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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 ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459396.5 (2021-Jul-01.0) TDB
Reference: JPL 43 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1402533754598217 2.3412e-08  
a 2.326185452313932 5.951e-09 au
q 1.999930090681371 5.5792e-08 au
i 10.74051120195033 9.1559e-07 deg
node 25.11944475317322 3.8772e-06 deg
peri 181.3582443073626 6.0585e-06 deg
M 4.051510810229852 5.2501e-06 deg
tp 2459381.915906794435
(2021-Jun-16.41590679)
1.8867e-05 TDB
period 1295.88042582701
3.55
4.9728e-06
1.361e-08
d
yr
n .2778034090377233 1.066e-09 deg/d
Q 2.652440813946493 6.7857e-09 au
  Orbit Determination Parameters
   # obs. used (total)      2438  
   data-arc span      26069 days (71.37 yr)  
   first obs. used      1950-03-17  
   last obs. used      2021-07-31  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .46062  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Aug-25 12:06:00  

Additional Information
 Earth MOID = .996396 au 
 Jupiter MOID = 2.30463 au 
 T_jup = 3.538 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457233.5 (2015-Jul-30.0) TDB
Reference: JPL 43 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1404873975249962 2.3414e-08  
q 1.999721798620706 5.5816e-08 au
tp 2456790.416639392156
(2014-May-12.91663939)
1.5614e-05 TDB
node 25.14042741256771 3.8758e-06 deg
peri 181.4926923951403 6.0681e-06 deg
i 10.7427333694775 9.1569e-07 deg
  Orbit Determination Parameters
   # obs. used (total)      2438  
   data-arc span      26069 days (71.37 yr)  
   first obs. used      1950-03-17  
   last obs. used      2021-07-31  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .46062  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Aug-25 12:06:00  

Additional Information
 Jupiter MOID = 2.30463 au 
 T_jup = 3.538 
Orbit Covariance (6×6)
  e q tp node peri i
e 5.482107256076404E-16 -1.301674073883059E-15 -9.852854865894013E-14 -1.805950760544231E-15 -5.598719205612023E-14 4.851835916321607E-15
q -1.301674073883059E-15 3.115465825788601E-15 2.330054705352341E-13 3.878921659472787E-15 1.350109654195256E-13 -1.1318530500725E-14
tp -9.852854865894013E-14 2.330054705352341E-13 2.438122223311107E-10 1.13496663115451E-12 6.625134625329311E-11 -4.362536114160403E-12
node -1.805950760544231E-15 3.878921659472787E-15 1.13496663115451E-12 1.502197964686421E-11 -1.526507349369506E-11 -1.697824043628577E-13
peri -5.598719205612023E-14 1.350109654195256E-13 6.625134625329311E-11 -1.526507349369506E-11 3.682125510138007E-11 -1.08148559139978E-12
i 4.851835916321607E-15 -1.1318530500725E-14 -4.362536114160403E-12 -1.697824043628577E-13 -1.08148559139978E-12 8.384898889835886E-13

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

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 14.10   n/a MPO636175  
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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