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215510 (2002 UN2)
Classification: Main-belt Asteroid          SPK-ID: 2215510
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

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For accurate long-term ephemerides, please instead use our Horizons system.This orbit viewer was implemented using two-body methods, and hence should not be used for determining accurate long-term trajectories (over several years or decades) or planetary encounter circumstances.


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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 .1577732046542631 4.7654e-08  
a 3.130183493474512 2.9742e-08 au
q 2.636324412553162 1.5486e-07 au
i 25.86925468960702 8.0962e-06 deg
node 337.8909288714157 1.1249e-05 deg
peri 59.55260726130379 3.033e-05 deg
M 65.58822429301459 2.5418e-05 deg
tp 2458631.966904822471
(2019-May-28.46690482)
0.00014269 TDB
period 2022.800825818982
5.54
2.883e-05
7.893e-08
d
yr
n .1779710564703003 2.5365e-09 deg/d
Q 3.624042574395862 3.4434e-08 au
  Orbit Determination Parameters
   # obs. used (total)      566  
   data-arc span      6341 days (17.36 yr)  
   first obs. used      2002-09-25  
   last obs. used      2020-02-04  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .5526  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-25 03:24:04  

Additional Information
 Earth MOID = 1.71931 au 
 Jupiter MOID = 2.07518 au 
 T_jup = 3.041 
[ 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 14.7   n/a MPO454548  
diameter diameter 6.906 km 0.257 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.064   0.011 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

215510 (2002 UN2)          Discovered 2002-Oct-28 by LINEAR at Socorro
Reference: 20090607/Numbers.arcLast Updated: 2009-06-08
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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