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4873 Fukaya (1990 EC)
Classification: Main-belt Asteroid          SPK-ID: 2004873
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 46 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .08892028529758608 3.086e-08  
a 3.026059236525864 1.4135e-08 au
q 2.756981185886588 9.09e-08 au
i 10.78762087551451 3.3363e-06 deg
node 145.8900913375584 1.7529e-05 deg
peri 155.3589217640119 2.5863e-05 deg
M 183.2431061146772 2.0216e-05 deg
tp 2460144.535715588553
(2023-Jul-19.03571559)
0.00011013 TDB
period 1922.71345202734
5.26
1.3472e-05
3.688e-08
d
yr
n .187235388414436 1.3119e-09 deg/d
Q 3.295137287165139 1.5392e-08 au
  Orbit Determination Parameters
   # obs. used (total)      2952  
   data-arc span      23930 days (65.52 yr)  
   first obs. used      1955-09-13  
   last obs. used      2021-03-20  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .412  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-May-03 21:54:48  

Additional Information
 Earth MOID = 1.74403 au 
 Jupiter MOID = 1.9865 au 
 T_jup = 3.212 
[ 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 12.18   n/a MPCxxxxx  
diameter diameter 12.437 km 0.244 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.218   0.040 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

4873 Fukaya (1990 EC)          Discovered 1990-Mar-04 by Sugie, A. at Dynic
Reference: DISCOVERY.DBLast Updated: 2003-08-29

[ show close-approach data ]
Alternate Designations
 1990 EC = 1955 RO = 1971 SF = 1982 UM1 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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