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JPL Small-Body Database Browser
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266391 (2007 ET139)
Classification: Main-belt Asteroid          SPK-ID: 2266391
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 12 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1164333953417584 4.5268e-08  
a 2.994576863922269 3.9538e-08 au
q 2.645908112043925 1.2676e-07 au
i 2.33509597852502 5.5259e-06 deg
node 100.5335832178941 0.00016612 deg
peri 142.706266758611 0.00016928 deg
M 64.80173724331421 3.2793e-05 deg
tp 2458259.789300362660
(2018-May-21.28930036)
0.00017306 TDB
period 1892.786475907282
5.18
3.7487e-05
1.026e-07
d
yr
n .1901957799161888 3.7668e-09 deg/d
Q 3.343245615800614 4.4142e-08 au
  Orbit Determination Parameters
   # obs. used (total)      204  
   data-arc span      6385 days (17.48 yr)  
   first obs. used      2002-04-10  
   last obs. used      2019-10-03  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .59722  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Nov-08 04:04:00  

Additional Information
 Earth MOID = 1.63319 au 
 Jupiter MOID = 1.66959 au 
 T_jup = 3.243 
[ 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 16.1   n/a MPO450145  

266391 (2007 ET139)          Discovered 2007-Mar-12 by Spacewatch at Kitt Peak
Reference: 20110218/Numbers.arcLast Updated: 2011-02-22

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