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172532 (2003 UN8)
Classification: Main-belt Asteroid          SPK-ID: 2172532
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 14 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2177554218975258 4.7596e-08  
a 2.431157790648069 1.2525e-08 au
q 1.901760000246042 1.1987e-07 au
i 10.48898132058971 7.3548e-06 deg
node 38.65028769865408 3.491e-05 deg
peri 33.82778359749627 4.6755e-05 deg
M 115.20908018734 2.9545e-05 deg
tp 2458557.399381865879
(2019-Mar-14.89938187)
0.00011118 TDB
period 1384.58029756766
3.79
1.07e-05
2.93e-08
d
yr
n .2600065887348134 2.0092e-09 deg/d
Q 2.960555581050096 1.5252e-08 au
  Orbit Determination Parameters
   # obs. used (total)      368  
   data-arc span      7413 days (20.30 yr)  
   first obs. used      1999-10-08  
   last obs. used      2020-01-24  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .54911  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-24 16:50:48  

Additional Information
 Earth MOID = .92488 au 
 Jupiter MOID = 2.39323 au 
 T_jup = 3.452 
[ 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 16.6   n/a MPO469848  
diameter diameter 3.354 km 0.770 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.047   0.029 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

172532 (2003 UN8)          Discovered 2003-Oct-16 by LONEOS at Anderson Mesa
Reference: 20071224/Numbers.arcLast Updated: 2007-12-22
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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