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392978 (2012 XR43)
Classification: Main-belt Asteroid          SPK-ID: 2392978
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 14 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .08466906016408424 7.2167e-08  
a 2.773242783398303 5.3732e-08 au
q 2.53843492332114 1.9917e-07 au
i 8.849111300633027 8.4642e-06 deg
node 71.76954872490288 4.0105e-05 deg
peri 138.1372833775346 6.3707e-05 deg
M 99.13058234618401 4.3834e-05 deg
tp 2458536.000318155793
(2019-Feb-21.50031816)
0.00021066 TDB
period 1686.864754611741
4.62
4.9025e-05
1.342e-07
d
yr
n .2134136711409682 6.2024e-09 deg/d
Q 3.008050643475466 5.8282e-08 au
  Orbit Determination Parameters
   # obs. used (total)      149  
   data-arc span      4310 days (11.80 yr)  
   first obs. used      2007-10-10  
   last obs. used      2019-07-29  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .59016  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Sep-24 07:09:24  

Additional Information
 Earth MOID = 1.53927 au 
 Jupiter MOID = 1.98206 au 
 T_jup = 3.314 
[ 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 MPO397431  

392978 (2012 XR43)          Discovered 2007-Oct-10 by Mt. Lemmon Survey at Mount Lemmon
Reference: Last Updated: 2014-04-17

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