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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 ]

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Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 29 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1094196005903081 3.9478e-08  
a 2.816477587606024 1.534e-08 au
q 2.508299734898618 1.1229e-07 au
i 3.662060343524533 4.1568e-06 deg
node 296.5433642916622 6.552e-05 deg
peri 15.63519334189062 6.8226e-05 deg
M 201.6368840517107 2.0317e-05 deg
tp 2459959.967884947498
(2023-Jan-15.46788495)		 9.8224e-05 TDB
period 1726.465389013791
4.73		 1.4105e-05
3.862e-08		 d
yr
n .2085185155119982 1.7035e-09 deg/d
Q 3.12465544031343 1.7018e-08 au
   Orbit Determination Parameters
   # obs. used (total)      1061  
   data-arc span      10221 days (27.98 yr)  
   first obs. used      1993-03-21  
   last obs. used      2021-03-15  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .55643  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 03:17:48  

Additional Information
 Earth MOID = 1.49227 au 
 Jupiter MOID = 2.11166 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 14.69   n/a E2021B10  
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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