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

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For accurate long-term ephemerides, please instead use our Horizons system.This orbit viewer was implemented using two-body methods, and hence should not be used for determining accurate long-term trajectories (over several years or decades) or planetary encounter circumstances.


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Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 30 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1577318646634878 3.0722e-08  
a 3.181050573213084 1.4717e-08 au
q 2.679297534711327 9.9423e-08 au
i 2.709072863955115 3.5901e-06 deg
node 90.95975029142846 9.1737e-05 deg
peri 17.53142636688879 9.2815e-05 deg
M 334.5946027105524 1.3934e-05 deg
tp 2458746.743905800437
(2019-Sep-20.24390580)
8.0447e-05 TDB
period 2072.307922931998
5.67
1.4381e-05
3.937e-08
d
yr
n .1737193570589911 1.2055e-09 deg/d
Q 3.68280361171484 1.7038e-08 au
  Orbit Determination Parameters
   # obs. used (total)      2258  
   data-arc span      40237 days (110.16 yr)  
   first obs. used      1909-10-05  
   last obs. used      2019-12-04  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .44762  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Dec-13 21:55:37  

Additional Information
 Earth MOID = 1.69644 au 
 Jupiter MOID = 1.44841 au 
 T_jup = 3.178 
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Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 12.0   n/a MPO502203  
diameter diameter 21.601 km 0.387 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
rotation period rot_per 5.336 h n/a LCDB (Rev. 2019-January); 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.]
geometric albedo albedo 0.072   0.015 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

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

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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 | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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