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20359 (1998 JR)
Classification: Main-belt Asteroid          SPK-ID: 2020359
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 25 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1092225944545973 4.0449e-08  
a 2.816213747569086 1.725e-08 au
q 2.508619575520886 1.1392e-07 au
i 3.661782563170874 4.2942e-06 deg
node 296.5488481221389 6.9388e-05 deg
peri 15.42772833522724 7.2331e-05 deg
M 76.77436415653757 2.0933e-05 deg
tp 2458232.362061759220
(2018-Apr-23.86206176)
0.00010067 TDB
period 1726.222798751706
4.73
1.5861e-05
4.343e-08
d
yr
n .2085478191229597 1.9162e-09 deg/d
Q 3.123807919617286 1.9135e-08 au
  Orbit Determination Parameters
   # obs. used (total)      952  
   data-arc span      9694 days (26.54 yr)  
   first obs. used      1993-03-21  
   last obs. used      2019-10-05  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .56098  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Nov-07 04:23:00  

Additional Information
 Earth MOID = 1.49373 au 
 Jupiter MOID = 2.11055 au 
 T_jup = 3.307 
[ 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 14.7   n/a MPO452458  
diameter diameter 4.362 km 0.549 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.147   0.028 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

20359 (1998 JR)          Discovered 1998-May-01 by JPL/GEODSS NEAT at Haleakala
Reference: 20010109/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1998 JR = 1993 FH26 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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