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120274 (2004 HE6)
Classification: Main-belt Asteroid          SPK-ID: 2120274
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 12 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1354916635201192 5.2984e-08  
a 2.384363295958949 1.5807e-08 au
q 2.061301946553157 1.2837e-07 au
i 2.276818987733042 5.5149e-06 deg
node 120.8172213425428 0.00014702 deg
peri 97.69037477021949 0.00014837 deg
M 140.1730106467043 2.0141e-05 deg
tp 2458476.876693106150
(2018-Dec-24.37669311)
7.4261e-05 TDB
period 1344.798043589842
3.68
1.3373e-05
3.661e-08
d
yr
n .2676981883755614 2.662e-09 deg/d
Q 2.707424645364742 1.7949e-08 au
  Orbit Determination Parameters
   # obs. used (total)      428  
   data-arc span      6526 days (17.87 yr)  
   first obs. used      2000-03-12  
   last obs. used      2018-01-23  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .55259  
   source      ORB  
   producer      Otto Matic  
   solution date      2018-Feb-06 06:58:25  

Additional Information
 Earth MOID = 1.05513 au 
 Jupiter MOID = 2.26286 au 
 T_jup = 3.523 
[ 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 16.5   n/a MPO432704  

120274 (2004 HE6)          Discovered 2004-Apr-17 by LINEAR at Socorro
Reference: 20051116/Numbers.arcLast Updated: 2005-11-21

[ show close-approach data ]
Alternate Designations
 2004 HE6 = 2001 SM165 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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