IOTA/IOTA-ES occultation update for
(105) Artemis / 2UCAC 29943970 on December 9/10, 2007
visible from S Ireland, S England, Netherlands, N Germany and Poland
Summary
In the night of December 9/10, 2007 a faint 12.0 mag star 2UCAC 29943970 will be occulted by a 116 km asteroid (105) Artemis. This update is based on USNO/Flagstaff and TMO astrometry for the asteroid and UCAC2 star position.
Updated path runs over S Ireland, S England, Netherlands, N Germany and Poland. 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: December 9/10, 2007 @ 22:37:30 UT (Europe)
* magnitude of target star: 12.0
* magnitude drop [mag]: 1.9
* estimated maximum duration [s]: 15.6
* approx. V mag of minor planet at event [mag]: 13.7
* geocentric parallax of minor planet ["]: 3.974
* angular distance to moon, phase of moon [deg,%]: 103, 00%
* Goffin's original chart reference: A07_12019
The occultation path with path maps:
* approximate ground width [km]: 200
* uncertainty [path widths]: 0.66
* uncertainty in time [s]: 15
* 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
* (smaller) square box shows 30' field in all wider field charts
* (larger) square box shows 3° field in wide field charts
* remarks:
!!! 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: 2UCAC 29943970
* constellation: Cetus
* J2000 position [h,m,s; o,',"]: 00h 26m 46.2604s; -05d 27' 49.303"
* position source: UCAC2
* estimated 1-sigma accuracy ["]: 0.063", 0.064"
* V mag [mag]: 12.04 (ASAS/NSVS)
* B mag [mag]: 12.5 (estimate)
* remarks:
Data for the minor planet:
* general information:
number, name: (105) Artemis
approx. diameter [km]: 116
* orbital information
orbit source: calculation Manek
source of used astrometry: USNO/Flagstaff, TMO (Bill Owen)
number of used observations: 244
time covered by the observations: 1997 11 22 - 2007 10 20
estimated positional 1-sigma accuracy at epoch of event ["]: 0.021", 0.015", 88 deg
remarks:
* orbital elements
Semimajor axis = 2.37367024011929 AU
Eccentricity = 0.176185528209470
Inclination = 21.4596733324508 deg
Long. of node = 188.3521775114468 deg
Arg. of pericenter = 56.5099973044464 deg
Mean anomaly = 127.0560703954344 deg
Epoch of elements : MJD 54443.94000000 TDT (Dec 9, 2007, 22.560000 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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