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249995 (2001 XO128)
Classification: Jupiter Trojan          SPK-ID: 2249995
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 .0844810270821371 8.0554e-08  
a 5.30529396859343 2.7526e-07 au
q 4.85709728515399 6.3709e-07 au
i 25.14439213250519 7.1993e-06 deg
node 74.06952181855972 1.5256e-05 deg
peri 253.0109542887189 5.9841e-05 deg
M 281.0165528526691 6.6549e-05 deg
tp 2459979.755885129715
(2023-Feb-04.25588513)
0.00087105 TDB
period 4463.367089930951
12.22
0.00034737
9.51e-07
d
yr
n .08065659685759105 6.2772e-09 deg/d
Q 5.75349065203287 2.9852e-07 au
  Orbit Determination Parameters
   # obs. used (total)      245  
   data-arc span      7078 days (19.38 yr)  
   first obs. used      2000-12-03  
   last obs. used      2020-04-20  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .622  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-21 13:47:47  

Additional Information
 Earth MOID = 3.94014 au 
 Jupiter MOID = .174907 au 
 T_jup = 2.802 
[ 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 12.9   n/a MPO433637  
diameter diameter 16.206 km 0.482 urn:nasa:pds:neowise_diameters_albedos::2.0[jupiter_trojans] (http://adsabs.harvard.edu/abs/2011ApJ...742...40G)  
geometric albedo albedo 0.061   0.012 urn:nasa:pds:neowise_diameters_albedos::2.0[jupiter_trojans] (http://adsabs.harvard.edu/abs/2011ApJ...742...40G)  

249995 (2001 XO128)          Discovered 2001-Dec-14 by LINEAR at Socorro
Reference: 20100923/Numbers.arcLast Updated: 2010-09-27
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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