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JPL Small-Body Database Browser
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233823 (2008 UM208)
Classification: Main-belt Asteroid          SPK-ID: 2233823
[ 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 .01537146102293163 7.025e-08  
a 2.915119675520567 3.7883e-08 au
q 2.870310027051122 1.9638e-07 au
i 2.926912981061876 6.8771e-06 deg
node .945089379244494 0.00013077 deg
peri 166.9970194423818 0.00024334 deg
M 273.7093499701646 0.00020644 deg
tp 2459036.256876976489
(2020-Jul-05.75687698)		 0.0010437 TDB
period 1817.954502107664
4.98		 3.5437e-05
9.702e-08		 d
yr
n .1980247578157926 3.8601e-09 deg/d
Q 2.959929323990013 3.8465e-08 au
   Orbit Determination Parameters
   # obs. used (total)      165  
   data-arc span      5474 days (14.99 yr)  
   first obs. used      2003-10-21  
   last obs. used      2018-10-16  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .5368  
   source      ORB  
   producer      Otto Matic  
   solution date      2018-Oct-31 04:04:26  

Additional Information
 Earth MOID = 1.87476 au 
 Jupiter MOID = 2.00267 au 
 T_jup = 3.280 
[ 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 MPO418249  
diameter diameter 3.647 km 0.841 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.033   0.011 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

233823 (2008 UM208)          Discovered 2008-Oct-23 by Spacewatch at Kitt Peak
Reference: 20100228/Numbers.arcLast Updated: 2010-03-03
[ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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