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JPL Small-Body Database Browser
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392969 (2012 XT21)
Classification: Main-belt Asteroid          SPK-ID: 2392969
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 10 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .09036016221550644 7.4945e-08  
a 2.767132448809658 3.5479e-08 au
q 2.517093911863425 2.1152e-07 au
i 1.826832208044351 6.8288e-06 deg
node 98.06363769945702 0.00025762 deg
peri 271.1962729855337 0.00026066 deg
M 187.6457061713716 4.1873e-05 deg
tp 2459405.438970982603
(2021-Jul-09.93897098)
0.00020308 TDB
period 1681.292778477936
4.60
3.2335e-05
8.853e-08
d
yr
n .2141209458628056 4.1181e-09 deg/d
Q 3.017170985755889 3.8685e-08 au
  Orbit Determination Parameters
   # obs. used (total)      121  
   data-arc span      7016 days (19.21 yr)  
   first obs. used      2000-02-07  
   last obs. used      2019-04-24  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .52369  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-14 14:55:48  

Additional Information
 Earth MOID = 1.51619 au 
 Jupiter MOID = 2.42913 au 
 T_jup = 3.332 
[ 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 16.9   n/a MPO434458  

392969 (2012 XT21)          Discovered 2005-Mar-10 by Mt. Lemmon Survey at Mount Lemmon
Reference: Last Updated: 2014-04-17

Alternate Designations
 2012 XT21 = 2005 EU143 = 2008 YF107 = 2011 OG50 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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