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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 ]

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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.


Orbital Elements at Epoch 2459396.5 (2021-Jul-01.0) TDB
Reference: JPL 28 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2367890923428486 3.7898e-08  
a 2.279028695626946 6.5727e-09 au
q 1.739379559366135 8.4641e-08 au
i 5.070713606236953 3.8115e-06 deg
node 233.4995463897804 4.2646e-05 deg
peri 113.3249203808815 4.3385e-05 deg
M 162.3144162619631 1.0251e-05 deg
tp 2458829.898512212359
(2019-Dec-12.39851221)
3.4274e-05 TDB
period 1256.675409991607
3.44
5.4364e-06
1.488e-08
d
yr
n .286470155409824 1.2393e-09 deg/d
Q 2.818677831887756 8.1291e-09 au
  Orbit Determination Parameters
   # obs. used (total)      1560  
   data-arc span      15530 days (42.52 yr)  
   first obs. used      1978-09-30  
   last obs. used      2021-04-07  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .53694  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Jul-08 15:13:14  

Additional Information
 Earth MOID = .739767 au 
 Jupiter MOID = 2.6346 au 
 T_jup = 3.564 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 14.84   n/a MPCxxxxx  
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

Alternate Designations
 1992 WY = 1978 TB1 = 1985 VR1 = 1991 GW9 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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