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390213 (2012 XR23)
Classification: Main-belt Asteroid          SPK-ID: 2390213
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 13 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1336501521760252 7.0145e-08  
a 3.131397928182586 5.4961e-08 au
q 2.712886118557293 2.373e-07 au
i 5.887466551937057 7.4847e-06 deg
node 65.91926907250595 9.008e-05 deg
peri 349.8025641706318 0.00010254 deg
M 133.0319921267042 4.6181e-05 deg
tp 2458252.572657100566
(2018-May-14.07265710)
0.00025271 TDB
period 2023.978135931015
5.54
5.3286e-05
1.459e-07
d
yr
n .1778675340454716 4.6828e-09 deg/d
Q 3.549909737807878 6.2306e-08 au
  Orbit Determination Parameters
   # obs. used (total)      112  
   data-arc span      6680 days (18.29 yr)  
   first obs. used      2001-12-18  
   last obs. used      2020-04-02  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .63438  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-12 16:42:51  

Additional Information
 Earth MOID = 1.72498 au 
 Jupiter MOID = 1.79739 au 
 T_jup = 3.191 
[ 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 16.4   n/a MPO427945  

390213 (2012 XR23)          Discovered 2007-Nov-18 by Mt. Lemmon Survey at Mount Lemmon
Reference: Last Updated: 2014-03-21

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