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385190 (1996 XK2)
Classification: Main-belt Asteroid          SPK-ID: 2385190
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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For accurate long-term ephemerides, please instead use our Horizons system.This orbit viewer was implemented using two-body methods, and hence should not be used for determining accurate long-term trajectories (over several years or decades) or planetary encounter circumstances.


Orbital Elements at Epoch 2459396.5 (2021-Jul-01.0) TDB
Reference: JPL 18 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2023969576188126 5.3434e-08  
a 3.141083572797733 2.8785e-08 au
q 2.505337814037042 1.5925e-07 au
i 15.41479717839585 7.2464e-06 deg
node 232.0573652996699 1.9395e-05 deg
peri 235.2770332974736 2.6235e-05 deg
M 116.0953999573183 1.7047e-05 deg
tp 2458740.762266159297
(2019-Sep-14.26226616)
9.3685e-05 TDB
period 2033.37586389677
5.57
2.7951e-05
7.653e-08
d
yr
n .1770454771259527 2.4337e-09 deg/d
Q 3.776829331558424 3.4611e-08 au
  Orbit Determination Parameters
   # obs. used (total)      249  
   data-arc span      9030 days (24.72 yr)  
   first obs. used      1996-11-08  
   last obs. used      2021-07-30  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .57313  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Aug-25 20:32:33  

Additional Information
 Earth MOID = 1.55727 au 
 Jupiter MOID = 1.67862 au 
 T_jup = 3.124 
[ hide covariance matrix ]
Orbital Elements at Epoch 2458157.5 (2018-Feb-08.0) TDB
Reference: JPL 18 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2028424364459582 5.3345e-08  
q 2.504975391890256 1.5916e-07 au
tp 2458741.753860221139
(2019-Sep-15.25386022)
9.3547e-05 TDB
node 232.0697161781602 1.9397e-05 deg
peri 235.5465008198148 2.6215e-05 deg
i 15.41321230988552 7.2459e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      249  
   data-arc span      9030 days (24.72 yr)  
   first obs. used      1996-11-08  
   last obs. used      2021-07-30  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .57313  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Aug-25 20:32:33  

Additional Information
 Jupiter MOID = 1.67862 au 
 T_jup = 3.124 
Orbit Covariance (6×6)
  e q tp node peri i
e 2.845700861916584E-15 -8.418699321646895E-15 -6.156423189200485E-13 2.327918915441536E-15 -2.352728193325313E-13 -1.064182152219446E-14
q -8.418699321646895E-15 2.533232629658294E-14 2.44921657344054E-12 -4.860878693166651E-15 7.784675826813371E-13 3.134568630675961E-14
tp -6.156423189200485E-13 2.44921657344054E-12 8.750976946895176E-9 1.381700473404932E-11 1.654232349906632E-9 -1.479855052553416E-11
node 2.327918915441536E-15 -4.860878693166651E-15 1.381700473404932E-11 3.762286344876993E-10 -3.595451334573497E-10 -1.582928628134012E-11
peri -2.352728193325313E-13 7.784675826813371E-13 1.654232349906632E-9 -3.595451334573497E-10 6.872150069095643E-10 1.280398720629515E-11
i -1.064182152219446E-14 3.134568630675961E-14 -1.479855052553416E-11 -1.582928628134012E-11 1.280398720629515E-11 5.250276459545668E-11

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 15.96   n/a MPO639049  

385190 (1996 XK2)          Discovered 1996-Dec-04 by Comba, P. G. at Prescott
Reference: Last Updated: 2014-02-19

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Alternate Designations
 1996 XK2 = 1996 VQ20 = 2007 TF44 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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