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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 2459000.5 (2020-May-31.0) TDB
Reference: JPL 6 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .6475660560844028 1.573e-05  
a 53.15508929158362 0.002595 au
q 18.73365775821854 0.00010398 au
i 70.37663973991995 3.2519e-05 deg
node 92.05895165766846 1.6201e-05 deg
peri 292.855750539557 0.00076034 deg
M 13.29031915786349 0.0010578 deg
tp 2453774.750177291550
(2006-Feb-08.25017729)
0.043792 TDB
period 141551.9005848667
387.55
10.366
0.02838
d
yr
n .002543236781085562 1.8624e-07 deg/d
Q 87.5765208249487 0.0042754 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.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      2  
   norm. resid. RMS      .48316  
   source      ORB  
   producer      Otto Matic  
   solution date      2018-Sep-10 02:54:01  

Additional Information
 Earth MOID = 18.2336 au 
 Jupiter MOID = 15.7992 au 
 T_jup = 1.734 
[ 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. 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:
[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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