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9586 (1990 SG11)
Classification: Main-belt Asteroid          SPK-ID: 2009586
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2457400.5 (2016-Jan-13.0) TDB
Reference: JPL 16 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1892841903799682 6.1013e-08  
a 2.452095993423847 1.5922e-08 au
q 1.98795298857465 1.4826e-07 au
i 2.446821671739122 6.2133e-06 deg
node 205.1483703984986 0.00013172 deg
peri 94.80429269089443 0.00013307 deg
M 253.2272075735258 1.6943e-05 deg
tp 2457816.470688153134
(2017-Mar-03.97068815)
6.6084e-05 JED
period 1402.50567894671
3.84
1.366e-05
3.74e-08
d
yr
n .2566834526262753 2.5e-09 deg/d
Q 2.916238998273043 1.8936e-08 au
  Orbit Determination Parameters
   # obs. used (total)      941  
   data-arc span      10447 days (28.60 yr)  
   first obs. used      1986-08-09  
   last obs. used      2015-03-17  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .48139  
   data source      ORB  
   producer      Otto Matic  
   solution date      2015-Apr-07 16:35:31  

Additional Information
 Earth MOID = .972364 au 
 Jupiter MOID = 2.29745 au 
 T_jup = 3.469 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 14.6 mag n/a MPO270236  
rotation period rot_per 5.2059 h n/a LCDB (Rev. 2015-December); 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:
[Waszczak, A.; Chang, C.-K.; Ofeck, E.O.; Laher, F.; et al. (2015) Astron. J. 150, A75.]

9586 (1990 SG11)          Discovered 1990-Sep-16 by Holt, H. E. at Palomar
Reference: 19981110/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1990 SG11 = 1986 PQ5 = 1990 SQ29 = 1993 FS25 
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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