15 37 35 353 -55 118 57 51 119 43 20 118 41 31 119 59 46
119 28 33 -15 0 0 14 15 31 36 353 -55 119 5 55 119 51 13 118 49 39 120 7 34
119 36 51 -14 0 0 14 15 26 37 352 -56 119 14 18 119 59 26 118 58 6 120 15 43
119 45 28 -13 0 0 14 15 20 38 352 -57 119 23 0 120 7 58 119 6 51 120 24 12
119 54 24 -12 0 0 14 15 14 39 352 -58 119 32 1 120 16 51 119 15 55 120 33 2
120 3 40 -11 0 0 14 15 8 40 352 -59 119 41 20 120 26 3 119 25 17 120 42 11
120 13 15 -10 0 0 14 15 2 41 352 -59 119 50 59 120 35 35 119 34 58 120 51 41
120 23 10 - 9 0 0 14 14 56 42 351 -60 120 0 57 120 45 27 119 44 58 121 1 31
120 33 25 - 8 0 0 14 14 50 43 351 -61 120 11 14 120 55 39 119 55 17 121 11 42
120 44 0 - 7 0 0 14 14 43 44 351 -62 120 21 50 121 6 12 120 5 55 121 22 13
120 54 55 - 6 0 0 14 14 37 45 350 -62 120 32 47 121 17 6 120 16 52 121 33 6
121 6 10 - 5 0 0 14 14 30 46 350 -63 120 44 3 121 28 20 120 28 9 121 44 20
121 17 47 - 4 0 0 14 14 23 47 350 -64 120 55 40 121 39 56 120 39 47 121 55 55
121 29 44 - 3 0 0 14 14 16 48 349 -65 121 7 37 121 51 53 120 51 44 122 7 52
121 42 3 - 2 0 0 14 14 9 49 349 -65 121 19 56 122 4 12 121 4 2 122 20 12
121 54 43 - 1 0 0 14 14 2 50 348 -66 121 32 36 122 16 54 121 16 41 122 32 54
122 7 46 0 0 0 14 13 55 51 348 -67 121 45 37 122 29 58 121 29 42 122 45 59
122 21 11 1 0 0 14 13 48 52 347 -67 121 59 1 122 43 25 121 43 4 122 59 27
122 35 0 2 0 0 14 13 40 52 347 -68 122 12 47 122 57 16 121 56 49 123 13 20
122 49 12 3 0 0 14 13 33 53 346 -69 122 26 57 123 11 31 122 10 57 123 27 37
123 3 49 4 0 0 14 13 25 54 346 -69 122 41 30 123 26 10 122 25 28 123 42 19
123 18 50 5 0 0 14 13 17 55 345 -70 122 56 28 123 41 15 122 40 23 123 57 26
123 34 17 6 0 0 14 13 9 56 344 -70 123 11 50 123 56 46 122 55 43 124 13 0
123 50 10 7 0 0 14 13 1 57 344 -71 123 27 39 124 12 44 123 11 28 124 29 1
124 6 30 8 0 0 14 12 53 58 343 -71 123 43 53 124 29 9 123 27 39 124 45 30
124 23 17 9 0 0 14 12 45 59 342 -72 124 0 35 124 46 3 123 44 17 125 2 28
124 40 33 10 0 0 14 12 37 60 341 -72 124 17 45 125 3 25 124 1 22 125 19 55
124 58 19 11 0 0 14 12 29 60 340 -72 124 35 24 125 21 18 124 18 56 125 37 52
125 16 35 12 0 0 14 12 20 61 339 -73 124 53 33 125 39 41 124 37 0 125 56 21
125 35 23 13 0 0 14 12 12 62 338 -73 125 12 13 125 58 37 124 55 34 126 15 23
125 54 43 14 0 0 14 12 3 63 337 -73 125 31 24 126 18 6 125 14 40 126 34 58
126 14 37 15 0 0 14 11 55 64 336 -73 125 51 9 126 38 9 125 34 18 126 55 8
126 35 6 16 0 0 14 11 46 64 334 -73 126 11 29 126 58 48 125 54 30 127 15 54
126 56 12 17 0 0 14 11 37 65 333 -73 126 32 24 127 20 4 126 15 18 127 37 18
127 17 55 18 0 0 14 11 28 66 332 -73 126 53 56 127 41 59 126 36 42 127 59 21
127 40 18 19 0 0 14 11 19 67 330 -73 127 16 7 128 4 34 126 58 45 128 22 5
128 3 22 20 0 0 14 11 10 67 328 -73 127 38 58 128 27 51 127 21 27 128 45 31
128 27 9 21 0 0 14 11 1 68 326 -73 128 2 32 128 51 52 127 44 51 129 9 42
128 51 41 22 0 0 14 10 52 69 324 -72 128 26 49 129 16 38 128 8 58 129 34 39
129 17 0 23 0 0 14 10 43 69 322 -72 128 51 53 129 42 12 128 33 51 130 0 24
129 43 8 24 0 0 14 10 33 70 320 -72 129 17 45 130 8 37 128 59 32 130 27 1
130 10 8 25 0 0 14 10 24 70 317 -71 129 44 28 130 35 54 129 26 2 130 54 31
130 38 2 26 0 0 14 10 15 71 315 -71 130 12 3 131 4 6 129 53 25 131 22 56
131 6 53 27 0 0 14 10 5 71 312 -70 130 40 35 131 33 17 130 21 42 131 52 21
131 36 44 28 0 0 14 9 56 71 309 -70 131 10 6 132 3 29 130 50 58 132 22 48
132 7 38 29 0 0 14 9 46 72 306 -69 131 40 38 132 34 45 131 21 16 132 54 21
Latitude Latitude Latitude Latitude
133 0 0 30 37 0 14 9 31 72 302 -68 31 26 36 29 46 55 32 2 2 29 10 32
134 0 0 32 21 31 14 9 14 72 296 -67 33 9 17 31 33 18 33 43 26 30 58 19
135 0 0 33 59 31 14 8 58 72 291 -66 34 45 37 33 13 1 35 18 35 32 39 17
136 0 0 35 31 33 14 8 42 72 286 -65 36 16 7 34 46 37 36 48 0 34 14 3
137 0 0 36 58 6 14 8 28 71 282 -64 37 41 15 36 14 37 38 12 9 35 43 7
138 0 0 38 19 36 14 8 14 71 278 -62 39 1 27 37 37 28 39 31 25 37 6 56
139 0 0 39 36 27 14 8 1 70 275 -61 40 17 6 38 55 33 40 46 12 38 25 56
140 0 0 40 49 0 14 7 49 70 272 -60 41 28 30 40 9 14 41 56 49 39 40 28
141 0 0 41 57 32 14 7 37 69 270 -59 42 35 59 41 18 51 43 3 33 40 50 52
142 0 0 43 2 21 14 7 26 68 268 -58 43 39 50 42 24 41 44 6 41 41 57 25
143 0 0 44 3 44 14 7 15 67 266 -57 44 40 17 43 26 59 45 6 29 43 0 24
144 0 0 45 1 52 14 7 5 67 264 -56 45 37 33 44 26 0 46 3 9 44 0 4
145 0 0 45 57 0 14 6 55 66 263 -55 46 31 52 45 21 58 46 56 53 44 56 38
146 0 0 46 49 19 14 6 46 65 262 -55 47 23 25 46 15 3 47 47 53 45 50 17
147 0 0 47 39 0 14 6 37 64 261 -54 48 12 23 47 5 28 48 36 20 46 41 14
148 0 0 48 26 12 14 6 28 64 261 -53 48 58 54 47 53 21 49 22 21 47 29 38
149 0 0 49 11 4 14 6 20 63 260 -52 49 43 7 48 38 53 50 6 8 48 15 38
150 0 0 49 53 45 14 6 12 62 260 -51 50 25 12 49 22 11 50 47 46 48 59 23
151 0 0 50 34 22 14 6 5 61 259 -50 51 5 14 50 3 23 51 27 24 49 41 0
152 0 0 51 13 3 14 5 58 61 259 -50 51 43 22 50 42 37 52 5 8 50 20 38
153 0 0 51 49 53 14 5 51 60 259 -49 52 19 41 51 19 59 52 41 5 50 58 23
154 0 0 52 24 59 14 5 44 59 259 -48 52 54 18 51 55 34 53 15 20 51 34 20
155 0 0 52 58 26 14 5 37 59 259 -48 53 27 17 52 29 30 53 47 59 52 8 36
156 0 0 53 30 20 14 5 31 58 259 -47 53 58 43 53 1 50 54 19 7 52 41 16
157 0 0 54 0 44 14 5 25 57 259 -46 54 28 43 53 32 40 54 48 48 53 12 25
158 0 0 54 29 44 14 5 19 57 260 -46 54 57 18 54 2 5 55 17 7 53 42 6
159 0 0 54 57 24 14 5 13 56 260 -45 55 24 35 54 30 7 55 44 7 54 10 26
160 0 0 55 23 46 14 5 8 55 260 -44 55 50 36 54 56 52 56 9 52 54 37 27
161 0 0 55 48 56 14 5 3 55 260 -44 56 15 25 55 22 23 56 34 27 55 3 13
162 0 0 56 12 56 14 4 57 54 261 -43 56 39 6 55 46 43 56 57 53 55 27 47
163 0 0 56 35 50 14 4 52 53 261 -43 57 1 40 56 9 55 57 20 14 55 51 13
164 0 0 56 57 39 14 4 48 53 262 -42 57 23 12 56 32 3 57 41 33 56 13 34
165 0 0 57 18 28 14 4 43 52 262 -42 57 43 43 56 53 8 58 1 52 56 34 51
166 0 0 57 38 17 14 4 38 52 263 -41 58 3 17 57 13 14 58 21 14 56 55 9
167 0 0 57 57 11 14 4 34 51 263 -40 58 21 55 57 32 23 58 39 41 57 14 29
168 0 0 58 15 10 14 4 29 51 264 -40 58 39 39 57 50 37 58 57 15 57 32 54
169 0 0 58 32 17 14 4 25 50 264 -39 58 56 32 58 7 57 59 13 58 57 50 25
170 0 0 58 48 33 14 4 21 50 265 -39 59 12 36 58 24 27 59 29 52 58 7 4
171 0 0 59 4 1 14 4 17 49 265 -38 59 27 51 58 40 8 59 44 59 58 22 54
172 0 0 59 18 43 14 4 13 48 266 -38 59 42 21 58 55 1 59 59 20 58 37 56
173 0 0 59 32 39 14 4 9 48 267 -37 59 56 6 59 9 9 60 12 56 58 52 12
174 0 0 59 45 51 14 4 5 47 267 -37 60 9 7 59 22 32 60 25 50 59 5 42
175 0 0 59 58 21 14 4 2 47 268 -37 60 21 27 59 35 11 60 38 3 59 18 29
176 0 0 60 10 9 14 3 58 46 269 -36 60 33 6 59 47 9 60 49 35 59 30 34
177 0 0 60 21 17 14 3 55 46 269 -36 60 44 5 59 58 27 61 0 28 59 41 58
178 0 0 60 31 47 14 3 51 45 270 -35 60 54 26 60 9 4 61 10 43 59 52 42
179 0 0 60 41 38 14 3 48 45 271 -35 61 4 9 60 19 4 61 20 21 60 2 47
180 0 0 60 50 52 14 3 44 45 271 -34 61 13 16 60 28 25 61 29 22 60 12 14
Use these links for further information:
[Planetary Occultations]
[Using the Predictions]
[Observing Details]
[Timing Details]
[Reporting Details]
[Report Form]
[Asteroid Occultation Results]
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