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385682 (2005 SN239)
Classification: Main-belt Asteroid          SPK-ID: 2385682
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 15 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1392830286283975 1.0155e-07  
a 2.346986167442362 2.2974e-08 au
q 2.020090825892035 2.5368e-07 au
i 2.157336301903757 6.1346e-06 deg
node 44.4763154516817 0.00012911 deg
peri 73.29128772401987 0.00015239 deg
M 346.9795375304489 6.0963e-05 deg
tp 2459247.999400807126
(2021-Feb-02.49940081)
0.00022188 TDB
period 1313.300839394436
3.60
1.9283e-05
5.279e-08
d
yr
n .2741184572500512 4.0249e-09 deg/d
Q 2.67388150899269 2.6174e-08 au
  Orbit Determination Parameters
   # obs. used (total)      266  
   data-arc span      5596 days (15.32 yr)  
   first obs. used      2005-09-22  
   last obs. used      2021-01-17  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .52722  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-14 11:06:15  

Additional Information
 Earth MOID = 1.03744 au 
 Jupiter MOID = 2.40235 au 
 T_jup = 3.546 
[ 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 17.86   n/a MPCxxxxx  
rotation period rot_per 10.76 h n/a LCDB (Rev. 2020-October); Warner et al., 2009 Result based on less than full coverage, so that the period may be wrong by 30 percent or so.
Published Reference List:
[Chang, C.-H.; Lin, H.-W.; Ip, W.-H.; Chen, W.-P.; et al. (2019) Ap. J. Supp. Ser. 241, A6.]

385682 (2005 SN239)          Discovered 2005-Sep-30 by Spacewatch at Kitt Peak
Reference: Last Updated: 2014-02-19

[ show close-approach data ]
Alternate Designations
 2005 SN239 = 2007 EX76 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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