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120993 (1998 XC25)
Classification: Main-belt Asteroid          SPK-ID: 2120993
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 22 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .08716159149722651 3.2874e-08  
a 2.233449187920567 7.7043e-09 au
q 2.038778202173223 7.1298e-08 au
i 1.887470244827329 3.6185e-06 deg
node 114.7371497060787 0.00011558 deg
peri 47.34885333119232 0.00011783 deg
M 68.26519669402974 2.277e-05 deg
tp 2458769.315141344085
(2019-Oct-12.81514134)
7.6964e-05 TDB
period 1219.165155110557
3.34
6.3083e-06
1.727e-08
d
yr
n .2952840298059159 1.5279e-09 deg/d
Q 2.428120173667912 8.3758e-09 au
  Orbit Determination Parameters
   # obs. used (total)      609  
   data-arc span      7855 days (21.51 yr)  
   first obs. used      1998-11-27  
   last obs. used      2020-05-30  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .55215  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Jun-24 01:58:06  

Additional Information
 Earth MOID = 1.04732 au 
 Jupiter MOID = 2.54283 au 
 T_jup = 3.634 
[ 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 16.6   n/a MPO412814  

120993 (1998 XC25)          Discovered 1998-Dec-13 by Spacewatch at Kitt Peak
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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