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186646 (2003 QW64)
Classification: Outer Main-belt Asteroid          SPK-ID: 2186646
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 19 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .3114419338498578 5.2282e-08  
a 3.955323630014113 3.8306e-08 au
q 2.723469989680478 2.0878e-07 au
i 10.23156097851366 6.1541e-06 deg
node 78.18000404834885 3.3509e-05 deg
peri 297.5897766422024 3.478e-05 deg
M 80.70326241925679 1.1111e-05 deg
tp 2458556.389982932404
(2019-Mar-13.88998293)
8.2909e-05 TDB
period 2873.237081045257
7.87
4.1739e-05
1.143e-07
d
yr
n .1252942203673062 1.8201e-09 deg/d
Q 5.187177270347747 5.0236e-08 au
  Orbit Determination Parameters
   # obs. used (total)      515  
   data-arc span      6831 days (18.70 yr)  
   first obs. used      2002-07-06  
   last obs. used      2021-03-19  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .48746  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-May-04 10:14:22  

Additional Information
 Earth MOID = 1.74343 au 
 Jupiter MOID = .646455 au 
 T_jup = 2.946 
[ 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 14.15   n/a MPCxxxxx  
diameter diameter 8.574 km 0.336 urn:nasa:pds:neowise_diameters_albedos::2.0[hildas] (http://adsabs.harvard.edu/abs/2012ApJ...744..197G)  
rotation period rot_per 148.699 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:
[Pal, A.; Szakats, R.; Kiss, C.; Bodi, A.; et al. (2019) Ap. J. Supl. Ser. 247, id.26.]
geometric albedo albedo 0.055   0.013 urn:nasa:pds:neowise_diameters_albedos::2.0[hildas] (http://adsabs.harvard.edu/abs/2012ApJ...744..197G)  

186646 (2003 QW64)          Discovered 2003-Aug-23 by LINEAR at Socorro
Reference: 20080520/Numbers.arcLast Updated: 2008-05-22
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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