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503858 (1998 HQ151)
Classification: TransNeptunian Object          SPK-ID: 2503858
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 .28786817470592 0.00029088  
a 39.77553764022124 0.020184 au
q 28.32542622178414 0.0029491 au
i 11.92881281041532 0.00014156 deg
node 228.814814793312 0.00044966 deg
peri 347.5080173813436 0.026256 deg
M 38.84897756301228 0.042731 deg
tp 2449112.701499931745
(1993-May-05.20149993)
3.4813 TDB
period 91626.79903868661
250.86
69.745
0.191
d
yr
n .003928981518256477 2.9907e-06 deg/d
Q 51.22564905865835 0.025995 au
  Orbit Determination Parameters
   # obs. used (total)      27  
   data-arc span      7059 days (19.33 yr)  
   first obs. used      1998-04-28  
   last obs. used      2017-08-25  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      4  
   norm. resid. RMS      .20262  
   source      ORB  
   producer      Otto Matic  
   solution date      2017-Nov-07 18:23:01  

Additional Information
 Earth MOID = 27.3197 au 
 Jupiter MOID = 22.8995 au 
 T_jup = 5.312 
[ 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 8.8   n/a MPO01427  

503858 (1998 HQ151)          Discovered 1998-Apr-28 by Trujillo, C. A., Tholen, D. C., Jewitt, D. J., Luu, J. X. at Mauna Kea
Reference: Last Updated: 2017-11-07
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ]
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