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39459 (4266 T-3)
Classification: Main-belt Asteroid          SPK-ID: 2039459
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 21 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1472465830665984 3.9414e-08  
a 3.086164831024917 1.9557e-08 au
q 2.631737604876192 1.2755e-07 au
i 17.79122310602029 5.4202e-06 deg
node 41.76787492098028 1.265e-05 deg
peri 281.7479285781786 2.2069e-05 deg
M 352.1962247929737 1.8585e-05 deg
tp 2459043.426882897432
(2020-Jul-12.92688290)
0.00010233 TDB
period 1980.282290699699
5.42
1.8823e-05
5.153e-08
d
yr
n .181792263502392 1.728e-09 deg/d
Q 3.540592057173642 2.2436e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1429  
   data-arc span      15634 days (42.80 yr)  
   first obs. used      1977-10-11  
   last obs. used      2020-07-31  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .47491  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Aug-25 03:34:00  

Additional Information
 Earth MOID = 1.69243 au 
 Jupiter MOID = 2.0018 au 
 T_jup = 3.137 
[ 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 13.5   n/a MPO395375  
diameter diameter 15.290 km 2.234 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)  
geometric albedo albedo 0.044   0.032 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)  

39459 (4266 T-3)          Discovered 1977-Oct-16 by van Houten, C. J., van Houten-Groeneveld, I., Gehrels, T. at Palomar
Reference: 20020328/Numbers.arcLast Updated: 2004-04-19

Alternate Designations
 4266 T-3 = 1999 XX163 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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