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JPL Small-Body Database Browser
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393458 (2001 WE1)
Classification: Mars-crossing Asteroid          SPK-ID: 2393458
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 13 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .3131247345168987 7.6493e-08  
a 2.28648408537741 1.7053e-08 au
q 1.570529363166494 1.8116e-07 au
i 10.77084804460075 6.0041e-06 deg
node 69.03152492508083 3.7843e-05 deg
peri 262.6609225342726 3.9183e-05 deg
M 181.551106597253 7.4087e-06 deg
tp 2459626.482308864824
(2022-Feb-15.98230886)
2.7223e-05 TDB
period 1262.846896353283
3.46
1.4127e-05
3.868e-08
d
yr
n .2850701862906504 3.1891e-09 deg/d
Q 3.002438807588325 2.2392e-08 au
  Orbit Determination Parameters
   # obs. used (total)      273  
   data-arc span      6665 days (18.25 yr)  
   first obs. used      2001-10-25  
   last obs. used      2020-01-24  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .51429  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-26 04:50:30  

Additional Information
 Earth MOID = .606304 au 
 Jupiter MOID = 2.46331 au 
 T_jup = 3.513 
[ show covariance matrix ]

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 17.1   n/a MPO300534  

393458 (2001 WE1)          Discovered 2001-Nov-17 by LINEAR at Socorro
Reference: Last Updated: 2014-05-15

[ show close-approach data ]
Alternate Designations
 2001 WE1 = 2008 WJ112 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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