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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 2457600.5 (2016-Jul-31.0) TDB
Reference: JPL 17 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1619619018085952 4.5565e-08  
a 2.897447019674283 2.0187e-08 au
q 2.42817098997819 1.3421e-07 au
i .8302270587768068 5.2349e-06 deg
node 309.7417347731759 0.00044943 deg
peri 135.0306315590525 0.00045019 deg
M 96.73354491586586 2.3066e-05 deg
tp 2457116.443245366072
(2015-Apr-03.94324537)
0.00011539 JED
period 1801.447799931008
4.93
1.8827e-05
5.155e-08
d
yr
n .1998392626274196 2.0885e-09 deg/d
Q 3.366723049370376 2.3457e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1289  
   data-arc span      12843 days (35.16 yr)  
   first obs. used      1981-02-06  
   last obs. used      2016-04-06  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .45452  
   data source      ORB  
   producer      Otto Matic  
   solution date      2016-Apr-25 13:12:53  

Additional Information
 Earth MOID = 1.44277 au 
 Jupiter MOID = 1.86163 au 
 T_jup = 3.268 
[ 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 13.9 mag n/a MPO319233  

11866 (1989 SL12)          Discovered 1989-Sep-30 by Debehogne, H. at La Silla
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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