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434640 (2005 WE144)
Classification: Mars-crossing Asteroid          SPK-ID: 2434640
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 9 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2863313556485019 6.5162e-08  
a 2.330502379035313 1.2303e-08 au
q 1.663206473504073 1.5751e-07 au
i 5.302614120730927 5.8744e-06 deg
node 171.8281222884474 4.0577e-05 deg
peri 194.7078712964384 4.2715e-05 deg
M 63.77517509565075 7.9718e-06 deg
tp 2458770.291204964342
(2019-Oct-13.79120496)
2.9185e-05 TDB
period 1299.489434384773
3.56
1.029e-05
2.817e-08
d
yr
n .2770318791937216 2.1937e-09 deg/d
Q 2.997798284566553 1.5826e-08 au
  Orbit Determination Parameters
   # obs. used (total)      224  
   data-arc span      5088 days (13.93 yr)  
   first obs. used      2005-11-25  
   last obs. used      2019-10-31  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .50699  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Nov-08 15:41:11  

Additional Information
 Earth MOID = .662272 au 
 Jupiter MOID = 2.46292 au 
 T_jup = 3.510 
[ 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 17.8   n/a MPO495163  

434640 (2005 WE144)          Discovered 2005-Nov-30 by NEAT at Palomar
Reference: Last Updated: 2015-06-04
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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