Update for (814) Tauris - May 22/23, 2003
Update computed by Jan Manek; issued 21 May 2003 23:24 +0200 (CEST)
Jan Manek's update
IOTA/IOTA-ES occultation update for
(814) Tauris / TAC -03 11368 on May 22/23, 2003
visible from S Russia, Ukraine, S Poland, N Hungary, Slovakia,
S Czechia, N Austria, S Germany and N France
Summary
In the night of May 22/23, 2003 a faint 11.4 mag star TAC -03 11368
will be occulted by a 116 km asteroid (814) Tauris. This update is based on
USNO/Flagstaff and TMO astrometry for the asteroid and UCAC2 star position.
The updated path shows ~5 path width north shift with time ~0.5 minute earlier compared to
Edwin Goffin's nominal prediction.
Updated path runs over S Russia ~23:14.0 UT, Ukraine ~23:14.6 UT, S Poland, N Hungary and Slovakia around 23:15.4 UT,
S Czechia and N Austria ~23:15.7 UT, S Germany ~23:16.2 UT and N France ~23:16.6 UT.
Please check the path chart for details.
Clear sky and good luck !!!
The event at one glimpse:
* date and approx. UT time of event: May 22, 2003 @ 23:16 UT (Europe)
* magnitude of target star: 11.4
* magnitude drop [mag]: 3.1
* estimated maximum duration [s]: 6.5
* path description: given above
* Goffin's original chart reference: A03_0547
The occultation path:
* approximate ground width [km]: 190
* uncertainty [path widths]: 1.5
* uncertainty in time [s]: 8
* map: below
* remarks: Path uncertainties are given according to nominal star
position errors and expected asteroid positional accuracy.
Data for the target star:
* name: TAC -03 11368 = GSC 5022-0722
* constellation: Libra
* J2000 position [h,m,s; o,',"]: 15h 49m 04.5020s; -03o 44' 53.836"
* position source: recent UCAC2 beta
* estimated accuracy ["]: 0.03" (0.02", 0.02")
* V mag [mag]: 11.36 (TAC)
* B-V [mag]: +0.61
* remarks:
Target star is in very north Libra, only 21' SW of 3.5 mag star mu Serpentis = SAO 140787
or 5' NE od 5.5 mag star SAO 140775.
!!! 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.
Close finding chart (prepared in GUIDE8):
* occulted star is in center - labeled with cross
* field is 3.0x3.0 degrees
* limiting magnitude is 13.0
* labeled stars have indicated SAO numbers
* remarks: Second chart shows 30' blowup to show correctly the star in field.
Data for the minor planet:
* general information:
number, name: (814) Tauris
approx. diameter [km]: 116
* orbital information
orbit source: calculation Manek
source of used astrometry: USNO/Flagstaff (Ron Stone), TMO (Bill Owen)
number of used observations: 114 USNO, 30 TMO
number of rejected observations: 16 USNO, 3 TMO
time covered by the observations: 1998 04 23 - 2003 05 11
rms residuals ["] (RA,DE): 0.07", 0.09"
estimated positional accuracy at epoch of event ["]: 0.06", 0.08"
remarks:
Data for the event:
* UT date and time of least geocentric approach: 23:16.4 UT
* approx. V mag of minor planet at event [mag]: 14.4
* geocentric parallax of minor planet ["]: 3.012
* magnitude drop [mag]: 3.1
* estimated maximum duration [s]: 6.5
* apparent motion of minor planet ["/h]: 30.11
* angular distance to moon, phase of moon [deg,%]: 96, 51%
* remarks:
Elements for WinOccult:
============ cut here ===========================================
2003 May 22
814 Tauris
23h 16.4m UT
-03 11368 11.4 15 49 4.502- 3 44 53.84TAC -03 11368
14.4 116 6.5 2.920 -2.011 -0.92
8.001 -3.747 -169.93 20.45
23.2732 -.02398 .78624 -9.99532 -0.30386 0.00016 -0.00165
2000 230.5544392003 521.00000297.24273188.866702 21.838970 0.309528173.149374362.174554278.745 0.15
RATE 1.7634680 .0000000 .0000000 .0000000 .00000000 .00000000 .00000000
============ cut here ===========================================
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
Latitude Latitude Latitude Latitude
...................................... shortened .............................................
o ' " o ' " h m s o o o o ' " o ' " o ' " o ' "
56 0 0 51 6 15 23 13 29 22 232 -8 51 58 11 50 15 19 54 37 20 47 50 42
55 0 0 51 2 3 23 13 31 23 231 -9 51 53 58 50 11 7 54 33 6 47 46 31
54 0 0 50 57 51 23 13 33 23 230 -9 51 49 46 50 6 55 54 28 53 47 42 20
53 0 0 50 53 41 23 13 36 24 230 -10 51 45 36 50 2 45 54 24 41 47 38 11
52 0 0 50 49 32 23 13 39 24 229 -10 51 41 26 49 58 37 54 20 31 47 34 3
51 0 0 50 45 25 23 13 41 25 228 -11 51 37 19 49 54 30 54 16 22 47 29 57
50 0 0 50 41 19 23 13 44 25 227 -11 51 33 12 49 50 24 54 12 15 47 25 52
49 0 0 50 37 14 23 13 47 26 226 -11 51 29 8 49 46 20 54 8 9 47 21 49
48 0 0 50 33 12 23 13 50 26 225 -12 51 25 5 49 42 18 54 4 5 47 17 48
47 0 0 50 29 11 23 13 52 27 224 -12 51 21 3 49 38 17 54 0 3 47 13 48
46 0 0 50 25 12 23 13 55 27 223 -13 51 17 4 49 34 19 53 56 2 47 9 50
45 0 0 50 21 14 23 13 58 28 222 -13 51 13 6 49 30 22 53 52 3 47 5 54
44 0 0 50 17 19 23 14 1 28 221 -14 51 9 11 49 26 27 53 48 6 47 2 1
43 0 0 50 13 26 23 14 5 29 220 -14 51 5 17 49 22 34 53 44 11 46 58 9
42 0 0 50 9 35 23 14 8 29 219 -14 51 1 26 49 18 44 53 40 19 46 54 19
41 0 0 50 5 46 23 14 11 29 218 -15 50 57 37 49 14 55 53 36 28 46 50 32
40 0 0 50 2 0 23 14 14 30 217 -15 50 53 50 49 11 9 53 32 40 46 46 47
39 0 0 49 58 16 23 14 17 30 216 -15 50 50 5 49 7 25 53 28 54 46 43 4
38 0 0 49 54 34 23 14 21 31 215 -16 50 46 23 49 3 44 53 25 10 46 39 24
37 0 0 49 50 55 23 14 24 31 214 -16 50 42 44 49 0 5 53 21 29 46 35 46
36 0 0 49 47 18 23 14 27 32 213 -16 50 39 7 48 56 29 53 17 51 46 32 11
35 0 0 49 43 44 23 14 31 32 212 -17 50 35 32 48 52 55 53 14 15 46 28 38
34 0 0 49 40 13 23 14 34 32 211 -17 50 32 1 48 49 25 53 10 42 46 25 9
33 0 0 49 36 45 23 14 38 33 210 -17 50 28 32 48 45 57 53 7 12 46 21 42
32 0 0 49 33 19 23 14 41 33 208 -18 50 25 6 48 42 31 53 3 44 46 18 18
31 0 0 49 29 56 23 14 45 33 207 -18 50 21 43 48 39 9 53 0 20 46 14 57
30 0 0 49 26 37 23 14 49 34 206 -18 50 18 23 48 35 50 52 56 58 46 11 39
29 0 0 49 23 20 23 14 52 34 205 -18 50 15 6 48 32 34 52 53 40 46 8 23
28 0 0 49 20 7 23 14 56 34 204 -19 50 11 52 48 29 21 52 50 25 46 5 12
27 0 0 49 16 57 23 15 0 35 203 -19 50 8 41 48 26 11 52 47 12 46 2 3
26 0 0 49 13 50 23 15 4 35 202 -19 50 5 34 48 23 5 52 44 4 45 58 57
25 0 0 49 10 46 23 15 7 35 201 -19 50 2 30 48 20 1 52 40 58 45 55 55
24 0 0 49 7 46 23 15 11 35 199 -20 49 59 29 48 17 1 52 37 56 45 52 56
23 0 0 49 4 49 23 15 15 36 198 -20 49 56 32 48 14 5 52 34 57 45 50 1
22 0 0 49 1 56 23 15 19 36 197 -20 49 53 38 48 11 12 52 32 2 45 47 9
21 0 0 48 59 6 23 15 23 36 196 -20 49 50 48 48 8 23 52 29 11 45 44 21
20 0 0 48 56 20 23 15 27 36 195 -20 49 48 1 48 5 37 52 26 23 45 41 36
19 0 0 48 53 37 23 15 31 37 193 -20 49 45 19 48 2 55 52 23 39 45 38 55
18 0 0 48 50 59 23 15 35 37 192 -21 49 42 39 48 0 17 52 20 58 45 36 18
17 0 0 48 48 24 23 15 39 37 191 -21 49 40 4 47 57 42 52 18 22 45 33 44
16 0 0 48 45 53 23 15 43 37 190 -21 49 37 33 47 55 12 52 15 49 45 31 15
15 0 0 48 43 26 23 15 47 37 189 -21 49 35 5 47 52 45 52 13 20 45 28 49
14 0 0 48 41 3 23 15 51 37 187 -21 49 32 42 47 50 22 52 10 56 45 26 27
13 0 0 48 38 43 23 15 55 38 186 -21 49 30 22 47 48 3 52 8 35 45 24 9
12 0 0 48 36 28 23 15 59 38 185 -21 49 28 7 47 45 48 52 6 18 45 21 55
11 0 0 48 34 17 23 16 3 38 184 -21 49 25 55 47 43 38 52 4 6 45 19 45
10 0 0 48 32 10 23 16 7 38 182 -21 49 23 48 47 41 31 52 1 57 45 17 39
9 0 0 48 30 7 23 16 11 38 181 -21 49 21 45 47 39 28 51 59 53 45 15 38
8 0 0 48 28 9 23 16 15 38 180 -21 49 19 46 47 37 30 51 57 53 45 13 40
7 0 0 48 26 15 23 16 19 38 179 -21 49 17 51 47 35 36 51 55 57 45 11 47
6 0 0 48 24 25 23 16 23 38 177 -21 49 16 1 47 33 46 51 54 6 45 9 58
5 0 0 48 22 39 23 16 28 38 176 -21 49 14 15 47 32 1 51 52 19 45 8 13
4 0 0 48 20 58 23 16 32 38 175 -21 49 12 34 47 30 20 51 50 37 45 6 33
3 0 0 48 19 21 23 16 36 38 174 -21 49 10 56 47 28 43 51 48 59 45 4 57
2 0 0 48 17 48 23 16 40 38 172 -21 49 9 24 47 27 11 51 47 25 45 3 25
1 0 0 48 16 20 23 16 44 38 171 -21 49 7 56 47 25 44 51 45 57 45 1 58
0 0 0 48 14 57 23 16 48 38 170 -21 49 6 32 47 24 20 51 44 32 45 0 36
- 1 0 0 48 13 38 23 16 52 38 169 -21 49 5 13 47 23 2 51 43 12 44 59 17
- 2 0 0 48 12 24 23 16 56 37 167 -21 49 3 58 47 21 48 51 41 57 44 58 4
- 3 0 0 48 11 14 23 17 0 37 166 -21 49 2 48 47 20 38 51 40 47 44 56 55
- 4 0 0 48 10 9 23 17 4 37 165 -20 49 1 43 47 19 33 51 39 41 44 55 50
- 5 0 0 48 9 8 23 17 8 37 164 -20 49 0 43 47 18 33 51 38 40 44 54 50
- 6 0 0 48 8 13 23 17 12 37 163 -20 48 59 47 47 17 37 51 37 43 44 53 55
- 7 0 0 48 7 22 23 17 17 37 161 -20 48 58 55 47 16 46 51 36 52 44 53 4
- 8 0 0 48 6 35 23 17 21 36 160 -20 48 58 9 47 16 0 51 36 5 44 52 18
- 9 0 0 48 5 53 23 17 25 36 159 -20 48 57 27 47 15 18 51 35 23 44 51 37
- 10 0 0 48 5 17 23 17 28 36 158 -19 48 56 50 47 14 41 51 34 45 44 51 0
- 11 0 0 48 4 44 23 17 32 36 157 -19 48 56 18 47 14 9 51 34 13 44 50 28
...................................... shortened .............................................
----------------------------------------------------------------------------
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@worldonline.cz |-O-O-|
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