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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 2457400.5 (2016-Jan-13.0) TDB
Reference: JPL 14 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1614046378401731 5.2239e-08  
a 2.898078532677467 2.2916e-08 au
q 2.43031521667828 1.5805e-07 au
i .8317668488843185 5.352e-06 deg
node 309.8702949359015 0.00048607 deg
peri 135.0261525526582 0.00048682 deg
M 56.71301976192928 2.3225e-05 deg
tp 2457116.614034080130
(2015-Apr-04.11403408)
0.00011615 JED
period 1802.036783796125
4.93
2.1374e-05
5.852e-08
d
yr
n .1997739464794016 2.3695e-09 deg/d
Q 3.365841848676653 2.6615e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1174  
   data-arc span      12733 days (34.86 yr)  
   first obs. used      1981-02-06  
   last obs. used      2015-12-18  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .46093  
   data source      ORB  
   producer      Otto Matic  
   solution date      2016-Jan-04 13:18:58  

Additional Information
 Earth MOID = 1.44605 au 
 Jupiter MOID = 1.86317 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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