Update for (751) Faina - May 14/15, 2003
Update computed by Jan Manek; issued 08 May 2003 19:30 +0200 (CEST)
Jan Manek's update
IOTA/IOTA-ES occultation update for
(751) Faina / TYC 5619-01005-1 on May 14/15, 2003
visible from middle East and north Africa
Summary
In the night of May 14/15, 2003 a faint 12.4 mag star TYC 5619-01005-1
will be occulted by a 115 km asteroid (751) Faina. This update is based on
USNO/Flagstaff and TMO astrometry for the asteroid and UCAC1 star position.
The updated path shows ~10 path width south shift with time ~1.4 minute later compared to
Edwin Goffin's nominal prediction.
Updated path runs over N Iran ~22:25 UT, N Iraq ~22:26.5 UT, middle East around 22:27 UT,
grazes north Libya ~22:29.5 UT, S Tunisia ~22:30 UT, Algeria ~22:31 UT and north Morocco ~22:32 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 14, 2003 @ 22:29 UT (N Africa)
* magnitude of target star: 12.4
* magnitude drop [mag]: 0.9
* estimated maximum duration [s]: 8.4
* path description: given above
* Goffin's original chart reference: A03_0541
The occultation path:
* approximate ground width [km]: 160
* uncertainty [path widths]: 0.75
* uncertainty in time [s]: 6
* map: below
* remarks: Path uncertainties are given according to nominal star
position errors and expected asteroid positional accuracy.
Data for the target star:
* name: TYC 5619-01005-1
* constellation: Libra
* J2000 position [h,m,s; o,',"]: 15h 59m 24.6741s; -11o 28' 29.287"
* position source: recent UCAC1 position combined with Tycho-2 proper motion
* estimated accuracy ["]: 0.04" (0.03", 0.02")
* V mag [mag]: 12.4
* B-V [mag]: +?.??
* remarks:
Target star is in very east Libra, about 1.2 degrees west of 4.3 mag star xi Scorpii = SAO 159665.
Magnitude was slightly adjusted as some indications showed Tycho-2 magnitude is too faint.
!!! 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 13.5
* 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: (751) Faina
approx. diameter [km]: 115
* orbital information
orbit source: calculation Manek
source of used astrometry: USNO/Flagstaff (Ron Stone), TMO (Bill Owen)
number of used observations: 130 USNO, 11 TMO
number of rejected observations: 9 USNO, 3 TMO
time covered by the observations: 1998 02 12 - 2003 05 07
rms residuals ["] (RA,DE): 0.07", 0.08"
estimated positional accuracy at epoch of event ["]: 0.05", 0.06"
remarks:
Data for the event:
* UT date and time of least geocentric approach: 22:28.2 UT
* approx. V mag of minor planet at event [mag]: 12.7
* geocentric parallax of minor planet ["]: 4.764
* magnitude drop [mag]: 0.9
* estimated maximum duration [s]: 8.4
* apparent motion of minor planet ["/h]: 36.76
* angular distance to moon, phase of moon [deg,%]: 24, 98%
* remarks:
Elements for WinOccult:
============ cut here ===========================================
2003 May 14
751 Faina
22h 28.2m UT
19-01005-1 12.4 15 59 24.674-11 28 59.29TYC 5619-01005-1
12.7 115 8.4 1.846 -2.496 -2.26
30.554 -11.482 -157.96 18.70
22.4698 -.04243 .69243 -7.70220 -0.47411 -0.00078 -0.00072
2000 225.9883302003 511.00000302.49569578.949498 15.615678 0.153644312.549841892.158073188.665 0.08
RATE 2.4206630 .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 ' "
86 0 0 41 24 40 22 23 7 17 236 -7 42 10 12 40 39 45 43 18 45 39 34 17
84 0 0 40 59 13 22 23 12 19 235 -8 41 44 41 40 14 20 42 53 9 39 8 56
82 0 0 40 33 59 22 23 18 20 233 -10 41 19 24 39 49 9 42 27 47 38 43 50
80 0 0 40 9 0 22 23 25 22 232 -11 40 54 21 39 24 13 42 2 39 38 18 59
78 0 0 39 44 18 22 23 32 23 230 -13 40 29 36 38 59 35 41 37 48 37 54 26
76 0 0 39 19 56 22 23 39 25 229 -14 40 5 11 38 35 17 41 13 16 37 30 13
74 0 0 38 55 57 22 23 46 26 227 -15 39 41 7 38 11 22 40 49 6 37 6 23
72 0 0 38 32 21 22 23 55 27 226 -17 39 17 27 37 47 50 40 25 20 36 42 57
70 0 0 38 9 12 22 24 3 29 224 -18 38 54 13 37 24 45 40 2 0 36 19 57
68 0 0 37 46 31 22 24 12 30 222 -20 38 31 28 37 2 8 39 39 8 35 57 26
66 0 0 37 24 20 22 24 21 31 221 -21 38 9 13 36 40 1 39 16 46 35 35 26
64 0 0 37 2 41 22 24 31 33 219 -22 37 47 30 36 18 27 38 54 56 35 13 57
62 0 0 36 41 37 22 24 41 34 217 -24 37 26 21 35 57 26 38 33 40 34 53 3
60 0 0 36 21 8 22 24 51 35 215 -25 37 5 48 35 37 2 38 13 0 34 32 45
58 0 0 36 1 17 22 25 2 36 213 -26 36 45 52 35 17 15 37 52 58 34 13 4
56 0 0 35 42 6 22 25 13 37 211 -27 36 26 37 34 58 8 37 33 35 33 54 3
54 0 0 35 23 35 22 25 24 39 209 -28 36 8 2 34 39 42 37 14 54 33 35 42
52 0 0 35 5 47 22 25 36 40 207 -30 35 50 10 34 21 58 36 56 55 33 18 4
50 0 0 34 48 43 22 25 48 40 205 -31 35 33 2 34 4 58 36 39 41 33 1 10
48 0 0 34 32 25 22 26 0 41 202 -32 35 16 39 33 48 44 36 23 12 32 45 1
46 0 0 34 16 54 22 26 12 42 200 -33 35 1 4 33 33 16 36 7 31 32 29 38
44 0 0 34 2 10 22 26 25 43 197 -34 34 46 17 33 18 36 35 52 38 32 15 3
42 0 0 33 48 16 22 26 37 44 195 -34 34 32 19 33 4 45 35 38 35 32 1 18
40 0 0 33 35 13 22 26 50 44 192 -35 34 19 12 32 51 45 35 25 23 31 48 22
38 0 0 33 23 0 22 27 3 45 190 -36 34 6 57 32 39 36 35 13 3 31 36 17
36 0 0 33 11 41 22 27 16 45 187 -37 33 55 35 32 28 19 35 1 35 31 25 4
34 0 0 33 1 15 22 27 29 45 185 -37 33 45 6 32 17 55 34 51 2 31 14 44
32 0 0 32 51 43 22 27 43 46 182 -38 33 35 31 32 8 26 34 41 24 31 5 18
30 0 0 32 43 6 22 27 56 46 179 -38 33 26 52 31 59 51 34 32 41 30 56 46
28 0 0 32 35 24 22 28 9 46 176 -39 33 19 9 31 52 12 34 24 55 30 49 10
26 0 0 32 28 39 22 28 23 46 174 -39 33 12 22 31 45 28 34 18 5 30 42 29
24 0 0 32 22 51 22 28 36 46 171 -39 33 6 32 31 39 42 34 12 13 30 36 44
22 0 0 32 18 1 22 28 50 46 168 -39 33 1 40 31 34 52 34 7 20 30 31 56
20 0 0 32 14 8 22 29 3 45 165 -39 32 57 47 31 31 0 34 3 24 30 28 6
18 0 0 32 11 13 22 29 16 45 163 -39 32 54 51 31 28 6 34 0 28 30 25 13
16 0 0 32 9 16 22 29 29 44 160 -39 32 52 54 31 26 10 33 58 30 30 23 17
14 0 0 32 8 18 22 29 42 44 158 -39 32 51 56 31 25 12 33 57 32 30 22 19
12 0 0 32 8 19 22 29 55 43 155 -38 32 51 57 31 25 13 33 57 33 30 22 20
10 0 0 32 9 19 22 30 8 42 153 -38 32 52 57 31 26 12 33 58 34 30 23 18
8 0 0 32 11 17 22 30 20 42 150 -38 32 54 56 31 28 10 34 0 34 30 25 15
6 0 0 32 14 14 22 30 32 41 148 -37 32 57 54 31 31 6 34 3 33 30 28 10
4 0 0 32 18 10 22 30 45 40 146 -36 33 1 51 31 35 0 34 7 32 30 32 2
2 0 0 32 23 3 22 30 56 39 144 -36 33 6 46 31 39 52 34 12 30 30 36 53
0 0 0 32 28 55 22 31 8 38 142 -35 33 12 40 31 45 42 34 18 26 30 42 40
- 2 0 0 32 35 44 22 31 19 37 140 -34 33 19 31 31 52 30 34 25 21 30 49 25
- 4 0 0 32 43 31 22 31 30 35 138 -33 33 27 20 32 0 14 34 33 13 30 57 6
- 6 0 0 32 52 14 22 31 41 34 136 -32 33 36 5 32 8 54 34 42 2 31 5 43
- 8 0 0 33 1 53 22 31 51 33 134 -31 33 45 47 32 18 31 34 51 48 31 15 15
- 10 0 0 33 12 27 22 32 1 32 133 -30 33 56 24 32 29 2 35 2 30 31 25 42
- 12 0 0 33 23 56 22 32 11 30 131 -29 34 7 56 32 40 28 35 14 7 31 37 4
- 14 0 0 33 36 18 22 32 20 29 130 -28 34 20 22 32 52 47 35 26 38 31 49 18
- 16 0 0 33 49 33 22 32 29 27 128 -27 34 33 41 33 5 58 35 40 3 32 2 25
- 18 0 0 34 3 40 22 32 37 26 126 -26 34 47 51 33 20 1 35 54 19 32 16 23
- 20 0 0 34 18 37 22 32 45 25 125 -24 35 2 53 33 34 55 36 9 27 32 31 11
- 22 0 0 34 34 24 22 32 53 23 124 -23 35 18 43 33 50 38 36 25 24 32 46 48
- 24 0 0 34 50 59 22 33 0 22 122 -22 35 35 22 34 7 8 36 42 9 33 3 13
- 26 0 0 35 8 20 22 33 6 20 121 -20 35 52 48 34 24 26 36 59 42 33 20 25
- 28 0 0 35 26 27 22 33 12 18 120 -19 36 11 0 34 42 29 37 18 0 33 38 21
...................................... 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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