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6204 MacKenzie (1981 JB3)
Classification: Main-belt Asteroid          SPK-ID: 2006204
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 29 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1152529980012095 3.1279e-08  
a 2.197524152335379 6.2187e-09 au
q 1.94425290559866 7.0615e-08 au
i 5.154668654113266 3.5209e-06 deg
node 54.18416656571656 3.449e-05 deg
peri 188.6385915963229 3.8229e-05 deg
M 342.9432481646285 1.5395e-05 deg
tp 2459056.875803191314
(2020-Jul-26.37580319)
5.083e-05 TDB
period 1189.868349188604
3.26
5.0507e-06
1.383e-08
d
yr
n .3025544802880853 1.2843e-09 deg/d
Q 2.450795399072099 6.9354e-09 au
  Orbit Determination Parameters
   # obs. used (total)      1824  
   data-arc span      25459 days (69.70 yr)  
   first obs. used      1950-12-09  
   last obs. used      2020-08-22  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .48887  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-13 03:37:35  

Additional Information
 Earth MOID = .931572 au 
 Jupiter MOID = 2.55283 au 
 T_jup = 3.654 
[ 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 14.3   n/a MPO302102  
diameter diameter 2.924 km 0.081 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.474   0.046 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

6204 MacKenzie (1981 JB3)          Discovered 1981-May-06 by Shoemaker, C. S. at Palomar
Reference: DISCOVERY.DBLast Updated: 2003-08-29

Alternate Designations
 1981 JB3 = 1968 KF = 1984 DY2 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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