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266590 (2008 HE65)
Classification: Main-belt Asteroid          SPK-ID: 2266590
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 .09694678153126991 6.4706e-08  
a 2.99242139106342 3.6503e-08 au
q 2.702315768214496 1.9658e-07 au
i 3.41964372790994 7.3323e-06 deg
node 107.938247257434 9.2969e-05 deg
peri 230.3240583165591 9.897e-05 deg
M 33.71939045041922 3.0845e-05 deg
tp 2458823.403586033774
(2019-Dec-05.90358603)
0.00016236 TDB
period 1890.743224483432
5.18
3.4597e-05
9.472e-08
d
yr
n .1904013169733057 3.4839e-09 deg/d
Q 3.282527013912344 4.0042e-08 au
  Orbit Determination Parameters
   # obs. used (total)      204  
   data-arc span      7163 days (19.61 yr)  
   first obs. used      2000-12-21  
   last obs. used      2020-08-01  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .54968  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Aug-25 18:07:31  

Additional Information
 Earth MOID = 1.69464 au 
 Jupiter MOID = 2.05537 au 
 T_jup = 3.246 
[ 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 16.0   n/a MPO446349  

266590 (2008 HE65)          Discovered 2008-Apr-29 by Mt. Lemmon Survey at Mount Lemmon
Reference: 20110218/Numbers.arcLast Updated: 2011-02-22

[ show close-approach data ]
Alternate Designations
 2008 HE65 = 2005 YM225 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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