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249321 (2008 UO215)
Classification: Main-belt Asteroid          SPK-ID: 2249321
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 20 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .03003913858035503 5.3169e-08  
a 3.152538558605762 4.2162e-08 au
q 3.057839015963891 1.672e-07 au
i 11.84600900410496 4.589e-06 deg
node 256.8658339567075 2.9677e-05 deg
peri 230.3586307705114 9.4102e-05 deg
M 299.0776314028531 9.0686e-05 deg
tp 2459346.489816715659
(2021-May-11.98981672)
0.00051754 TDB
period 2044.509051203739
5.60
4.1015e-05
1.123e-07
d
yr
n .1760813921503766 3.5324e-09 deg/d
Q 3.247238101247634 4.3429e-08 au
  Orbit Determination Parameters
   # obs. used (total)      393  
   data-arc span      8516 days (23.32 yr)  
   first obs. used      1996-10-04  
   last obs. used      2020-01-28  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .5121  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-25 10:21:41  

Additional Information
 Earth MOID = 2.08769 au 
 Jupiter MOID = 1.92071 au 
 T_jup = 3.173 
[ 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 15.0   n/a MPO411058  
diameter diameter 3.946 km 1.213 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.150   0.109 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

249321 (2008 UO215)          Discovered 2008-Oct-24 by CSS at Catalina
Reference: 20100824/Numbers.arcLast Updated: 2010-08-27

[ show close-approach data ]
Alternate Designations
 2008 UO215 = 2002 TB190 = 2005 EP199 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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