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471165 (2010 HE79)
Classification: TransNeptunian Object          SPK-ID: 2471165
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 8 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1790656288393782 1.4733e-05  
a 39.15720925823119 0.0013452 au
q 32.1454989588109 0.00061404 au
i 15.68712873371268 9.7094e-05 deg
node 238.688106765374 2.7275e-05 deg
peri 283.8806583585301 0.0065773 deg
M 65.75643649280828 0.0075179 deg
tp 2442652.983147920675
(1975-Aug-28.48314792)
1.0313 TDB
period 89498.55528427557
245.03
4.6119
0.01263
d
yr
n .004022411298780486 2.0728e-07 deg/d
Q 46.16891955765148 0.0015861 au
  Orbit Determination Parameters
   # obs. used (total)      181  
   data-arc span      9838 days (26.93 yr)  
   first obs. used      1992-05-24  
   last obs. used      2019-05-01  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      2  
   norm. resid. RMS      .29203  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-14 13:28:06  

Additional Information
 Earth MOID = 31.1895 au 
 Jupiter MOID = 26.9757 au 
 T_jup = 5.330 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456628.5 (2013-Dec-02.0) TDB
Reference: JPL 8 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .181549470777799 1.4013e-05  
q 31.8479659449027 0.00063321 au
tp 2442324.677846818999
(1974-Oct-04.17784682)
1.0123 TDB
node 238.6909662167036 2.7198e-05 deg
peri 281.4614006867101 0.0066114 deg
i 15.74396040028021 9.7358e-05 deg
  Orbit Determination Parameters
   # obs. used (total)      181  
   data-arc span      9838 days (26.93 yr)  
   first obs. used      1992-05-24  
   last obs. used      2019-05-01  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      2  
   norm. resid. RMS      .29203  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-14 13:28:06  

Additional Information
 Jupiter MOID = 26.9757 au 
 T_jup = 5.330 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.96350573462097E-10 6.239187261766877E-9 1.217476065747076E-5 -2.240651716299204E-11 7.598553164674099E-8 7.585726429378204E-11
q 6.239187261766877E-9 4.009505977545766E-7 .0006190630009785268 -9.769466737659191E-10 4.112247950325289E-6 3.590346269024605E-9
tp 1.217476065747076E-5 .0006190630009785268 1.024850419037873 -1.680709325023703E-6 .006674594146423756 6.010957834971717E-6
node -2.240651716299204E-11 -9.769466737659191E-10 -1.680709325023703E-6 7.397481056044359E-10 -1.154353996924853E-8 -5.910558006789986E-10
peri 7.598553164674099E-8 4.112247950325289E-6 .006674594146423756 -1.154353996924853E-8 4.371038581369348E-5 3.959367911346547E-8
i 7.585726429378204E-11 3.590346269024605E-9 6.010957834971717E-6 -5.910558006789986E-10 3.959367911346547E-8 9.478554527676198E-9

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 MPO369102  
rotation period rot_per 19.49 h n/a LCDB (Rev. 2019-August); 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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