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JPL Small-Body Database Browser
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266516 (2008 EU137)
Classification: Main-belt Asteroid          SPK-ID: 2266516
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 16 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1792447968351845 5.2595e-08  
a 2.406924371526445 1.9008e-08 au
q 1.975495701554533 1.2545e-07 au
i 3.013414238934451 4.8667e-06 deg
node 96.05941850760219 0.00011359 deg
peri 253.5304689682467 0.00011456 deg
M 197.7575130792867 1.7756e-05 deg
tp 2459215.187225280360
(2020-Dec-31.68722528)
7.092e-05 TDB
period 1363.930036458768
3.73
1.6157e-05
4.424e-08
d
yr
n .2639431571832556 3.1266e-09 deg/d
Q 2.838353041498356 2.2415e-08 au
  Orbit Determination Parameters
   # obs. used (total)      317  
   data-arc span      7500 days (20.53 yr)  
   first obs. used      1998-09-22  
   last obs. used      2019-04-05  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .58957  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-14 10:50:52  

Additional Information
 Earth MOID = .970884 au 
 Jupiter MOID = 2.5817 au 
 T_jup = 3.498 
[ 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 16.9   n/a MPO433730  
rotation period rot_per 51.415 h n/a LCDB (Rev. 2019-January); Warner et al., 2009 Result based on less than full coverage, so that the period may be wrong by 30 percent or so.
Published Reference List:
[Waszczak, A.; Chang, C.-K.; Ofeck, E.O.; Laher, F.; et al. (2015) Astron. J. 150, A75.]

266516 (2008 EU137)          Discovered 2008-Mar-11 by Spacewatch at Kitt Peak
Reference: 20110218/Numbers.arcLast Updated: 2011-02-22

Alternate Designations
 2008 EU137 = 1998 SW159 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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