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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 2459396.5 (2021-Jul-01.0) TDB
Reference: JPL 21 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .04839872027304409 4.793e-08  
a 5.265537494985954 1.2215e-07 au
q 5.010692218678903 3.3793e-07 au
i 10.99156997542126 6.5417e-06 deg
node 47.78572956654076 2.7039e-05 deg
peri 60.52732870875212 8.6269e-05 deg
M 303.4851546151789 8.4063e-05 deg
tp 2460089.323379064338
(2023-May-24.82337906)
0.0010414 TDB
period 4413.290256123579
12.08
0.00015357
4.205e-07
d
yr
n .08157179317641497 2.8385e-09 deg/d
Q 5.520382771293004 1.2806e-07 au
  Orbit Determination Parameters
   # obs. used (total)      793  
   data-arc span      8104 days (22.19 yr)  
   first obs. used      1998-12-17  
   last obs. used      2021-02-23  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .52924  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 18:10:52  

Additional Information
 Earth MOID = 4.04387 au 
 Jupiter MOID = .0675433 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 12.08   n/a E2021B55  
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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