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5193 Tanakawataru (1992 ET)
Classification: Main-belt Asteroid          SPK-ID: 2005193
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2457000.5 (2014-Dec-09.0) TDB
Reference: JPL 17 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1587606526499313 4.6261e-08  
a 3.17886536294254 2.2586e-08 AU
q 2.674186623235522 1.4347e-07 AU
i 2.709603533957259 5.227e-06 deg
node 90.97040902107616 0.00012738 deg
peri 17.78655960376275 0.00012919 deg
M 56.14859825839336 1.9894e-05 deg
tp 2456677.618586237514
(2014-Jan-20.11858624)
0.00011356 JED
period 2070.17294393666
5.67
2.2063e-05
6.041e-08
d
yr
n .173898514640724 1.8534e-09 deg/d
Q 3.683544102649558 2.6172e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      1357  
   data-arc span      38609 days (105.71 yr)  
   first obs. used      1909-10-05  
   last obs. used      2015-06-20  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .47796  
   data source      ORB  
   producer      Otto Matic  
   solution date      2015-Jul-06 11:50:51  

Additional Information
 Earth MOID = 1.69102 AU 
 T_jup = 3.179 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 11.9 mag n/a MPO296177  
rotation period rot_per 5.3362 h n/a LCDB (Rev. 2015-July); Warner et al., 2009 Result based on less than full coverage, so that the period may be wrong by 30 percent or so.
Published Reference List:
[Waszczak, A.; Chang, C.-K.; Ofeck, E.O.; Laher, F.; et al. (2015) Astron. J., in press.]

5193 Tanakawataru           Discovered 1992 Mar. 7 by S. Ueda and H. Kaneda at Kushiro.
Wataru Tanaka (b. 1939) was a professor at the National Astronomical Observatory of Japan who specialized in spectroscopic studies of planets and late-type stars.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20070601/MPCPages.arcLast Updated: 2007-06-06

[ show close-approach data ]
Alternate Designations
 1992 ET = 1952 DQ = 1952 FG = 1973 YY1 = 1975 FQ = 1979 YO8 = 1984 UQ4 = 1989 RA5 = 1990 VA14 = 1990 WF13 = A909 TD 
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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