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JPL Small-Body Database Browser
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442465 (2011 UA281)
Classification: Outer Main-belt Asteroid          SPK-ID: 2442465
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 16 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1519778214845103 1.0297e-07  
a 3.206094592718923 7.8167e-08 au
q 2.718839321044233 3.0467e-07 au
i 20.1897725640043 1.2674e-05 deg
node 80.8201062771538 2.1054e-05 deg
peri 309.7001846988272 4.5249e-05 deg
M 119.5578007625528 3.9079e-05 deg
tp 2457904.132745002282
(2017-May-30.63274500)
0.00021575 TDB
period 2096.828564930401
5.74
7.6684e-05
2.099e-07
d
yr
n .1716878556602215 6.2788e-09 deg/d
Q 3.693349864393614 9.0047e-08 au
  Orbit Determination Parameters
   # obs. used (total)      113  
   data-arc span      4876 days (13.35 yr)  
   first obs. used      2005-09-29  
   last obs. used      2019-02-04  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .62585  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-14 14:26:10  

Additional Information
 Earth MOID = 1.77122 au 
 Jupiter MOID = 1.79873 au 
 T_jup = 3.079 
[ 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 15.6   n/a MPO437720  
diameter diameter 5.350 km 0.180 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.013   0.002 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

442465 (2011 UA281)          Discovered 2005-Sep-29 by Siding Spring Survey at Siding Spring
Reference: Last Updated: 2015-09-02

[ show close-approach data ]
Alternate Designations
 2011 UA281 = 2010 HX52 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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