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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 9 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1606776518426292 5.2871e-08  
a 2.895668163349353 2.4139e-08 AU
q 2.43039900234692 1.602e-07 AU
i .8328458133895082 5.7211e-06 deg
node 309.8787792599558 0.00050666 deg
peri 134.9116077227036 0.00050743 deg
M 336.8627111195304 2.4407e-05 deg
tp 2457116.172888871094
(2015-Apr-03.67288887)
0.00012219 JED
period 1799.789085433616
4.93
2.2505e-05
6.162e-08
d
yr
n .200023437698127 2.5012e-09 deg/d
Q 3.360937324351786 2.8018e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      985  
   data-arc span      12363 days (33.85 yr)  
   first obs. used      1981-02-06  
   last obs. used      2014-12-13  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .46597  
   data source      ORB  
   producer      Otto Matic  
   solution date      2015-Jan-08 02:13:51  

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 13.9 mag n/a MPO319233  

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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