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JPL Small-Body Database Browser
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423623 (2005 WJ155)
Classification: Main-belt Asteroid          SPK-ID: 2423623
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 13 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .09842602271391174 1.0421e-07  
a 2.651766115780321 2.9521e-08 au
q 2.390763323836545 2.855e-07 au
i 13.39683571133303 9.4407e-06 deg
node 103.2385793636625 2.9088e-05 deg
peri 328.9053347218339 4.305e-05 deg
M 120.2228449425318 2.9379e-05 deg
tp 2458473.772792029985
(2018-Dec-21.27279203)
0.00012862 TDB
period 1577.252600866726
4.32
2.6338e-05
7.211e-08
d
yr
n .2282449873927449 3.8114e-09 deg/d
Q 2.912768907724096 3.2426e-08 au
  Orbit Determination Parameters
   # obs. used (total)      169  
   data-arc span      6248 days (17.11 yr)  
   first obs. used      2001-12-17  
   last obs. used      2019-01-25  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .53222  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-14 07:11:59  

Additional Information
 Earth MOID = 1.41556 au 
 Jupiter MOID = 2.31459 au 
 T_jup = 3.344 
[ 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 16.6   n/a MPO419087  

423623 (2005 WJ155)          Discovered 2005-Nov-29 by NEAT at Palomar
Reference: Last Updated: 2015-02-04

Alternate Designations
 2005 WJ155 = 2001 YK144 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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