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212347 (2005 UX121)
Classification: Main-belt Asteroid          SPK-ID: 2212347
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 16 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1886438669818448 4.2908e-08  
a 3.145327521386128 2.9901e-08 au
q 2.551980774827428 1.398e-07 au
i 2.195769840251633 5.3785e-06 deg
node 20.9456575297468 0.00012258 deg
peri 237.8780906797213 0.00012359 deg
M 347.1146934260631 1.3585e-05 deg
tp 2459073.427192476345
(2020-Aug-11.92719248)
7.6908e-05 TDB
period 2037.498226436275
5.58
2.9054e-05
7.955e-08
d
yr
n .1766872703637465 2.5195e-09 deg/d
Q 3.738674267944829 3.5542e-08 au
  Orbit Determination Parameters
   # obs. used (total)      306  
   data-arc span      6213 days (17.01 yr)  
   first obs. used      2003-04-25  
   last obs. used      2020-04-28  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .58453  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-21 08:45:31  

Additional Information
 Earth MOID = 1.53768 au 
 Jupiter MOID = 1.34177 au 
 T_jup = 3.180 
[ 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 16.0   n/a MPO454525  
diameter diameter 4.061 km 0.701 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.047   0.033 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

212347 (2005 UX121)          Discovered 2005-Oct-24 by Spacewatch at Kitt Peak
Reference: 20090409/Numbers.arcLast Updated: 2009-04-10

[ show close-approach data ]
Alternate Designations
 2005 UX121 = 2003 HX30 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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