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120834 (1998 HG146)
Classification: Main-belt Asteroid          SPK-ID: 2120834
[ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 17 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2012037769816301 6.0551e-08  
a 2.572111724458018 1.4201e-08 au
q 2.054593130678331 1.5187e-07 au
i 4.521325307753171 4.7438e-06 deg
node 82.70689333444879 6.419e-05 deg
peri 173.2188778703288 6.5427e-05 deg
M 150.1655859900914 1.615e-05 deg
tp 2458572.006074002672
(2019-Mar-29.50607400)		 6.5036e-05 TDB
period 1506.722141875886
4.13		 1.2479e-05
3.417e-08		 d
yr
n .2389292557629742 1.9788e-09 deg/d
Q 3.089630318237705 1.7059e-08 au
   Orbit Determination Parameters
   # obs. used (total)      366  
   data-arc span      9174 days (25.12 yr)  
   first obs. used      1995-10-21  
   last obs. used      2020-12-02  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .64065  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Feb-24 09:26:00  

Additional Information
 Earth MOID = 1.03812 au 
 Jupiter MOID = 1.96669 au 
 T_jup = 3.396 
[ show covariance matrix ]

[ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 16.4   n/a MPO436583  

120834 (1998 HG146)          Discovered 1998-Apr-21 by LINEAR at Socorro
Reference: 20060314/Numbers.arcLast Updated: 2006-03-23

[ show close-approach data ]
Alternate Designations
 1998 HG146 = 1995 UO64 
[ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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