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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 2456800.5 (2014-May-23.0) TDB
Reference: JPL 3 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1606983150616292 5.4305e-08  
a 2.896027682840261 3.0147e-08 AU
q 2.430640913835997 1.5987e-07 AU
i .83284673810539 7.1359e-06 deg
node 309.8829083353666 0.00053406 deg
peri 134.8582479775324 0.00053495 deg
M 296.9036441295128 3.1127e-05 deg
tp 2457116.003562026703
(2015-Apr-03.50356203)
0.00015774 JED
period 1800.124282339735
4.93
2.8109e-05
7.696e-08
d
yr
n .1999861918045377 3.1227e-09 deg/d
Q 3.361414451844525 3.4992e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      881  
   data-arc span      11952 days (32.72 yr)  
   first obs. used      1981-02-06  
   last obs. used      2013-10-28  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .52598  
   data source      ORB  
   producer      Otto Matic  
   solution date      2013-Nov-21 04:52:37  

Additional Information
 Earth MOID = 1.44617 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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