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120996 (1998 XE79)
Classification: Main-belt Asteroid          SPK-ID: 2120996
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 18 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1283111863216908 3.1941e-08  
a 2.272546393576696 9.4033e-09 au
q 1.98095326984579 7.1331e-08 au
i 7.853057132417891 3.7804e-06 deg
node 113.4892231930019 2.9128e-05 deg
peri 345.3846585945795 3.4089e-05 deg
M 134.695914589013 1.7245e-05 deg
tp 2458732.312853364218
(2019-Sep-05.81285336)
5.9335e-05 TDB
period 1251.317631296813
3.43
7.7665e-06
2.126e-08
d
yr
n .2876967374198278 1.7856e-09 deg/d
Q 2.564139517307602 1.061e-08 au
  Orbit Determination Parameters
   # obs. used (total)      785  
   data-arc span      7827 days (21.43 yr)  
   first obs. used      1998-12-15  
   last obs. used      2020-05-20  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .51431  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-12 17:53:18  

Additional Information
 Earth MOID = .998661 au 
 Jupiter MOID = 2.56952 au 
 T_jup = 3.588 
[ 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 16.23   n/a E2021B55  

120996 (1998 XE79)          Discovered 1998-Dec-15 by LINEAR at Socorro
Reference: 20060314/Numbers.arcLast Updated: 2006-03-23

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