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JPL Small-Body Database Browser
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201481 (2003 HG1)
Classification: Main-belt Asteroid          SPK-ID: 2201481
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

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For accurate long-term ephemerides, please instead use our Horizons system.This orbit viewer was implemented using two-body methods, and hence should not be used for determining accurate long-term trajectories (over several years or decades) or planetary encounter circumstances.


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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 17 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1877454150270015 3.6374e-08  
a 2.419452812908041 1.3126e-08 au
q 1.965211640410375 8.6119e-08 au
i 3.533175222953884 4.5234e-06 deg
node 78.50406668054893 0.00011856 deg
peri 188.9594514375424 0.00012028 deg
M 160.6434313033881 2.1708e-05 deg
tp 2458387.112907799423
(2018-Sep-25.61290780)
8.1395e-05 TDB
period 1374.593105989952
3.76
1.1186e-05
3.063e-08
d
yr
n .261895682752414 2.1312e-09 deg/d
Q 2.873693985405708 1.559e-08 au
  Orbit Determination Parameters
   # obs. used (total)      388  
   data-arc span      6976 days (19.10 yr)  
   first obs. used      2000-09-26  
   last obs. used      2019-11-02  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .62374  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Dec-04 16:22:21  

Additional Information
 Earth MOID = .949333 au 
 Jupiter MOID = 2.21623 au 
 T_jup = 3.488 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 16.4   n/a MPO251531  

201481 (2003 HG1)          Discovered 2003-Apr-21 by CSS at Catalina
Reference: 20081212/Numbers.arcLast Updated: 2008-12-12
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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