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JPL Small-Body Database Browser
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390274 (2012 XE149)
Classification: Main-belt Asteroid          SPK-ID: 2390274
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 9 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .04384732786490382 9.0535e-08  
a 2.780212066588053 4.2268e-08 au
q 2.658307196570405 2.6611e-07 au
i 7.47197161397953 9.479e-06 deg
node 170.8807555417739 5.0304e-05 deg
peri 182.9943635241204 9.0712e-05 deg
M 213.3479344749568 7.6812e-05 deg
tp 2459290.264749875802
(2021-Mar-16.76474988)
0.00036648 TDB
period 1693.227497793986
4.64
3.8614e-05
1.057e-07
d
yr
n .21261171370594 4.8486e-09 deg/d
Q 2.902116936605701 4.4122e-08 au
  Orbit Determination Parameters
   # obs. used (total)      121  
   data-arc span      5165 days (14.14 yr)  
   first obs. used      2005-04-01  
   last obs. used      2019-05-23  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .60693  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Sep-24 07:06:50  

Additional Information
 Earth MOID = 1.65174 au 
 Jupiter MOID = 2.29245 au 
 T_jup = 3.320 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 16.6   n/a MPO434437  

390274 (2012 XE149)          Discovered 2007-Oct-15 by Mt. Lemmon Survey at Mount Lemmon
Reference: Last Updated: 2014-03-21
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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