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471165 (2010 HE79)
Classification: TransNeptunian Object          SPK-ID: 2471165
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ]

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For accurate long-term ephemerides, please instead use our Horizons system.This orbit viewer was implemented using two-body methods, and hence should not be used for determining accurate long-term trajectories (over several years or decades) or planetary encounter circumstances.


Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 10 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1783085632401968 6.1037e-06  
a 39.09662714723437 0.0005849 au
q 32.12536373307334 0.00031342 au
i 15.69865828050665 3.6509e-05 deg
node 238.6957350660953 1.4721e-05 deg
peri 283.4801172685246 0.0030815 deg
M 67.01237385852681 0.0034 deg
tp 2442579.395970646252
(1975-Jun-15.89597065)
0.47121 TDB
period 89290.93398779786
244.47
2.0037
0.005486
d
yr
n .004031764300384585 9.0475e-08 deg/d
Q 46.06789056139541 0.00068919 au
  Orbit Determination Parameters
   # obs. used (total)      368  
   data-arc span      10495 days (28.73 yr)  
   first obs. used      1992-05-24  
   last obs. used      2021-02-16  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      2  
   norm. resid. RMS      .45319  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-14 16:25:00  

Additional Information
 Earth MOID = 31.1694 au 
 Jupiter MOID = 26.9569 au 
 T_jup = 5.326 
[ 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 5.32   n/a E2020R02  
rotation period rot_per 19.49 h n/a LCDB (Rev. 2020-October); 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:
[Benecchi, S.D.; Sheppard, S.S. (2013) Astron. J. 145, A124.]

471165 (2010 HE79)          Discovered 2010-Apr-21 by Sheppard, S. S., Poleski, R., Udalski, A., Trujillo, C. A. at Las Campanas
Reference: Last Updated: 2016-08-22

Alternate Designations
 2010 HE79 = 2002 JR146 
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ]
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