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233990 (1995 WK17)
Classification: Main-belt Asteroid          SPK-ID: 2233990
[ 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 11 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1415541586793434 1.8759e-07  
a 2.642505437549471 3.7835e-08 au
q 2.268447803531565 5.0275e-07 au
i 2.473187773706537 1.1482e-05 deg
node 322.6814622625355 0.00016625 deg
peri 203.9059306445852 0.00017071 deg
M 145.6470239524006 2.9267e-05 deg
tp 2458365.722717816918
(2018-Sep-04.22271782)		 0.00012642 TDB
period 1568.997535168263
4.30		 3.3697e-05
9.226e-08		 d
yr
n .2294458671417816 4.9278e-09 deg/d
Q 3.016563071567376 4.3191e-08 au
   Orbit Determination Parameters
   # obs. used (total)      147  
   data-arc span      8131 days (22.26 yr)  
   first obs. used      1995-10-19  
   last obs. used      2018-01-22  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .6375  
   source      ORB  
   producer      Otto Matic  
   solution date      2018-Oct-04 09:01:52  

Additional Information
 Earth MOID = 1.27576 au 
 Jupiter MOID = 1.96178 au 
 T_jup = 3.379 
[ 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 17.1   n/a MPO475908  
diameter diameter 2.188 km 0.315 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.049   0.007 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

233990 (1995 WK17)          Discovered 1995-Nov-17 by Spacewatch at Kitt Peak
Reference: 20100330/Numbers.arcLast Updated: 2010-04-05

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