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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 16 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .04797134510075463 5.0636e-08  
a 5.261611888857021 1.5456e-07 au
q 5.009205289150428 3.3783e-07 au
i 10.99494337489266 6.6517e-06 deg
node 47.7799262766236 3.524e-05 deg
peri 61.28187743754472 0.00010321 deg
M 270.3847014344121 0.00010195 deg
tp 2460097.878121488446
(2023-Jun-02.37812149)
0.0012791 TDB
period 4408.355828293156
12.07
0.00019425
5.318e-07
d
yr
n .0816630993554316 3.5984e-09 deg/d
Q 5.514018488563615 1.6198e-07 au
  Orbit Determination Parameters
   # obs. used (total)      566  
   data-arc span      7621 days (20.87 yr)  
   first obs. used      1998-12-17  
   last obs. used      2019-10-29  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .57925  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Nov-07 15:52:38  

Additional Information
 Earth MOID = 4.04242 au 
 Jupiter MOID = .0728593 au 
 T_jup = 2.961 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456895.5 (2014-Aug-26.0) TDB
Reference: JPL 16 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .04973588827464872 5.0632e-08  
q 4.984618116714477 3.3463e-07 au
tp 2455709.743957724858
(2011-May-28.24395772)
0.0011181 TDB
node 47.79496889412516 3.5223e-05 deg
peri 61.98568766387983 0.00010011 deg
i 11.00721682052463 6.6593e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      566  
   data-arc span      7621 days (20.87 yr)  
   first obs. used      1998-12-17  
   last obs. used      2019-10-29  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .57925  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Nov-07 15:52:38  

Additional Information
 Jupiter MOID = .0728593 au 
 T_jup = 2.961 
Orbit Covariance (6×6)
  e q tp node peri i
e 2.563638489745315E-15 -1.535884871280339E-14 3.817620377570303E-12 3.360761072296876E-15 2.402686029540748E-13 -1.612540444114305E-15
q -1.535884871280339E-14 1.119782324849186E-13 6.795023421776313E-11 -1.333643911991852E-14 6.554261796336127E-12 1.92123832793257E-14
tp 3.817620377570303E-12 6.795023421776313E-11 1.250204773702477E-6 1.152564587455408E-10 1.048611529205639E-7 4.391384410502343E-11
node 3.360761072296876E-15 -1.333643911991852E-14 1.152564587455408E-10 1.240625171463747E-9 -1.207992342653875E-9 -8.944889860224745E-11
peri 2.402686029540748E-13 6.554261796336127E-12 1.048611529205639E-7 -1.207992342653875E-9 1.002207113752064E-8 9.169200055826457E-11
i -1.612540444114305E-15 1.92123832793257E-14 4.391384410502343E-11 -8.944889860224745E-11 9.169200055826457E-11 4.434600084217458E-11

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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