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(2010 WG9)
Classification: TransNeptunian Object          SPK-ID: 3554395
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 7 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .6483065974304383 1.5736e-05  
a 53.25297793471834 0.0026057 au
q 18.72872100682288 0.00010395 au
i 70.3613329816814 3.2503e-05 deg
node 92.05870871072422 1.6202e-05 deg
peri 292.8512468653387 0.0007595 deg
M 13.7560908468139 0.0010937 deg
tp 2453776.660750325113
(2006-Feb-10.16075033)
0.043707 TDB
period 141943.0964528126
388.62
10.418
0.02852
d
yr
n .0025362276080801 1.8615e-07 deg/d
Q 87.7772348626138 0.0042949 au
  Orbit Determination Parameters
   # obs. used (total)      123  
   data-arc span      2636 days (7.22 yr)  
   first obs. used      2009-12-24  
   last obs. used      2017-03-13  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      2  
   norm. resid. RMS      .48301  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-15 04:31:48  

Additional Information
 Earth MOID = 18.2283 au 
 Jupiter MOID = 15.7953 au 
 T_jup = 1.735 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 8.3   n/a MPO456786  
diameter diameter 112.700 km 61.900 urn:nasa:pds:neowise_diameters_albedos::2.0[centaurs] (http://adsabs.harvard.edu/abs/2013ApJ...773...22B)  
rotation period rot_per 263.8 h n/a LCDB (Rev. 2020-October); 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:
[Rabinowitz, D.; Schwamb, M.E.; Hadjiyska, E.; Tourtellotte, S.; Rojo, P. (2013) Astron. J. 146, A17.]
geometric albedo albedo 0.074   0.080 urn:nasa:pds:neowise_diameters_albedos::2.0[centaurs] (http://adsabs.harvard.edu/abs/2013ApJ...773...22B)  
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters ]
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