IOTA/IOTA-ES occultation update for
(121) Hermione / TYC 1905-00864-1 on February 16/17, 2004
visible from Iraq, N Jordan, Syria, Cyprus, SW Turkey, Greece,
S Albania, S Italy, N Sardinia, Corse, S France and N Spain
Summary
In the night of February 16/17, 2004 a bright 9.2 mag star TYC 1905-00864-1 will be occulted by a 217 km asteroid (121) Hermione. This update is based on USNO/Flagstaff and TMO astrometry for the asteroid and UCAC2 star position.
The updated path shows ~0.5 path width north shift with time 0.1 minutes later compared to Edwin Goffin's nominal prediction.
Recomputed 08 Feb, 2004 with more recent astrometry included. Resulted in occultation time 8 seconds later and central line 3km more south of my first update. For this calculation 230km was accepted as asteroid diameter to know the limits of the largest possible path width.
Updated path runs due to north shift over Iraq ~22:23 UT, N Jordan ~22:23.9 UT, Syria ~22:24.0 UT, Cyprus ~22:24.8 UT, SW Turkey ~22:25.9 UT, Greece ~22:27.2 UT, S Albania ~22:28.0 UT, S Italy ~22:29.0 UT, N Sardinia ~22:30.3 UT, Corse ~22:30.5 UT, S France ~22:32.3 UT and N Spain around 22:33.0 UT. Please check the path chart for details.
Campaign for observation this occultation is organized by BDL and EAON.
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Clear sky and good luck !!!
The event at one glimpse:
* date and approx. UT time of event: February 16, 2004 @ 22:30 UT (Europe)
* magnitude of target star: 9.2
* magnitude drop [mag]: 3.8
* estimated maximum duration [s]: 41.1
* approx. V mag of minor planet at event [mag]: 13.0
* geocentric parallax of minor planet ["]: 3.204
* apparent motion of minor planet ["/h]: 9.55
* angular distance to moon, phase of moon [deg,%]: 178, 15%
* Goffin's original chart reference: A04_0208
The occultation path with path maps:
* approximate ground width [km]: 240
* uncertainty [path widths]: 0.3
* uncertainty in time [s]: 18
* map: Overview
European part
* remarks: Path uncertainties [1 sigma] are given according to nominal star
position errors and expected asteroid positional accuracy.
Elements for WinOccult - use 'Save as ...' to download and save these elements.
Finding charts (prepared in GUIDE8):
* occulted star is in center - labeled with cross
* labeled stars have indicated SAO numbers
* square box shows 30' field in all wider field charts
* remarks:
Target star is in mid-north Gemini, about 4.1 degrees north of 3.0 mag star epsilon Geminorum = SAO 78682.
!!! IMPORTANT !!!
Purple stars in identification chart are so called 'non-star' objects in GSC; in dense fields
the 'non-stars' are often real stars or blends of close pairs. Be careful about this.
20-degree chart
3-degree chart
0.5-degree chart
Data for the target star:
* name: TYC 1905-00864-1
* constellation: Gemini
* J2000 position [h,m,s; o,',"]: 06h 49m 15.2082s; +29o 06' 12.587"
* position source: UCAC2
* estimated accuracy ["]: 0.04" (0.03", 0.03")
* V mag [mag]: 9.21
* B-V [mag]: +1.48
* remarks: Red star.
Data for the minor planet:
* general information:
number, name: (121) Hermione
approx. diameter [km]: 230
* orbital information
orbit source: calculation Manek
source of used astrometry: USNO/Flagstaff (Ron Stone), TMO (Bill Owen)
number of used observations: 155 USNO, 49 TMO
number of rejected observations: 5
time covered by the observations: 1998 01 29 - 2004 02 07
rms residuals ["] (RA,DE): 0.08", 0.08"
estimated positional accuracy at epoch of event ["]: 0.03", 0.02"
remarks:
Calculator(s): Jan Manek
Path coordinates:
Centre Star Star Sun Path Limits Error Limits
E. Longitude Latitude U.T. Alt Az Alt Limit 1 Limit 2 Limit 3 Limit 4
...................................... shortened .............................................
o ' " o ' " h m s o o o o ' " o ' " o ' " o ' "
Latitude Latitude Latitude Latitude
72 0 0 17 13 4 22 18 58 8 298 -48 18 27 14 15 59 20 19 11 58 15 15 17
71 0 0 17 46 15 22 19 1 9 298 -49 19 0 24 16 32 33 19 45 7 15 48 31
70 0 0 18 19 17 22 19 5 10 298 -50 19 33 24 17 5 36 20 18 6 16 21 36
69 0 0 18 52 9 22 19 9 11 297 -51 20 6 13 17 38 30 20 50 54 16 54 31
68 0 0 19 24 49 22 19 14 12 297 -52 20 38 51 18 11 13 21 23 30 17 27 15
67 0 0 19 57 17 22 19 19 13 297 -52 21 11 16 18 43 44 21 55 53 17 59 48
66 0 0 20 29 32 22 19 25 14 296 -53 21 43 28 19 16 3 22 28 3 18 32 9
65 0 0 21 1 34 22 19 31 15 296 -54 22 15 26 19 48 8 22 59 59 19 4 17
64 0 0 21 33 22 22 19 37 16 295 -55 22 47 10 20 20 0 23 31 40 19 36 11
63 0 0 22 4 54 22 19 43 17 295 -56 23 18 38 20 51 37 24 3 6 20 7 50
62 0 0 22 36 11 22 19 50 18 295 -57 23 49 50 21 22 59 24 34 16 20 39 15
61 0 0 23 7 12 22 19 58 19 294 -57 24 20 46 21 54 4 25 5 8 21 10 24
60 0 0 23 37 56 22 20 5 20 294 -58 24 51 25 22 24 54 25 35 44 21 41 16
59 0 0 24 8 23 22 20 13 21 293 -59 25 21 46 22 55 26 26 6 2 22 11 51
58 0 0 24 38 32 22 20 21 22 293 -59 25 51 49 23 25 40 26 36 1 22 42 9
57 0 0 25 8 22 22 20 30 23 293 -60 26 21 33 23 55 37 27 5 42 23 12 9
56 0 0 25 37 53 22 20 39 24 292 -61 26 50 58 24 25 14 27 35 3 23 41 51
55 0 0 26 7 5 22 20 48 25 292 -61 27 20 4 24 54 33 28 4 5 24 11 13
54 0 0 26 35 57 22 20 58 26 291 -62 27 48 49 25 23 32 28 32 46 24 40 16
53 0 0 27 4 29 22 21 7 27 291 -63 28 17 14 25 52 10 29 1 7 25 8 59
52 0 0 27 32 41 22 21 17 28 290 -63 28 45 18 26 20 29 29 29 7 25 37 22
51 0 0 28 0 31 22 21 27 29 290 -64 29 13 1 26 48 27 29 56 45 26 5 23
50 0 0 28 28 0 22 21 38 30 289 -64 29 40 23 27 16 3 30 24 2 26 33 4
49 0 0 28 55 7 22 21 48 31 288 -64 30 7 23 27 43 18 30 50 57 27 0 24
48 0 0 29 21 53 22 21 59 32 288 -65 30 34 0 28 10 11 31 17 30 27 27 22
47 0 0 29 48 16 22 22 10 33 287 -65 31 0 15 28 36 43 31 43 41 27 53 58
46 0 0 30 14 17 22 22 21 34 287 -65 31 26 8 29 2 52 32 9 29 28 20 12
45 0 0 30 39 55 22 22 33 35 286 -66 31 51 38 29 28 38 32 34 53 28 46 3
44 0 0 31 5 10 22 22 45 36 286 -66 32 16 45 29 54 2 32 59 55 29 11 32
43 0 0 31 30 3 22 22 56 37 285 -66 32 41 29 30 19 2 33 24 34 29 36 38
42 0 0 31 54 32 22 23 8 37 284 -66 33 5 50 30 43 40 33 48 49 30 1 20
41 0 0 32 18 38 22 23 20 38 284 -67 33 29 47 31 7 55 34 12 41 30 25 40
40 0 0 32 42 20 22 23 33 39 283 -67 33 53 20 31 31 46 34 36 10 30 49 36
39 0 0 33 5 39 22 23 45 40 282 -67 34 16 30 31 55 13 34 59 14 31 13 9
38 0 0 33 28 34 22 23 57 41 282 -67 34 39 17 32 18 17 35 21 55 31 36 18
37 0 0 33 51 6 22 24 10 42 281 -67 35 1 39 32 40 57 35 44 12 31 59 4
36 0 0 34 13 13 22 24 23 43 280 -67 35 23 38 33 3 14 36 6 6 32 21 25
35 0 0 34 34 57 22 24 36 43 279 -67 35 45 13 33 25 7 36 27 35 32 43 23
34 0 0 34 56 17 22 24 49 44 279 -67 36 6 24 33 46 35 36 48 40 33 4 57
33 0 0 35 17 13 22 25 2 45 278 -66 36 27 11 34 7 40 37 9 22 33 26 8
32 0 0 35 37 45 22 25 15 46 277 -66 36 47 34 34 28 21 37 29 40 33 46 54
31 0 0 35 57 53 22 25 28 47 276 -66 37 7 33 34 48 38 37 49 33 34 7 16
30 0 0 36 17 38 22 25 41 47 275 -66 37 27 8 35 8 32 38 9 3 34 27 15
29 0 0 36 36 58 22 25 55 48 275 -66 37 46 20 35 28 1 38 28 9 34 46 49
28 0 0 36 55 55 22 26 8 49 274 -65 38 5 7 35 47 6 38 46 51 35 6 0
27 0 0 37 14 28 22 26 22 50 273 -65 38 23 31 36 5 48 39 5 10 35 24 47
26 0 0 37 32 37 22 26 36 51 272 -65 38 41 31 36 24 6 39 23 5 35 43 9
25 0 0 37 50 22 22 26 49 51 271 -64 38 59 8 36 41 59 39 40 36 36 1 9
24 0 0 38 7 44 22 27 3 52 270 -64 39 16 21 36 59 30 39 57 44 36 18 44
23 0 0 38 24 42 22 27 17 53 269 -64 39 33 10 37 16 36 40 14 28 36 35 56
22 0 0 38 41 16 22 27 30 53 268 -63 39 49 36 37 33 19 40 30 49 36 52 44
21 0 0 38 57 27 22 27 44 54 267 -63 40 5 39 37 49 39 40 46 46 37 9 8
20 0 0 39 13 15 22 27 58 55 266 -62 40 21 19 38 5 35 41 2 21 37 25 9
19 0 0 39 28 40 22 28 12 56 265 -62 40 36 35 38 21 8 41 17 32 37 40 46
18 0 0 39 43 41 22 28 26 56 264 -62 40 51 28 38 36 17 41 32 20 37 56 1
17 0 0 39 58 20 22 28 40 57 263 -61 41 5 58 38 51 3 41 46 46 38 10 52
16 0 0 40 12 35 22 28 54 58 262 -61 41 20 6 39 5 26 42 0 48 38 25 19
15 0 0 40 26 27 22 29 8 58 261 -60 41 33 51 39 19 27 42 14 28 38 39 24
14 0 0 40 39 57 22 29 22 59 260 -60 41 47 13 39 33 4 42 27 46 38 53 6
13 0 0 40 53 4 22 29 36 60 258 -59 42 0 12 39 46 19 42 40 41 39 6 25
12 0 0 41 5 49 22 29 50 60 257 -59 42 12 49 39 59 10 42 53 13 39 19 21
11 0 0 41 18 11 22 30 4 61 256 -58 42 25 4 40 11 40 43 5 24 39 31 54
10 0 0 41 30 11 22 30 18 62 254 -58 42 36 57 40 23 46 43 17 12 39 44 5
9 0 0 41 41 48 22 30 33 62 253 -57 42 48 27 40 35 31 43 28 38 39 55 54
8 0 0 41 53 4 22 30 47 63 252 -57 42 59 36 40 46 53 43 39 43 40 7 20
7 0 0 42 3 57 22 31 1 63 250 -56 43 10 23 40 57 53 43 50 26 40 18 23
6 0 0 42 14 28 22 31 15 64 249 -56 43 20 48 41 8 30 44 0 47 40 29 5
5 0 0 42 24 38 22 31 29 65 247 -55 43 30 51 41 18 46 44 10 46 40 39 24
4 0 0 42 34 26 22 31 43 65 246 -54 43 40 33 41 28 40 44 20 24 40 49 22
3 0 0 42 43 52 22 31 57 66 244 -54 43 49 53 41 38 12 44 29 41 40 58 57
2 0 0 42 52 57 22 32 12 66 243 -53 43 58 53 41 47 23 44 38 37 41 8 11
1 0 0 43 1 40 22 32 26 67 241 -53 44 7 30 41 56 11 44 47 11 41 17 3
0 0 0 43 10 2 22 32 40 67 239 -52 44 15 47 42 4 39 44 55 25 41 25 34
- 1 0 0 43 18 3 22 32 54 68 237 -52 44 23 43 42 12 45 45 3 17 41 33 43
- 2 0 0 43 25 43 22 33 8 68 235 -51 44 31 18 42 20 29 45 10 49 41 41 30
- 3 0 0 43 33 2 22 33 22 69 234 -50 44 38 32 42 27 53 45 18 0 41 48 56
- 4 0 0 43 39 59 22 33 37 69 232 -50 44 45 25 42 34 55 45 24 50 41 56 1
- 5 0 0 43 46 36 22 33 51 70 230 -49 44 51 57 42 41 36 45 31 20 42 2 45
- 6 0 0 43 52 52 22 34 5 70 227 -49 44 58 9 42 47 56 45 37 30 42 9 7
- 7 0 0 43 58 48 22 34 19 71 225 -48 45 4 1 42 53 55 45 43 19 42 15 9
- 8 0 0 44 4 22 22 34 33 71 223 -48 45 9 32 42 59 33 45 48 47 42 20 49
- 9 0 0 44 9 37 22 34 47 71 221 -47 45 14 42 43 4 51 45 53 56 42 26 9
- 10 0 0 44 14 30 22 35 1 72 218 -46 45 19 32 43 9 48 45 58 44 42 31 7
- 11 0 0 44 19 3 22 35 16 72 216 -46 45 24 3 43 14 24 46 3 12 42 35 45
- 12 0 0 44 23 16 22 35 30 72 213 -45 45 28 12 43 18 40 46 7 21 42 40 3
- 13 0 0 44 27 8 22 35 44 73 211 -45 45 32 2 43 22 35 46 11 9 42 43 59
...................................... shortened .............................................
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Jan Manek
Stefanik Observatory Private :
Petrin 205 Werichova 950
118 46 Praha 1 152 00 Praha 5 - Barrandov |_|_|
Czech Republic Czech Republic / \
Internet : jan.manek AT worldonline.cz |-O-O-|
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