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13364 (1998 UK20)
Classification: Main-belt Asteroid          SPK-ID: 2013364
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2457600.5 (2016-Jul-31.0) TDB
Reference: JPL 21 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1131550925386048 5.7167e-08  
a 2.735103765787721 2.6759e-08 au
q 2.425612846067325 1.6025e-07 au
i 15.09319514021467 7.9305e-06 deg
node 20.99618192165904 2.3366e-05 deg
peri 231.817743658339 4.1231e-05 deg
M 117.3913559702947 3.5984e-05 deg
tp 2457061.743210278221
(2015-Feb-08.24321028)
0.00016365 JED
period 1652.186761936026
4.52
2.4246e-05
6.638e-08
d
yr
n .2178930422963524 3.1976e-09 deg/d
Q 3.044594685508117 2.9787e-08 au
  Orbit Determination Parameters
   # obs. used (total)      996  
   data-arc span      14615 days (40.01 yr)  
   first obs. used      1975-11-26  
   last obs. used      2015-12-01  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .48468  
   data source      ORB  
   producer      Otto Matic  
   solution date      2016-Jan-04 13:23:52  

Additional Information
 Earth MOID = 1.44271 au 
 Jupiter MOID = 2.03042 au 
 T_jup = 3.293 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 12.6 mag n/a MPO250344  
rotation period rot_per 9.1145 h n/a LCDB (Rev. 2016-February); 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. (2016) Astron. J. 150, A75.]

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 | Physical Parameters | Discovery Circumstances ]
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