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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 2459396.5 (2021-Jul-01.0) TDB
Reference: JPL 24 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1211418054631615 1.6478e-07  
a 2.537541870195944 1.2576e-08 au
q 2.23013946660204 4.1995e-07 au
i 15.71321763494807 5.8415e-06 deg
node 38.2585705419287 1.2749e-05 deg
peri 350.5776618161309 2.0128e-05 deg
M 253.937772308277 1.4957e-05 deg
tp 2459831.487218697245
(2022-Sep-08.98721870)
6.1779e-05 TDB
period 1476.448327920881
4.04
1.0976e-05
3.005e-08
d
yr
n .2438283773242158 1.8126e-09 deg/d
Q 2.844944273789848 1.4099e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1274  
   data-arc span      13615 days (37.28 yr)  
   first obs. used      1984-03-29  
   last obs. used      2021-07-08  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .4969  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Aug-25 18:02:44  

Additional Information
 Earth MOID = 1.23665 au 
 Jupiter MOID = 2.59786 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 14.36   n/a E2021B10  

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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