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JPL Small-Body Database Browser
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266912 (2009 WZ248)
Classification: Main-belt Asteroid          SPK-ID: 2266912
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 14 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .08888375384912434 5.8235e-08  
a 2.876514913666745 3.8052e-08 au
q 2.620839470137055 1.7562e-07 au
i 4.814509534065883 6.5285e-06 deg
node 146.0424019720633 6.802e-05 deg
peri 185.4160341611179 7.5621e-05 deg
M 48.58556897468628 3.2005e-05 deg
tp 2458360.006598958265
(2018-Aug-29.50659896)
0.00015871 TDB
period 1781.961726539268
4.88
3.5359e-05
9.681e-08
d
yr
n .2020245410652859 4.0087e-09 deg/d
Q 3.132190357196435 4.1434e-08 au
  Orbit Determination Parameters
   # obs. used (total)      215  
   data-arc span      5439 days (14.89 yr)  
   first obs. used      2004-12-14  
   last obs. used      2019-11-05  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .60185  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Dec-04 19:34:57  

Additional Information
 Earth MOID = 1.60917 au 
 Jupiter MOID = 2.1695 au 
 T_jup = 3.285 
[ 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 16.3   n/a MPO454984  
diameter diameter 3.974 km 0.331 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.034   0.006 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

266912 (2009 WZ248)          Discovered 2009-Nov-18 by Mt. Lemmon Survey at Mount Lemmon
Reference: 20110218/Numbers.arcLast Updated: 2011-02-22

Alternate Designations
 2009 WZ248 = 2007 EZ168 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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