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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 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 20 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .04814956426971637 4.7873e-08  
a 5.263621674114649 1.223e-07 au
q 5.010180584025393 3.3738e-07 au
i 10.99326436846595 6.544e-06 deg
node 47.78429027410697 2.7095e-05 deg
peri 60.85481118599742 8.6803e-05 deg
M 287.152166125366 8.4403e-05 deg
tp 2460093.064415495437
(2023-May-28.56441550)
0.0010481 TDB
period 4410.881868242392
12.08
0.00015373
4.209e-07
d
yr
n .08161633223322971 2.8445e-09 deg/d
Q 5.517062764203904 1.2819e-07 au
  Orbit Determination Parameters
   # obs. used (total)      783  
   data-arc span      8062 days (22.07 yr)  
   first obs. used      1998-12-17  
   last obs. used      2021-01-12  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .532  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Feb-24 10:01:15  

Additional Information
 Earth MOID = 4.04308 au 
 Jupiter MOID = .07005 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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