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7274 Washioyama (1982 FC)
Classification: Main-belt Asteroid          SPK-ID: 2007274
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 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 41 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1403899433839995 2.4362e-08  
a 2.326557130512724 6.4377e-09 au
q 1.999931906680403 5.7436e-08 au
i 10.73978703525855 9.1646e-07 deg
node 25.12203185489906 3.8979e-06 deg
peri 181.3387621765886 6.0779e-06 deg
M 309.6283986731875 5.4494e-06 deg
tp 2459381.864492806554
(2021-Jun-16.36449281)
2.0079e-05 TDB
period 1296.191022134632
3.55
5.3799e-06
1.473e-08
d
yr
n .2777368411386882 1.1528e-09 deg/d
Q 2.653182354345046 7.3415e-09 au
  Orbit Determination Parameters
   # obs. used (total)      2163  
   data-arc span      25940 days (71.02 yr)  
   first obs. used      1950-03-17  
   last obs. used      2021-03-24  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .47507  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-May-03 23:21:50  

Additional Information
 Earth MOID = .994848 au 
 Jupiter MOID = 2.30491 au 
 T_jup = 3.537 
[ 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 14.05   n/a MPCxxxxx  
diameter diameter 8.828 km 0.032 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.062   0.001 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

7274 Washioyama           Discovered 1982 Mar. 21 by T. Seki at Geisei.
Named for a small mountain in the southern part of Kochi City.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 19980610/MPCPages.arcLast Updated: 2009-11-17

Alternate Designations
 1982 FC = 1989 CP1 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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