IOTA/IOTA-ES occultation update for
(426) Hippo / TYC 0576-00199-1 on June 11/12, 2005
not visible from anywhere - MISS
Summary
In the night of June 11/12, 2005 a faint 11.1 mag star TYC 0576-00199-1 will be occulted by a 134 km asteroid (426) Hippo. This update is based on USNO/Flagstaff and TMO astrometry for the asteroid and UCAC2 star position.
The updated path shows ~12 path width W shift with time 1.2 minutes earlier compared to Edwin Goffin's nominal prediction.
Updated path completely miss Earth globe. No chance for anyone. Please check the path chart for details.
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The event at one glimpse:
* date and approx. UT time of event: June 12, 2005 @ 01:23 UT (Europe)
* magnitude of target star: 11.1
* magnitude drop [mag]: 3.4
* estimated maximum duration [s]: 9.0
* approx. V mag of minor planet at event [mag]: 14.4
* geocentric parallax of minor planet ["]: 2.988
* apparent motion of minor planet ["/h]: 25.20
* angular distance to moon, phase of moon [deg,%]: 148, 23%
* Goffin's original chart reference: A05_0644
The occultation path with path maps:
* approximate ground width [km]: --
* uncertainty [path widths]: 0.8
* uncertainty in time [s]: 20
* 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 Pisces.
!!! 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 0576-00199-1
* constellation: Pisces
* J2000 position [h,m,s; o,',"]: 23h 05m 06.9346s; +01d 10' 09.977"
* position source: UCAC2
* estimated 1-sigma accuracy ["]: 0.025" (0.019", 0.017")
* R mag [mag]: 11.09
* B-V [mag]: +0.86
* remarks:
Data for the minor planet:
* general information:
number, name: (426) Hippo
approx. diameter [km]: 134
* orbital information
orbit source: calculation Manek
source of used astrometry: USNO/Flagstaff (Ron Stone), TMO (Bill Owen)
number of used observations: 127 USNO, 2 TMO
number of rejected observations: 0
time covered by the observations: 1998 02 24 - 2005 06 05
estimated positional 2-sigma accuracy at epoch of event ["]: 0.076", 0.034", 50 deg
remarks:
* orbital elements
Semimajor axis = 2.88752101017133
Eccentricity = 0.104954009017279
Inclination = 19.5387011019885 deg
Long. of node = 311.7321838795187 deg
Arg. of pericenter = 218.9733334180709 deg
Mean anomaly = 154.7591651299496 deg
Epoch of elements : MJD 53533.06000000 TDT (Jun 12, 2005, 1.440000 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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