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233809 (2008 UR148)
Classification: Main-belt Asteroid          SPK-ID: 2233809
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 21 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .05961302032875192 5.6523e-08  
a 3.06738307310405 4.033e-08 au
q 2.884527103611029 1.7612e-07 au
i 8.68397128253279 7.9744e-06 deg
node 47.29707554059828 4.3097e-05 deg
peri 211.3855477490037 9.0271e-05 deg
M 211.1405720999832 8.1159e-05 deg
tp 2459811.879996707138
(2022-Aug-20.37999671)
0.00044309 TDB
period 1962.232442615325
5.37
3.87e-05
1.06e-07
d
yr
n .1834645030739481 3.6183e-09 deg/d
Q 3.250239042597072 4.2735e-08 au
  Orbit Determination Parameters
   # obs. used (total)      444  
   data-arc span      8075 days (22.11 yr)  
   first obs. used      1997-11-25  
   last obs. used      2020-01-04  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .60308  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Jan-30 02:04:09  

Additional Information
 Earth MOID = 1.87404 au 
 Jupiter MOID = 1.77378 au 
 T_jup = 3.212 
[ 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 MPO454691  
diameter diameter 5.208 km 0.287 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.065   0.006 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

233809 (2008 UR148)          Discovered 2008-Oct-23 by Spacewatch at Kitt Peak
Reference: 20100228/Numbers.arcLast Updated: 2010-03-03

[ show close-approach data ]
Alternate Designations
 2008 UR148 = 2005 EM283 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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