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308590 (2005 UN522)
Classification: Main-belt Asteroid          SPK-ID: 2308590
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 14 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .05160394598380069 5.3284e-08  
a 3.113666514807229 3.6664e-08 au
q 2.952989036165548 1.782e-07 au
i 18.7082468510587 7.7563e-06 deg
node 189.8064507922317 1.727e-05 deg
peri 86.50576781514027 7.8274e-05 deg
M 327.4235393308911 7.4299e-05 deg
tp 2459182.096706676177
(2020-Nov-28.59670668)
0.00041351 TDB
period 2006.811454057574
5.49
3.5446e-05
9.705e-08
d
yr
n .179389049864209 3.1685e-09 deg/d
Q 3.27434399344891 3.8556e-08 au
  Orbit Determination Parameters
   # obs. used (total)      237  
   data-arc span      5371 days (14.70 yr)  
   first obs. used      2005-10-01  
   last obs. used      2020-06-15  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .58884  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Jun-24 05:24:52  

Additional Information
 Earth MOID = 2.0141 au 
 Jupiter MOID = 1.8168 au 
 T_jup = 3.135 
[ 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 15.8   n/a MPO433986  
diameter diameter 3.227 km 0.884 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.068   0.027 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

308590 (2005 UN522)          Discovered 2005-Oct-27 by Becker, A. C. at Apache Point
Reference: 20111210/Numbers.arcLast Updated: 2011-12-12

[ show close-approach data ]
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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