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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 ]

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Orbit Diagram
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Note: This Java-based orbit viewer will eventually be retired.

Note: Make sure you have Java enabled on your browser to see the applet. This applet is provided as a 3D orbit visualization tool. The applet 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. For accurate long-term ephemerides, please instead use our Horizons system.

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Orbit Viewer

Additional Notes: the orbits shown in the applet are color coded. The planets are white lines, and the asteroid/comet is a blue line. The bright white line indicates the portion of the orbit that is above the ecliptic plane, and the darker portion is below the ecliptic plane. Likewise for the asteroid/comet orbit, the light blue indicates the portion above the ecliptic plane, and the dark blue the portion below the ecliptic plane.

Orbit Viewer applet originally written and kindly provided by Osamu Ajiki (AstroArts), and further modified by Ron Baalke (JPL).


Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 21 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2366561182436488 4.0439e-08  
a 2.278621627276161 6.6682e-09 au
q 1.739371878018958 9.0894e-08 au
i 5.071359369710088 4.5699e-06 deg
node 233.5149181709297 4.5506e-05 deg
peri 113.2555086400546 4.6355e-05 deg
M 48.94083079125852 1.0157e-05 deg
tp 2458829.704829492123
(2019-Dec-12.20482949)
3.5042e-05 TDB
period 1256.338733706538
3.44
5.5148e-06
1.51e-08
d
yr
n .286546924282039 1.2578e-09 deg/d
Q 2.817871376533364 8.2463e-09 au
  Orbit Determination Parameters
   # obs. used (total)      1288  
   data-arc span      15073 days (41.27 yr)  
   first obs. used      1978-09-30  
   last obs. used      2020-01-06  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .55805  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Jan-28 20:31:56  

Additional Information
 Earth MOID = .740562 au 
 Jupiter MOID = 2.63457 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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