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500856 (2013 HT156)
Classification: TransNeptunian Object          SPK-ID: 2500856
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 6 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .01640380536432124 0.00048498  
a 44.19934029581309 0.0081873 au
q 43.47430292036917 0.027537 au
i 3.676804745947918 0.0009204 deg
node 54.5060088858157 0.004123 deg
peri 293.1815468858055 0.95966 deg
M 239.7021834823559 1.0185 deg
tp 2494866.038152716872
(2118-Aug-11.53815272)
306.38 TDB
period 107330.2418010582
293.85
29.822
0.08165
d
yr
n .003354133876519884 9.3196e-07 deg/d
Q 44.92437767125701 0.0083216 au
  Orbit Determination Parameters
   # obs. used (total)      24  
   data-arc span      2241 days (6.14 yr)  
   first obs. used      2013-04-17  
   last obs. used      2019-06-06  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      4  
   norm. resid. RMS      .27375  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Sep-24 08:24:08  

Additional Information
 Earth MOID = 42.4696 au 
 Jupiter MOID = 38.4916 au 
 T_jup = 5.934 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456810.5 (2014-Jun-02.0) TDB
Reference: JPL 6 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .01456646827283299 0.00035706  
q 43.42357101403539 0.022775 au
tp 2501680.548799789947
(2137-Apr-08.04879979)
523.15 TDB
node 54.49145912730224 0.0041241 deg
peri 316.053297143197 1.681 deg
i 3.678264735088174 0.00092142 deg
  Orbit Determination Parameters
   # obs. used (total)      24  
   data-arc span      2241 days (6.14 yr)  
   first obs. used      2013-04-17  
   last obs. used      2019-06-06  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      4  
   norm. resid. RMS      .27375  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Sep-24 08:24:08  

Additional Information
 Jupiter MOID = 38.4916 au 
 T_jup = 5.934 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.274946593633448E-7 -7.936596477396512E-6 -.1713405544733194 -3.057857969923516E-8 -.0005441053833116429 5.939986232627417E-9
q -7.936596477396512E-6 .0005187221340397375 9.635176890005788 2.123760681933817E-6 .03035928471105792 -4.089540593257054E-7
tp -.1713405544733194 9.635176890005788 273688.4411602948 .0321700910495572 879.1016930672366 -.006396840570126027
node -3.057857969923516E-8 2.123760681933817E-6 .0321700910495572 1.700780878345849E-5 8.310078184556645E-5 -3.775428203006635E-6
peri -.0005441053833116429 .03035928471105792 879.1016930672366 8.310078184556645E-5 2.825673776145535 -1.617534855640532E-5
i 5.939986232627417E-9 -4.089540593257054E-7 -.006396840570126027 -3.775428203006635E-6 -1.617534855640532E-5 8.490181531461026E-7

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

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 7.6   n/a MPO347300  

500856 (2013 HT156)          Discovered 2013-Apr-19 by Outer Solar System Origins Survey at Mauna Kea
Reference: Last Updated: 2017-10-09
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ]
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