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JPL Small-Body Database Browser
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392643 (2011 UN135)
Classification: Main-belt Asteroid          SPK-ID: 2392643
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 13 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2549862440385968 6.3818e-08  
a 2.416481145673245 1.8745e-08 au
q 1.800311694547939 1.5451e-07 au
i 15.25833500464092 8.9966e-06 deg
node 209.243794478113 2.6496e-05 deg
peri 79.16975109165854 4.1544e-05 deg
M 69.61412388345811 2.0048e-05 deg
tp 2458335.180967895603
(2018-Aug-04.68096790)
7.788e-05 TDB
period 1372.061389689909
3.76
1.5965e-05
4.371e-08
d
yr
n .2623789304947656 3.053e-09 deg/d
Q 3.032650596798551 2.3525e-08 au
  Orbit Determination Parameters
   # obs. used (total)      118  
   data-arc span      7030 days (19.25 yr)  
   first obs. used      1999-04-09  
   last obs. used      2018-07-08  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .57217  
   source      ORB  
   producer      Otto Matic  
   solution date      2018-Oct-04 11:45:23  

Additional Information
 Earth MOID = .857139 au 
 Jupiter MOID = 2.30469 au 
 T_jup = 3.425 
[ 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 17.8   n/a MPO455786  
diameter diameter 2.435 km 0.642 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.082   0.039 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

392643 (2011 UN135)          Discovered 1999-Apr-09 by Spacewatch at Kitt Peak
Reference: Last Updated: 2014-04-17

Alternate Designations
 2011 UN135 = 1999 GW56 = 2010 LL39 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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