(753) Tiflis / TYC 1964-00784-1 event on 2012 Jan 02, 15:02 UT
Visible from Japan, China
Summary
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On 2012 Jan 02 UT, the 27 km diameter asteroid (753) Tiflis will occult a 11.3
mag star in the constellation Leo for observers along a path across Japan,
China.
In the case of an occultation, the combined light of the asteroid and the star
will drop by 3.2 mag to 14.4 mag (the magnitude of the asteroid) for at most 3.4
seconds.
This update is based on UNSO/Flagstaff astrometry for the asteroid kindly
provided by Alice Monet, historical astrometry from the MPC files (via AstDys),
and the following catalogs for the star position: UCAC.
The event at a glimpse
----------------------
* Rank: 40
* date and approx. time of event: 2012 Jan 02, 14:50 - 2012 Jan 02, 15:14 UT
* geocentric midpoint of event [JD]: 2455929.1264
* magnitude of target star: 11.3
* magnitude drop [mag]: 3.2
* estimated maximum duration : 3.4
* Moon: 62 % sunlit, 114� distance
* Sun: 138� distance
* rough path description: Japan, China
Data for the target star
------------------------
* name: TYC 1964-00784-1
* constellation : Leo
* J2000 position with proper motion to date of event [h,m,s ; �,',"]
RA: 09 55 01.8490 DE: +26 58 23.490
* position source: mpos:UCAC2 pm:UCAC2
* standard error: RA,DE ["]: ( .027, .022 )
* V mag [mag]: 11.3
* B mag [mag]: 11.8
* Diameter [mas]: 0
* remarks:
Data for the minor planet
-------------------------
* general information:
(number) name: (753) Tiflis
approx. diameter [km]: 27
approx. diameter ["]: .020
distance from Earth [AU]: 1.82600
* orbital information:
orbit source: Preston
date of fit: 2011 Dec 15
source of used astrometry: FASTT MPC (via Astdys)
number of used observations: 1136
number of rejected observations: 59
time covered by the observations: 1907 Nov 07 - 2011 Dec 11
1 sigma uncertainty ellipse (major, minor, PA): 0.024, 0.019, 111�
remarks:
* orbital elements for (753) Tiflis :
Mean anomaly = 243.13423523 deg
Arg. of pericenter = 203.05124996 deg
Long. of node = 61.42745929 deg
Inclination = 10.09329887 deg
Eccentricity = 0.22226179
Semimajor axis = 2.32801486 AU
Perihelion dist = 1.81058611 AU
Mag: H = 10.07, G = 0.15
Epoch of elements : MJD 55928.62700000 TDT
(2012 Jan 02.627)
------ occelmnt file for Occult BEGIN -----------------------------------
2012 Jan 2
753 Tiflis
15h 2.0m UT
11.3 9 55 1.849 26 58 23.49TYC 1964-00784-1 11.8
14.4 27 3.4 1.826 -0.820 18.52
-178.4141 26.968 -44.54 -22.93
15.0336 -0.35813 -0.21150 -2.27072 3.84351 -0.00391 0.00033
2000 240.74044920111225.00000203.051250 61.427459 10.0932990.22226179 2.3280149 1.810586110.2 5.00.15
RATE 2.7747610 0.000000 0.000000 0.000000 0.0000000 0.0000000 0.0000000
Meas 0.036 0.029 99 2.64 0.033 0 0 0 0 055911.0020120102_0784-1
------ occelmnt file for Occult END -----------------------------------
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