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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 ]

[ show orbit diagram ]
Orbital Elements at Epoch 2457600.5 (2016-Jul-31.0) TDB
Reference: JPL 19 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1891968574354211 4.6206e-08  
a 2.450947967192776 1.3668e-08 au
q 1.98723631406217 1.1669e-07 au
i 2.448324437825642 6.067e-06 deg
node 205.139038729528 0.00010943 deg
peri 94.95314791157993 0.00011088 deg
M 304.4267453525286 1.6435e-05 deg
tp 2457816.852986858006
(2017-Mar-04.35298686)
6.3898e-05 JED
period 1401.520853204626
3.84
1.1724e-05
3.21e-08
d
yr
n .2568638198831274 2.1487e-09 deg/d
Q 2.914659620323383 1.6254e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1129  
   data-arc span      10844 days (29.69 yr)  
   first obs. used      1986-08-09  
   last obs. used      2016-04-17  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .49139  
   data source      ORB  
   producer      Otto Matic  
   solution date      2016-Apr-25 13:05:49  

Additional Information
 Earth MOID = .973135 au 
 Jupiter MOID = 2.30084 au 
 T_jup = 3.470 
[ 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. 2016-February); 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. (2016) 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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