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134957 (2001 DN18)
Classification: Jupiter Trojan          SPK-ID: 2134957
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 17 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .04797135584783978 4.9492e-08  
a 5.261611920487146 1.4816e-07 au
q 5.009205262716222 3.3684e-07 au
i 10.99494702318146 6.5623e-06 deg
node 47.77995168477149 3.4425e-05 deg
peri 61.28182590134097 0.00010089 deg
M 270.3847320218239 9.9266e-05 deg
tp 2460097.877756827661
(2023-Jun-02.37775683)
0.001244 TDB
period 4408.355868044335
12.07
0.0001862
5.098e-07
d
yr
n .08166309861905628 3.4492e-09 deg/d
Q 5.514018578258071 1.5526e-07 au
  Orbit Determination Parameters
   # obs. used (total)      582  
   data-arc span      7895 days (21.62 yr)  
   first obs. used      1998-12-17  
   last obs. used      2020-07-29  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .58008  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Aug-25 10:58:35  

Additional Information
 Earth MOID = 4.04242 au 
 Jupiter MOID = .072859 au 
 T_jup = 2.961 
[ 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 12.0   n/a MPO325409  
diameter diameter 26.039 km 1.652 urn:nasa:pds:neowise_diameters_albedos::2.0[jupiter_trojans] (http://adsabs.harvard.edu/abs/2011ApJ...742...40G)  
geometric albedo albedo 0.050   0.010 urn:nasa:pds:neowise_diameters_albedos::2.0[jupiter_trojans] (http://adsabs.harvard.edu/abs/2011ApJ...742...40G)  

134957 (2001 DN18)          Discovered 2001-Feb-16 by LINEAR at Socorro
Reference: 20060907/Numbers.arcLast Updated: 2006-09-10
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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