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JPL Small-Body Database Browser
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390227 (2012 XM42)
Classification: Main-belt Asteroid          SPK-ID: 2390227
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 7 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .07404177071581597 1.0272e-07  
a 2.865104473335025 4.5567e-08 au
q 2.652967064843495 3.1476e-07 au
i .9455545706513535 7.3438e-06 deg
node 271.4970328562154 0.00078285 deg
peri 125.7380042173437 0.00078737 deg
M 146.7430365482748 8.6677e-05 deg
tp 2457878.455237865186
(2017-May-04.95523786)
0.00041696 TDB
period 1771.369330244305
4.85
4.2258e-05
1.157e-07
d
yr
n .2032326030790819 4.8484e-09 deg/d
Q 3.077241881826556 4.8941e-08 au
  Orbit Determination Parameters
   # obs. used (total)      110  
   data-arc span      9212 days (25.22 yr)  
   first obs. used      1994-01-13  
   last obs. used      2019-04-04  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .67625  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-14 14:55:51  

Additional Information
 Earth MOID = 1.65948 au 
 Jupiter MOID = 2.2431 au 
 T_jup = 3.296 
[ 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 16.9   n/a MPO434436  

390227 (2012 XM42)          Discovered 2007-Sep-15 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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