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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 2457400.5 (2016-Jan-13.0) TDB
Reference: JPL 17 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .09188426109066017 4.7708e-08  
a 2.305525531101384 1.1003e-08 au
q 2.093684021250481 1.1358e-07 au
i 4.155466270653825 4.979e-06 deg
node 155.0518846682485 5.9939e-05 deg
peri 42.54948052769461 6.5672e-05 deg
M 55.30055972409454 2.5127e-05 deg
tp 2457204.082419519608
(2015-Jun-30.58241952)
8.9315e-05 JED
period 1278.654851338375
3.50
9.1531e-06
2.506e-08
d
yr
n .281545875826605 2.0154e-09 deg/d
Q 2.517367040952286 1.2014e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1148  
   data-arc span      10364 days (28.38 yr)  
   first obs. used      1987-02-22  
   last obs. used      2015-07-09  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .50406  
   data source      ORB  
   producer      Otto Matic  
   solution date      2015-Sep-02 14:35:15  

Additional Information
 Earth MOID = 1.09402 au 
 Jupiter MOID = 2.44061 au 
 T_jup = 3.579 
[ 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 14.7 mag n/a MPO324422  

12236 (1987 DD6)          Discovered 1987-Feb-22 by Debehogne, H. at La Silla
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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