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392756 (2012 TX21)
Classification: Main-belt Asteroid          SPK-ID: 2392756
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 16 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1460320498387478 9.7769e-08  
a 2.555254627294521 1.8675e-08 au
q 2.182105556210757 2.5867e-07 au
i 1.786298777288211 7.4954e-06 deg
node 15.56816138393902 0.00012486 deg
peri 358.9953699609757 0.00012626 deg
M 318.4589384279789 1.4656e-05 deg
tp 2459172.657041944584
(2020-Nov-19.15704194)
6.0715e-05 TDB
period 1491.934311611159
4.08
1.6355e-05
4.478e-08
d
yr
n .2412974868921885 2.6452e-09 deg/d
Q 2.928403698378285 2.1402e-08 au
  Orbit Determination Parameters
   # obs. used (total)      260  
   data-arc span      6785 days (18.58 yr)  
   first obs. used      2002-03-12  
   last obs. used      2020-10-08  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .53516  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-12 16:22:43  

Additional Information
 Earth MOID = 1.18293 au 
 Jupiter MOID = 2.53599 au 
 T_jup = 3.422 
[ 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 17.2   n/a MPO437608  

392756 (2012 TX21)          Discovered 2004-Oct-10 by Spacewatch at Kitt Peak
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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