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46790 (1998 HG149)
Classification: Main-belt Asteroid          SPK-ID: 2046790
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 22 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2088001250590227 5.0831e-08  
a 2.245297839688744 7.6975e-09 au
q 1.776479369966981 1.1132e-07 au
i 4.687599068598303 4.4351e-06 deg
node 265.3387813452816 5.2551e-05 deg
peri 70.41373453344075 5.3827e-05 deg
M 123.1748797569934 1.4446e-05 deg
tp 2458580.035812871289
(2019-Apr-06.53581287)
4.7963e-05 TDB
period 1228.879684436971
3.36
6.3194e-06
1.73e-08
d
yr
n .2929497529816673 1.5065e-09 deg/d
Q 2.714116309410508 9.3047e-09 au
  Orbit Determination Parameters
   # obs. used (total)      1153  
   data-arc span      8948 days (24.50 yr)  
   first obs. used      1995-07-30  
   last obs. used      2020-01-28  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .51546  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-23 08:34:49  

Additional Information
 Earth MOID = .77343 au 
 Jupiter MOID = 2.67589 au 
 T_jup = 3.598 
[ 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 15.1   n/a MPO395444  

46790 (1998 HG149)          Discovered 1998-Apr-25 by Elst, E. W. at La Silla
Reference: 20020921/Numbers.arcLast Updated: 2004-04-19

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