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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 2456800.5 (2014-May-23.0) TDB
Reference: JPL 9 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .09252378922458243 5.7521e-08  
a 2.305585326582341 1.3647e-08 AU
q 2.092263835786347 1.3191e-07 AU
i 4.153774718767602 5.1112e-06 deg
node 155.0671091721274 8.1622e-05 deg
peri 42.72628112709093 8.6675e-05 deg
M 246.2528706454775 3.0458e-05 deg
tp 2457204.524936330539
(2015-Jul-01.02493633)
0.00010925 JED
period 1278.704595925798
3.50
1.1353e-05
3.108e-08
d
yr
n .2815349230361963 2.4996e-09 deg/d
Q 2.518906817378336 1.4909e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      940  
   data-arc span      9813 days (26.87 yr)  
   first obs. used      1987-02-22  
   last obs. used      2014-01-04  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .50802  
   data source      ORB  
   producer      Otto Matic  
   solution date      2014-Jun-16 13:49:17  

Additional Information
 Earth MOID = 1.0932 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 14.6 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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