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JPL Small-Body Database Browser
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6657 Otukyo (1992 WY)
Classification: Main-belt Asteroid          SPK-ID: 2006657
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 19 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2368958771070314 4.685e-08  
a 2.279256585250941 7.6969e-09 au
q 1.739310097335942 1.0447e-07 au
i 5.071849337026855 4.8501e-06 deg
node 233.5203583455788 4.725e-05 deg
peri 113.2006287036266 4.8155e-05 deg
M 294.3865550371351 1.1287e-05 deg
tp 2458829.575474056747
(2019-Dec-12.07547406)
4.0116e-05 TDB
period 1256.863905059438
3.44
6.3665e-06
1.743e-08
d
yr
n .2864271927539961 1.4509e-09 deg/d
Q 2.81920307316594 9.5203e-09 au
  Orbit Determination Parameters
   # obs. used (total)      1190  
   data-arc span      14474 days (39.63 yr)  
   first obs. used      1978-09-30  
   last obs. used      2018-05-17  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .55249  
   source      ORB  
   producer      Otto Matic  
   solution date      2018-Oct-03 16:31:24  

Additional Information
 Earth MOID = .739594 au 
 Jupiter MOID = 2.62964 au 
 T_jup = 3.564 
[ show covariance matrix ]

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 14.8   n/a MPO324369  
diameter diameter 2.707 km 0.200 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.348   0.067 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

6657 Otukyo           Discovered 1992 Nov. 17 by A. Sugie at Dynic Astronomical Observatory.
The palace of emperor Tenchi was moved to Otukyo (modern Otsu city, Shiga prefecture) in the seventh century.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20010509/MPCPages.arcLast Updated: 2009-05-11

[ show close-approach data ]
Alternate Designations
 1992 WY = 1978 TB1 = 1985 VR1 = 1991 GW9 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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