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233950 (2009 WO252)
Classification: Outer Main-belt Asteroid          SPK-ID: 2233950
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 9 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1580270841749594 6.4145e-08  
a 3.977254310216504 6.8209e-08 au
q 3.3487404085507 2.5845e-07 au
i 3.552849011636511 8.4577e-06 deg
node 143.8986912986862 0.0001299 deg
peri 311.6140617216616 0.0001345 deg
M 95.33245359046701 3.3342e-05 deg
tp 2458233.294445306909
(2018-Apr-24.79444531)
0.00026097 TDB
period 2897.166592144979
7.93
7.4529e-05
2.04e-07
d
yr
n .1242593370281363 3.1965e-09 deg/d
Q 4.605768211882308 7.8988e-08 au
  Orbit Determination Parameters
   # obs. used (total)      173  
   data-arc span      6730 days (18.43 yr)  
   first obs. used      2001-11-21  
   last obs. used      2020-04-25  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .53743  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-21 11:14:39  

Additional Information
 Earth MOID = 2.36703 au 
 Jupiter MOID = .610746 au 
 T_jup = 3.032 
[ 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 15.3   n/a MPO433528  
diameter diameter 5.657 km 0.717 urn:nasa:pds:neowise_diameters_albedos::2.0[hildas] (http://adsabs.harvard.edu/abs/2012ApJ...744..197G)  
geometric albedo albedo 0.032   0.009 urn:nasa:pds:neowise_diameters_albedos::2.0[hildas] (http://adsabs.harvard.edu/abs/2012ApJ...744..197G)  

233950 (2009 WO252)          Discovered 2009-Nov-26 by Spacewatch at Kitt Peak
Reference: 20100228/Numbers.arcLast Updated: 2010-03-03

[ show close-approach data ]
Alternate Designations
 2009 WO252 = 2008 SF25 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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