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11843 (1987 DM6)
Classification: Main-belt Asteroid          SPK-ID: 2011843
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

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For accurate long-term ephemerides, please instead use our Horizons system.This orbit viewer was implemented using two-body methods, and hence should not be used for determining accurate long-term trajectories (over several years or decades) or planetary encounter circumstances.


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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 27 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1518117998425911 2.9991e-08  
a 2.275583999990097 7.1121e-09 au
q 1.930123497258597 6.7478e-08 au
i 3.85834355563555 3.5123e-06 deg
node 192.0362166092439 4.9891e-05 deg
peri 286.9313018634739 5.1513e-05 deg
M 275.6596532056477 1.408e-05 deg
tp 2459294.245089842917
(2021-Mar-20.74508984)
4.9844e-05 TDB
period 1253.827336058941
3.43
5.8781e-06
1.609e-08
d
yr
n .2871208735419346 1.3461e-09 deg/d
Q 2.621044502721597 8.1918e-09 au
  Orbit Determination Parameters
   # obs. used (total)      1436  
   data-arc span      11939 days (32.69 yr)  
   first obs. used      1987-02-23  
   last obs. used      2019-11-01  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .50657  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-22 20:10:23  

Additional Information
 Earth MOID = .950283 au 
 Jupiter MOID = 2.46532 au 
 T_jup = 3.591 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 14.8   n/a MPO279640  

11843 (1987 DM6)          Discovered 1987-Feb-23 by Debehogne, H. at La Silla
Reference: 19991026/Numbers.arcLast Updated: 2004-04-19

Alternate Designations
 1987 DM6 = 1989 WJ4 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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