IOTA/IOTA-ES occultation update for
(468) Lina / TYC 6337-00937-1 on October 9/10, 2004
visible from N Morocco, Corse, mid-north Italy, Croatia, Hungary,
very SE Slovakia, W Ukraine, SE Belarus and Russia at low altitudes
Summary
In the night of October 9/10, 2004 a faint 10.5 mag star TYC 6337-00937-1 will be occulted by a 72 km asteroid (468) Lina. This update is based on USNO/Flagstaff astrometry for the asteroid and UCAC2 star position.
The updated path shows ~2 path width S shift with time ~0.2 minute earlier compared to Edwin Goffin's nominal prediction.
Updated path runs over N Morocco ~20:19.8 UT UT, Corse ~20:21.9 UT, mid-north Italy ~20:22.2 UT, Croatia ~20:22.5 UT, Hungary ~20:22.8 UT, very SE Slovakia ~20:22.9 UT, W Ukraine ~20:23.2 UT, SE Belarus ~20:23.3 UT and Russia ~20:23.4 UT at low altitudes. Please check the path chart for details.
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The event at one glimpse:
* date and approx. UT time of event: October 9, 2004 @ 20:22 UT (Europe)
* magnitude of target star: 10.5
* magnitude drop [mag]: 4.0
* estimated maximum duration [s]: 7.7
* approx. V mag of minor planet at event [mag]: 14.5
* geocentric parallax of minor planet ["]: 4.228
* apparent motion of minor planet ["/h]: 22.42
* angular distance to moon, phase of moon [deg,%]: 159, 19%
* Goffin's original chart reference: A04_1027
The occultation path with path maps:
* approximate ground width [km]: 110
* uncertainty [path widths]: 1.25
* uncertainty in time [s]: 10
* map: Overview
European 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 W Capricornus, about 1.4 degrees SSE of 5.1 mag star pi Capricorni = SAO 163592.
!!! 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 6337-00937-1
* constellation: Capricornus
* J2000 position [h,m,s; o,',"]: 20h 28m 25.4330s; -19o 32' 00.151"
* position source: UCAC2
* estimated 1-sigma accuracy ["]: 0.03" (0.02", 0.03")
* V mag [mag]: 10.47
* B-V [mag]: +0.56
* remarks:
Data for the minor planet:
* general information:
number, name: (468) Lina
approx. diameter [km]: 72
* orbital information
orbit source: calculation Manek
source of used astrometry: USNO/Flagstaff (Ron Stone)
number of used observations: 144 USNO
number of rejected observations: 0
time covered by the observations: 1996 01 30 - 2004 10 01
rms residuals ["] (RA,DE): 0.13", 0.13"
estimated positional 2-sigma accuracy at epoch of event ["]: 0.05", 0.03"
remarks:
* orbital elements
Semimajor axis = 3.13271443222143 AU
Eccentricity = 0.197641413122976
Inclination = 0.4403284147989 deg
Long. of node = 21.4051753355479 deg
Arg. of pericenter = 334.5656537724008 deg
Mean anomaly = 340.2752617208585 deg
Epoch of elements : MJD 53287.85000000 TDT (Oct 9, 2004, 20.400000 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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