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332819 (2009 WQ252)
Classification: Main-belt Asteroid          SPK-ID: 2332819
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 12 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .08848269706037067 6.4453e-08  
a 3.121094404223383 6.1823e-08 au
q 2.844931553557667 1.9051e-07 au
i 19.04443141717758 7.4706e-06 deg
node 64.24539288088096 1.9549e-05 deg
peri 131.3603141220802 4.51e-05 deg
M 212.2508813772619 4.3996e-05 deg
tp 2459827.072938222919
(2022-Sep-04.57293822)
0.00025857 TDB
period 2013.996838248863
5.51
5.984e-05
1.638e-07
d
yr
n .1787490393048551 5.311e-09 deg/d
Q 3.397257254889099 6.7293e-08 au
  Orbit Determination Parameters
   # obs. used (total)      181  
   data-arc span      4932 days (13.50 yr)  
   first obs. used      2006-05-01  
   last obs. used      2019-11-01  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .65982  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Nov-08 09:46:41  

Additional Information
 Earth MOID = 1.87112 au 
 Jupiter MOID = 1.67651 au 
 T_jup = 3.126 
[ 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 15.6   n/a MPO455451  
diameter diameter 4.930 km 0.836 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.050   0.026 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

332819 (2009 WQ252)          Discovered 2009-Nov-08 by Mt. Lemmon Survey at Mount Lemmon
Reference: 20120703/Numbers.arcLast Updated: 2012-07-09

[ show close-approach data ]
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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