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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 16 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .09229578554395441 4.7654e-08  
a 2.306345261731286 1.1083e-08 AU
q 2.09347931406422 1.1362e-07 AU
i 4.154621016890415 4.9911e-06 deg
node 155.0526344275052 6.0054e-05 deg
peri 42.5155760688036 6.5747e-05 deg
M 302.7463821564094 2.513e-05 deg
tp 2457203.962953287516
(2015-Jun-30.46295329)
8.9229e-05 JED
period 1279.336851403976
3.50
9.2218e-06
2.525e-08
d
yr
n .2813957868914095 2.0284e-09 deg/d
Q 2.519211209398352 1.2106e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      1144  
   data-arc span      10343 days (28.32 yr)  
   first obs. used      1987-02-22  
   last obs. used      2015-06-18  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .50357  
   data source      ORB  
   producer      Otto Matic  
   solution date      2015-Jul-06 12:09:02  

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 14.7 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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