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266388 (2007 ET131)
Classification: Main-belt Asteroid          SPK-ID: 2266388
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 14 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .05587655767885617 6.4233e-08  
a 2.747403156167735 3.3894e-08 au
q 2.593887725245057 1.6053e-07 au
i 5.273364264629376 6.068e-06 deg
node 4.60858526033905 6.2641e-05 deg
peri 295.0050544662014 0.00010463 deg
M 211.6099324271889 9.198e-05 deg
tp 2459686.121373731882
(2022-Apr-16.62137373)
0.00043353 TDB
period 1663.34377078417
4.55
3.078e-05
8.427e-08
d
yr
n .2164315076193065 4.0051e-09 deg/d
Q 2.900918587090413 3.5788e-08 au
  Orbit Determination Parameters
   # obs. used (total)      238  
   data-arc span      5618 days (15.38 yr)  
   first obs. used      2004-09-15  
   last obs. used      2020-02-02  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .54012  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-25 12:46:58  

Additional Information
 Earth MOID = 1.58407 au 
 Jupiter MOID = 2.22822 au 
 T_jup = 3.339 
[ 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 16.3   n/a MPO460146  

266388 (2007 ET131)          Discovered 2007-Mar-09 by Mt. Lemmon Survey at Mount Lemmon
Reference: 20110218/Numbers.arcLast Updated: 2011-02-22

[ show close-approach data ]
Alternate Designations
 2007 ET131 = 2004 RD312 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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