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68539 (2001 WL2)
Classification: Main-belt Asteroid          SPK-ID: 2068539
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

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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 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 22 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .08339776526631762 4.6857e-08  
a 2.214097388137818 8.1764e-09 au
q 2.029446613885133 1.0089e-07 au
i 6.12576110121084 2.8619e-06 deg
node 115.4428427466871 4.4911e-05 deg
peri 64.94761658422142 5.0586e-05 deg
M 210.3652577301994 2.4755e-05 deg
tp 2459700.676686846860
(2022-May-01.17668685)
8.4347e-05 TDB
period 1203.354278114128
3.29
6.6657e-06
1.825e-08
d
yr
n .2991637679338993 1.6572e-09 deg/d
Q 2.398748162390502 8.8582e-09 au
  Orbit Determination Parameters
   # obs. used (total)      1057  
   data-arc span      9041 days (24.75 yr)  
   first obs. used      1996-05-12  
   last obs. used      2021-02-11  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .49102  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 12:37:33  

Additional Information
 Earth MOID = 1.04153 au 
 Jupiter MOID = 2.57164 au 
 T_jup = 3.643 
[ 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 16.06   n/a MPCxxxxx  

68539 (2001 WL2)          Discovered 2001-Nov-17 by Kusnirak, P. at Ondrejov
Reference: 20030910/Numbers.arcLast Updated: 2004-04-19

Alternate Designations
 2001 WL2 = 1996 JM16 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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