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136204 (2003 WL7)
Classification: Centaur          SPK-ID: 2136204
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 17 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2550119434520619 3.7219e-06  
a 20.04492474448259 0.00011244 au
q 14.93322952904176 9.4939e-06 au
i 11.1769371747003 8.1711e-06 deg
node 4.656799746677935 8.4286e-05 deg
peri 70.15201975311463 0.00017173 deg
M 36.90125173929684 0.0003762 deg
tp 2455640.466019420045
(2011-Mar-19.96601942)
0.0084442 TDB
period 32779.70735395529
89.75
0.27581
0.0007551
d
yr
n .01098240433060369 9.2406e-08 deg/d
Q 25.15661995992342 0.00014111 au
  Orbit Determination Parameters
   # obs. used (total)      182  
   data-arc span      6766 days (18.52 yr)  
   first obs. used      2001-10-11  
   last obs. used      2020-04-20  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      1  
   norm. resid. RMS      .45129  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-20 22:36:51  

Additional Information
 Earth MOID = 13.9659 au 
 Jupiter MOID = 9.98911 au 
 T_jup = 3.983 
[ 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 8.8   n/a MPO385591  
diameter diameter 118.000 km 32.800 urn:nasa:pds:neowise_diameters_albedos::2.0[centaurs] (http://adsabs.harvard.edu/abs/2013ApJ...773...22B)  
rotation period rot_per 8.24 h n/a LCDB (Rev. 2019-August); Warner et al., 2009 Result based on less than full coverage, so that the period may be wrong by 30 percent or so.
Published Reference List:
[Thirouin, A.; Ortiz, J.L.; Duffard, R.; Santos-Sanz, P.; et al. (2010) Astron. Astrophys. 522, A93.]
geometric albedo albedo 0.046   0.029 urn:nasa:pds:neowise_diameters_albedos::2.0[centaurs] (http://adsabs.harvard.edu/abs/2013ApJ...773...22B)  

136204 (2003 WL7)          Discovered 2003-Nov-16 by Spacewatch at Kitt Peak
Reference: 20060907/Numbers.arcLast Updated: 2006-09-10
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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