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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 2457600.5 (2016-Jul-31.0) TDB
Reference: JPL 18 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1583383326119796 4.6218e-08  
a 3.178716381633287 2.2313e-08 au
q 2.675403729919087 1.4305e-07 au
i 2.709395166316385 5.2208e-06 deg
node 90.96954948428755 0.00012728 deg
peri 17.73720116051589 0.00012909 deg
M 160.5938907313738 2.0278e-05 deg
tp 2456677.072899086383
(2014-Jan-19.57289909)
0.0001139 JED
period 2070.027413962875
5.67
2.1796e-05
5.967e-08
d
yr
n .1739107402982714 1.8311e-09 deg/d
Q 3.682029033347487 2.5846e-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 = 1.69077 au 
 Jupiter MOID = 1.45388 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. 2016-February); 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. (2016) 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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