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213420 (2001 XJ39)
Classification: Main-belt Asteroid          SPK-ID: 2213420
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 17 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1418037438890919 7.2417e-08  
a 2.984121091671434 3.089e-08 au
q 2.560961548654021 2.1999e-07 au
i 12.42868026262743 7.7852e-06 deg
node 35.74603273365682 1.9385e-05 deg
peri 349.2358709640651 2.5512e-05 deg
M 296.8427518122904 1.9754e-05 deg
tp 2459530.826783619432
(2021-Nov-12.32678362)
0.00010671 TDB
period 1882.881941745789
5.16
2.9236e-05
8.004e-08
d
yr
n .1911962678160329 2.9688e-09 deg/d
Q 3.407280634688848 3.5271e-08 au
  Orbit Determination Parameters
   # obs. used (total)      469  
   data-arc span      6896 days (18.88 yr)  
   first obs. used      2000-07-10  
   last obs. used      2019-05-28  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .51997  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 23:42:37  

Additional Information
 Earth MOID = 1.56541 au 
 Jupiter MOID = 2.04512 au 
 T_jup = 3.208 
[ 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 15.24   n/a MPCxxxxx  

213420 (2001 XJ39)          Discovered 2001-Dec-09 by LINEAR at Socorro
Reference: 20090509/Numbers.arcLast Updated: 2009-05-11

[ show close-approach data ]
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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