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12236 (1987 DD6)
Classification: Main-belt Asteroid          SPK-ID: 2012236
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 11 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .0922957922253461 5.288e-08  
a 2.306345263831846 1.279e-08 AU
q 2.09347930056131 1.23e-07 AU
i 4.154621203068307 5.0305e-06 deg
node 155.052684055787 7.6967e-05 deg
peri 42.5155302448206 8.204e-05 deg
M 302.7463771332965 2.8858e-05 deg
tp 2457203.962971416183
(2015-Jun-30.46297142)
0.00010291 JED
period 1279.336853151756
3.50
1.0642e-05
2.914e-08
d
yr
n .2813957865069775 2.3408e-09 deg/d
Q 2.51921122710238 1.3971e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      972  
   data-arc span      10176 days (27.86 yr)  
   first obs. used      1987-02-22  
   last obs. used      2015-01-02  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .51339  
   data source      ORB  
   producer      Otto Matic  
   solution date      2015-Jan-08 02:15:15  

Additional Information
 Earth MOID = 1.0954 AU 
 T_jup = 3.578 
[ 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 14.6 mag n/a PDS3 (MPC 36669)  

12236 (1987 DD6)          Discovered 1987-Feb-22 by Debehogne, H. at La Silla (809)
Reference: 19991123/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1987 DD6 = 1991 LM4 
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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