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79854 (1998 XJ31)
Classification: Main-belt Asteroid          SPK-ID: 2079854
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 27 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2237443994435344 2.8371e-08  
a 2.648990508923239 1.0088e-08 au
q 2.056293718372586 7.6747e-08 au
i 3.963893251551181 3.5015e-06 deg
node 284.7484855233996 5.3457e-05 deg
peri 114.3672540191399 5.4373e-05 deg
M 103.8676296782469 9.6623e-06 deg
tp 2458942.143494825633
(2020-Apr-02.64349483)
4.1147e-05 TDB
period 1574.776880626441
4.31
8.9956e-06
2.463e-08
d
yr
n .2286038132949941 1.3059e-09 deg/d
Q 3.241687299473891 1.2345e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1289  
   data-arc span      8285 days (22.68 yr)  
   first obs. used      1998-08-31  
   last obs. used      2021-05-07  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .48068  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Jul-08 23:09:42  

Additional Information
 Earth MOID = 1.06745 au 
 Jupiter MOID = 2.20269 au 
 T_jup = 3.352 
[ show covariance matrix ]

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

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 14.91   n/a MPCxxxxx  

79854 (1998 XJ31)          Discovered 1998-Dec-14 by LINEAR at Socorro
Reference: 20040504/Numbers.arcLast Updated: 2004-07-16
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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