IOTA/IOTA-ES occultation update for
(419) Aurelia / TYC 0628-00020-1 on November 6/7, 2005
visible from Belarus, Lithuania, S Sweden, Denmark, UK, N Ireland,
USA and Mexico
Summary
In the night of November 6/7, 2005 a faint 12.0 mag star TYC 0628-00020-1 will be occulted by a 133 km asteroid (419) Aurelia. This update is based on USNO/Flagstaff and TMO astrometry for the asteroid and UCAC2 star position.
The updated path shows ~3 path width north shift with time ~0.3 minutes later compared to Edwin Goffin's nominal prediction.
Updated path runs over Belarus ~2:41.0 UT, Lithuania ~2:41.1 UT, S Sweden ~2:41.4 UT, Denmark ~2:41.5 UT, UK ~2:42.0 UT, N Ireland ~2:42.2 UT, USA ~2:48.7-2:50.2 UT and Mexico around 2:52.5 UT. Please check the path chart for details.
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Clear sky and good luck !!!
The event at one glimpse:
* date and approx. UT time of event: November 7, 2005 @ 02:41 UT (Europe)
* magnitude of target star: 12.0
* magnitude drop [mag]: 1.0
* estimated maximum duration [s]: 11.0
* approx. V mag of minor planet at event [mag]: 12.5
* geocentric parallax of minor planet ["]: 4.819
* apparent motion of minor planet ["/h]: 32.86
* angular distance to moon, phase of moon [deg,%]: 101, 28%
* Goffin's original chart reference: A05_1151
The occultation path with path maps:
* approximate ground width [km]: 150
* uncertainty [path widths]: 0.5
* uncertainty in time [s]: 11
* map: Overview
European part
American part
* remarks: Path uncertainties [2 sigmas] 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
* (smaller) square box shows 30' field in all wider field charts
* (larger) square box shows 3° field in wide field charts
* remarks:
Target star is in very SW Aries, about 3.6 degrees N of 4.3 mag star omicron Piscii = SAO 110110.
!!! 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.
40-degree chart
3-degree chart
0.5-degree chart
Data for the target star:
* name: TYC 0628-00020-1
* constellation: Aries
* J2000 position [h,m,s; o,',"]: 01h 48m 06.9967s; +12d 44' 51.082"
* position source: UCAC2
* estimated 1-sigma accuracy ["]: 0.019", 0.018"
* V mag [mag]: 12.01 (averaged ASAS3-NSVS V-mag)
* B-V [mag]: +0.66 (Tycho-2)
* remarks:
Data for the minor planet:
* general information:
number, name: (419) Aurelia
approx. diameter [km]: 133
* orbital information
orbit source: calculation Manek
source of used astrometry: USNO/Flagstaff (Ron Stone), TMO (Bill Owen)
number of used observations: 131 USNO, 41 TMO
number of rejected observations: 0
time covered by the observations: 1997 11 21 - 2005 09 17
estimated positional 2-sigma accuracy at epoch of event ["]: 0.084", 0.034", 73 deg
remarks:
* orbital elements
Semimajor axis = 2.59640656394484
Eccentricity = 0.252388519978210
Inclination = 3.9246444466250 deg
Long. of node = 229.3556959727713 deg
Arg. of pericenter = 44.5739869162562 deg
Mean anomaly = 93.7572456944753 deg
Epoch of elements : MJD 53681.11000000 TDT (Nov 7, 2005, 2.640000 h)
Path coordinates: click here
Calculator(s): Jan Manek
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Jan Manek
Werichova 950
152 00 Praha 5 - Barrandov |_|_|
Czech Republic / \
Internet : jan.manek AT worldonline.cz |-O-O-|
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