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181603 (2006 WL42)
Classification: Main-belt Asteroid          SPK-ID: 2181603
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 19 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1196923870614146 4.5713e-08  
a 2.699492803266561 1.4154e-08 au
q 2.376384065788476 1.2417e-07 au
i 5.004481298685589 4.6869e-06 deg
node 161.1320865262676 4.1571e-05 deg
peri 6.562407422714396 4.4441e-05 deg
M 332.2455337115297 1.4758e-05 deg
tp 2459325.397017438126
(2021-Apr-20.89701744)
6.6372e-05 TDB
period 1620.024892945019
4.44
1.2741e-05
3.488e-08
d
yr
n .2222188076045927 1.7477e-09 deg/d
Q 3.022601540744645 1.5848e-08 au
  Orbit Determination Parameters
   # obs. used (total)      451  
   data-arc span      7154 days (19.59 yr)  
   first obs. used      2001-09-11  
   last obs. used      2021-04-13  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .51356  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-May-04 10:09:39  

Additional Information
 Earth MOID = 1.38288 au 
 Jupiter MOID = 1.94507 au 
 T_jup = 3.352 
[ 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 16.29   n/a MPCxxxxx  

181603 (2006 WL42)          Discovered 2006-Nov-16 by Spacewatch at Kitt Peak
Reference: 20080321/Numbers.arcLast Updated: 2008-03-26

[ show close-approach data ]
Alternate Designations
 2006 WL42 = 2005 QL90 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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