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79846 (1998 XS2)
Classification: Main-belt Asteroid          SPK-ID: 2079846
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 21 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1210271484252124 1.75e-07  
a 2.537455350524625 1.2696e-08 au
q 2.230354365194332 4.4509e-07 au
i 15.71317363981089 5.8862e-06 deg
node 38.26238782616252 1.2843e-05 deg
peri 350.703591191635 2.0531e-05 deg
M 157.2140650624516 1.4977e-05 deg
tp 2458355.759521745817
(2018-Aug-25.25952175)
6.1264e-05 TDB
period 1476.37281740221
4.04
1.1081e-05
3.034e-08
d
yr
n .2438408481628965 1.8301e-09 deg/d
Q 2.844556335854918 1.4233e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1233  
   data-arc span      13180 days (36.08 yr)  
   first obs. used      1984-03-29  
   last obs. used      2020-04-29  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .49735  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-20 14:44:00  

Additional Information
 Earth MOID = 1.23753 au 
 Jupiter MOID = 2.59586 au 
 T_jup = 3.385 
[ 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 14.3   n/a MPO385317  

79846 (1998 XS2)          Discovered 1998-Dec-07 by BAO Schmidt CCD Asteroid Program at Xinglong
Reference: 20040504/Numbers.arcLast Updated: 2004-07-16

Alternate Designations
 1998 XS2 = 2000 FK40 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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