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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 15 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .09229578558885203 4.7656e-08  
a 2.306345261777978 1.1113e-08 AU
q 2.093479314003053 1.1362e-07 AU
i 4.154621197263562 5.0057e-06 deg
node 155.0526320062232 6.0339e-05 deg
peri 42.51557855610467 6.6029e-05 deg
M 302.7463820706464 2.5232e-05 deg
tp 2457203.962953598471
(2015-Jun-30.46295360)
8.9601e-05 JED
period 1279.336851442826
3.50
9.2469e-06
2.532e-08
d
yr
n .2813957868828643 2.0339e-09 deg/d
Q 2.519211209552903 1.2139e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      1136  
   data-arc span      10316 days (28.24 yr)  
   first obs. used      1987-02-22  
   last obs. used      2015-05-22  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .49877  
   data source      ORB  
   producer      Otto Matic  
   solution date      2015-Jun-04 16:14:11  

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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