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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 2457400.5 (2016-Jan-13.0) TDB
Reference: JPL 18 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1585035620283054 4.6224e-08  
a 3.17831334446092 2.2345e-08 au
q 2.674539358121768 1.4306e-07 au
i 2.709592377402025 5.2213e-06 deg
node 90.96876318768193 0.00012727 deg
peri 17.73046137700265 0.00012908 deg
M 125.8073063102462 2.0138e-05 deg
tp 2456677.235986909292
(2014-Jan-19.73598691)
0.00011374 JED
period 2069.63373073547
5.67
2.1826e-05
5.976e-08
d
yr
n .1739438213891448 1.8344e-09 deg/d
Q 3.682087330800073 2.5887e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1364  
   data-arc span      38655 days (105.83 yr)  
   first obs. used      1909-10-05  
   last obs. used      2015-08-05  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .47806  
   data source      ORB  
   producer      Otto Matic  
   solution date      2015-Sep-02 14:15:04  

Additional Information
 Earth MOID = 1.69129 au 
 Jupiter MOID = 1.45504 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-December); 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. 150, A75.]

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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