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233948 (2009 WQ169)
Classification: Main-belt Asteroid          SPK-ID: 2233948
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 19 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .05286998456918888 5.1189e-08  
a 2.790552761367126 2.6613e-08 au
q 2.643016279934139 1.425e-07 au
i 3.23778665289642 5.1828e-06 deg
node 276.8657225628369 0.0001134 deg
peri 150.9677011665399 0.00013109 deg
M 92.08690302114539 6.3724e-05 deg
tp 2458564.958892784572
(2019-Mar-22.45889278)
0.00030134 TDB
period 1702.682938110648
4.66
2.4357e-05
6.669e-08
d
yr
n .2114310256726173 3.0245e-09 deg/d
Q 2.938089242800114 2.802e-08 au
  Orbit Determination Parameters
   # obs. used (total)      321  
   data-arc span      9284 days (25.42 yr)  
   first obs. used      1994-09-01  
   last obs. used      2020-02-01  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .53651  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-25 07:25:49  

Additional Information
 Earth MOID = 1.65758 au 
 Jupiter MOID = 2.22428 au 
 T_jup = 3.325 
[ 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 16.0   n/a MPO413119  
diameter diameter 4.694 km 0.156 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.029   0.003 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

233948 (2009 WQ169)          Discovered 2009-Nov-22 by Spacewatch at Kitt Peak
Reference: 20100228/Numbers.arcLast Updated: 2010-03-03

[ show close-approach data ]
Alternate Designations
 2009 WQ169 = 2006 CR6 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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