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471137 (2010 ET65)
Classification: TransNeptunian Object          SPK-ID: 2471137
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 7 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .3627778531283488 2.3586e-05  
a 62.20228242882079 0.002643 au
q 39.63667194960997 0.00021955 au
i 30.62246561140862 7.7185e-05 deg
node 189.5860260144616 1.6815e-05 deg
peri 354.6244711071515 0.0015208 deg
M 4.692241706944474 0.00071957 deg
tp 2456664.968211502751
(2014-Jan-07.46821150)
0.33031 TDB
period 179187.5816232241
490.59
11.421
0.03127
d
yr
n .002009067797772773 1.2805e-07 deg/d
Q 84.7678929080316 0.0036019 au
  Orbit Determination Parameters
   # obs. used (total)      248  
   data-arc span      6653 days (18.21 yr)  
   first obs. used      2002-02-07  
   last obs. used      2020-04-26  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      2  
   norm. resid. RMS      .40598  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-22 04:54:17  

Additional Information
 Earth MOID = 38.64 au 
 Jupiter MOID = 34.1892 au 
 T_jup = 5.629 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 5.1   n/a MPO383320  
rotation period rot_per 7.88 h n/a LCDB (Rev. 2019-August); Warner et al., 2009 Result based on fragmentary lightcurve(s), may be completely wrong.
Published Reference List:
[Benecchi, S.D.; Sheppard, S.S. (2013) Astron. J. 145, A124.]

471137 (2010 ET65)          Discovered 2010-Mar-13 by Rabinowitz, D. L., Tourtellotte, S. at La Silla
Reference: Last Updated: 2016-08-22
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ]
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