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312121 (2007 TK220)
Classification: Main-belt Asteroid          SPK-ID: 2312121
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 8 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1958317446584018 5.5797e-08  
a 2.399688489948699 2.4324e-08 au
q 1.92975330632536 1.3405e-07 au
i 1.333518172843859 6.0905e-06 deg
node 63.5072769233805 0.00031447 deg
peri 350.666095464832 0.00031737 deg
M 110.632243278591 4.2201e-05 deg
tp 2458583.236931604504
(2019-Apr-09.73693160)
0.00015394 TDB
period 1357.78413390852
3.72
2.0644e-05
5.652e-08
d
yr
n .265137875019723 4.0312e-09 deg/d
Q 2.869623673572038 2.9087e-08 au
  Orbit Determination Parameters
   # obs. used (total)      131  
   data-arc span      8591 days (23.52 yr)  
   first obs. used      1996-09-13  
   last obs. used      2020-03-22  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .62916  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-11 18:48:33  

Additional Information
 Earth MOID = .941176 au 
 Jupiter MOID = 2.48875 au 
 T_jup = 3.500 
[ 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 17.9   n/a MPO372912  

312121 (2007 TK220)          Discovered 2007-Oct-08 by Mt. Lemmon Survey at Mount Lemmon
Reference: 20120109/Numbers.arcLast Updated: 2012-01-11

Alternate Designations
 2007 TK220 = 2000 YC32 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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