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(2004 HD79)
Classification: TransNeptunian Object          SPK-ID: 3564147
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 4 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .03017769333878277 0.00037266  
a 46.16150502684033 0.014379 au
q 44.76845728408367 0.029912 au
i 1.304843011410524 0.00018777 deg
node 159.1349018683777 0.024647 deg
peri 222.3738606826271 0.57547 deg
M 228.201994783356 0.62197 deg
tp 2501140.140471540763
(2135-Oct-15.64047154)
202.5 TDB
period 114556.1387286308
313.64
53.525
0.1465
d
yr
n .003142564021407837 1.4683e-06 deg/d
Q 47.554552769597 0.014813 au
  Orbit Determination Parameters
   # obs. used (total)      24  
   data-arc span      3336 days (9.13 yr)  
   first obs. used      2004-04-22  
   last obs. used      2013-06-10  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      4  
   norm. resid. RMS      .2782  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-14 22:13:41  

Additional Information
 Earth MOID = 43.7704 au 
 Jupiter MOID = 39.8116 au 
 T_jup = 6.065 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 5.7   n/a MPO264936  
rotation period rot_per 7.0 h n/a LCDB (Rev. 2020-October); Warner et al., 2009 lower-limit; Incomplete or inconclusive result.
Published Reference List:
[Thirouin, A.; Sheppard, S.S. (2019) Astron. J. 157, A228.]
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters ]
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