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392813 (2012 TF257)
Classification: Main-belt Asteroid          SPK-ID: 2392813
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 18 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .03676013803779213 1.0737e-07  
a 2.660933769871553 4.975e-08 au
q 2.563117477181652 3.1419e-07 au
i 8.488925683519994 6.3542e-06 deg
node 285.8533122901256 5.9343e-05 deg
peri 74.00759242997501 0.00010508 deg
M 301.6144465417949 8.8052e-05 deg
tp 2459257.629807846913
(2021-Feb-12.12980785)
0.00039018 TDB
period 1585.438954366544
4.34
4.4463e-05
1.217e-07
d
yr
n .227066453116031 6.3679e-09 deg/d
Q 2.758750062561454 5.1578e-08 au
  Orbit Determination Parameters
   # obs. used (total)      119  
   data-arc span      5703 days (15.61 yr)  
   first obs. used      2003-09-20  
   last obs. used      2019-05-02  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .4981  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-26 04:46:09  

Additional Information
 Earth MOID = 1.57199 au 
 Jupiter MOID = 2.45716 au 
 T_jup = 3.369 
[ 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 MPO434457  

392813 (2012 TF257)          Discovered 2008-Dec-01 by Mt. Lemmon Survey at Mount Lemmon
Reference: Last Updated: 2014-04-17
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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