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212755 (2007 TW12)
Classification: Main-belt Asteroid          SPK-ID: 2212755
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 15 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1974654070165243 5.5188e-08  
a 2.244935022138706 1.034e-08 au
q 1.801638014266436 1.2409e-07 au
i 4.066669031510259 6.3265e-06 deg
node 41.0207224943044 6.2737e-05 deg
peri 302.1168667186597 6.3947e-05 deg
M 304.3785574335386 1.2504e-05 deg
tp 2459190.320816527475
(2020-Dec-06.82081653)
4.3002e-05 TDB
period 1228.581834572838
3.36
8.4882e-06
2.324e-08
d
yr
n .2930207739276622 2.0245e-09 deg/d
Q 2.688232030010975 1.2382e-08 au
  Orbit Determination Parameters
   # obs. used (total)      459  
   data-arc span      6809 days (18.64 yr)  
   first obs. used      2000-07-06  
   last obs. used      2019-02-26  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .53983  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-25 02:50:16  

Additional Information
 Earth MOID = .798086 au 
 Jupiter MOID = 2.7205 au 
 T_jup = 3.602 
[ 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 16.7   n/a MPO433391  

212755 (2007 TW12)          Discovered 2007-Oct-06 by LINEAR at Socorro
Reference: 20090409/Numbers.arcLast Updated: 2009-04-10

[ show close-approach data ]
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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