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13364 (1998 UK20)
Classification: Main-belt Asteroid          SPK-ID: 2013364
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 38 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1140984756826058 3.9545e-08  
a 2.734374300699147 1.4411e-08 au
q 2.422386361043683 1.1168e-07 au
i 15.08701748451914 4.6529e-06 deg
node 20.93067975135255 1.5013e-05 deg
peri 231.4821495454548 2.4335e-05 deg
M 62.88363000457733 1.959e-05 deg
tp 2458712.016834232007
(2019-Aug-16.51683423)
8.9739e-05 TDB
period 1651.525836993158
4.52
1.3056e-05
3.575e-08
d
yr
n .2179802410208926 1.7232e-09 deg/d
Q 3.046362240354611 1.6055e-08 au
  Orbit Determination Parameters
   # obs. used (total)      2739  
   data-arc span      16322 days (44.69 yr)  
   first obs. used      1975-11-26  
   last obs. used      2020-08-03  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .38458  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Aug-25 00:42:36  

Additional Information
 Earth MOID = 1.43943 au 
 Jupiter MOID = 2.02881 au 
 T_jup = 3.294 
[ 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 12.7   n/a MPO395132  
diameter diameter 11.329 km 0.070 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)  
rotation period rot_per 9.114 h n/a LCDB (Rev. 2019-August); Warner et al., 2009 Result based on less than full coverage, so that the period may be wrong by 30 percent or so.
Published Reference List:
[Waszczak, A.; Chang, C.-K.; Ofeck, E.O.; Laher, F.; et al. (2015) Astron. J. 150, A75.]
geometric albedo albedo 0.121   0.008 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

13364 (1998 UK20)          Discovered 1998-Oct-20 by Ueda, S., Kaneda, H. at Kushiro
Reference: 20000124/Numbers.arcLast Updated: 2004-04-19

Alternate Designations
 1998 UK20 = 1975 WT1 = 1980 XM1 = 1991 CH3 = 1996 DE3 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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