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444025 (2004 HJ79)
Classification: TransNeptunian Object          SPK-ID: 2444025
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 10 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .04873860211349982 6.5406e-05  
a 44.14813570307549 0.0046406 au
q 41.9964172829905 0.0059261 au
i 3.316427359664286 0.00022365 deg
node 45.30616057845906 0.00073438 deg
peri 277.3402000877325 0.094226 deg
M 268.1625307486138 0.094942 deg
tp 2486333.316566956884
(2095-Mar-31.81656696)
24.184 TDB
period 107143.7839512978
293.34
16.894
0.04625
d
yr
n .003359970935538715 5.2978e-07 deg/d
Q 46.29985412316049 0.0048668 au
  Orbit Determination Parameters
   # obs. used (total)      62  
   data-arc span      4391 days (12.02 yr)  
   first obs. used      2004-04-26  
   last obs. used      2016-05-04  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      3  
   norm. resid. RMS      .33044  
   source      ORB  
   producer      Otto Matic  
   solution date      2017-Apr-09 12:13:09  

Additional Information
 Earth MOID = 40.9858 au 
 Jupiter MOID = 36.9504 au 
 T_jup = 5.927 
[ 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 6.9   n/a MPO346447  

444025 (2004 HJ79)          Discovered 2004-Apr-26 by Gladman, B. at Mauna Kea
Reference: Last Updated: 2015-10-05
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ]
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