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11866 (1989 SL12)
Classification: Main-belt Asteroid          SPK-ID: 2011866
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2457000.5 (2014-Dec-09.0) TDB
Reference: JPL 6 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1606776558269784 5.3578e-08  
a 2.895668172633817 3.1045e-08 AU
q 2.430398998602225 1.6045e-07 AU
i .8328456943502233 6.8472e-06 deg
node 309.8787944930114 0.00051955 deg
peri 134.9115978352427 0.00052041 deg
M 336.8627027766325 2.9869e-05 deg
tp 2457116.172931137024
(2015-Apr-03.67293114)
0.00015014 JED
period 1799.789094089689
4.93
2.8944e-05
7.924e-08
d
yr
n .2000234367361157 3.2167e-09 deg/d
Q 3.360937346665409 3.6033e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      891  
   data-arc span      12265 days (33.58 yr)  
   first obs. used      1981-02-06  
   last obs. used      2014-09-06  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .47982  
   data source      ORB  
   producer      Otto Matic  
   solution date      2014-Sep-12 13:59:08  

Additional Information
 Earth MOID = 1.44633 AU 
 T_jup = 3.269 
[ 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 13.8 mag n/a MPO266021  

11866 (1989 SL12)          Discovered 1989-Sep-30 by Debehogne, H. at La Silla (809)
Reference: 19991026/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1989 SL12 = 1981 CC = 1991 BD3 
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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