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120157 (2003 HC10)
Classification: Main-belt Asteroid          SPK-ID: 2120157
[ 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 13 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .03247583422290751 5.7005e-08  
a 2.678778629367334 1.7289e-08 au
q 2.591783058680133 1.5568e-07 au
i 3.852183249818983 6.0701e-06 deg
node 44.94837448106428 8.3043e-05 deg
peri 189.483982524678 0.00012415 deg
M 304.6386637861546 9.1747e-05 deg
tp 2459246.767855340165
(2021-Feb-01.26785534)		 0.00040797 TDB
period 1601.414163487754
4.38		 1.5504e-05
4.245e-08		 d
yr
n .2248013088731202 2.1764e-09 deg/d
Q 2.765774200054535 1.7851e-08 au
   Orbit Determination Parameters
   # obs. used (total)      307  
   data-arc span      9435 days (25.83 yr)  
   first obs. used      1994-04-03  
   last obs. used      2020-02-01  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .56215  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-24 06:16:06  

Additional Information
 Earth MOID = 1.58021 au 
 Jupiter MOID = 2.20593 au 
 T_jup = 3.373 
[ 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 16.3   n/a MPO432703  

120157 (2003 HC10)          Discovered 2003-Apr-25 by Spacewatch at Kitt Peak
Reference: 20051116/Numbers.arcLast Updated: 2005-11-21

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