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JPL Small-Body Database Browser
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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 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 16 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .08390531396484634 8.1387e-08  
a 5.301242949633225 2.9743e-07 au
q 4.856440495540321 6.373e-07 au
i 25.14754529815506 7.2332e-06 deg
node 74.06605159672742 1.6357e-05 deg
peri 253.5680003247626 6.7108e-05 deg
M 248.0964256387298 7.4613e-05 deg
tp 2459986.318793594864
(2023-Feb-10.81879359)		 0.0010016 TDB
period 4458.255855916776
12.21		 0.0003752
1.027e-06		 d
yr
n .08074906681773902 6.7958e-09 deg/d
Q 5.746045403726128 3.2239e-07 au
   Orbit Determination Parameters
   # obs. used (total)      234  
   data-arc span      6755 days (18.49 yr)  
   first obs. used      2000-12-03  
   last obs. used      2019-06-02  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .61972  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Sep-24 04:19:28  

Additional Information
 Earth MOID = 3.93985 au 
 Jupiter MOID = .172773 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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