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120165 (2003 HE46)
Classification: Main-belt Asteroid          SPK-ID: 2120165
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 18 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1537023166014921 5.089e-08  
a 3.098075656289983 2.5097e-08 au
q 2.621894250911525 1.6241e-07 au
i 17.13415892148074 5.1609e-06 deg
node 215.4257188264018 1.6821e-05 deg
peri 27.96525914686923 2.2723e-05 deg
M 6.831587247499129 1.3494e-05 deg
tp 2458962.703152876381
(2020-Apr-23.20315288)
7.4757e-05 TDB
period 1991.757474733833
5.45
2.4202e-05
6.626e-08
d
yr
n .1807448971909134 2.1963e-09 deg/d
Q 3.574257061668441 2.8954e-08 au
  Orbit Determination Parameters
   # obs. used (total)      555  
   data-arc span      8117 days (22.22 yr)  
   first obs. used      1998-05-23  
   last obs. used      2020-08-12  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .54566  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-12 17:59:03  

Additional Information
 Earth MOID = 1.62229 au 
 Jupiter MOID = 1.45281 au 
 T_jup = 3.137 
[ 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 14.80   n/a E2021B55  
diameter diameter 3.451 km 0.661 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.235   0.061 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

120165 (2003 HE46)          Discovered 2003-Apr-28 by LINEAR at Socorro
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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