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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 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 44 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .113994518924326 1.3561e-08  
a 2.7334998509278 1.1153e-08 au
q 2.421895850441568 3.6526e-08 au
i 15.08924890158487 2.5732e-07 deg
node 20.92455906598085 2.286e-06 deg
peri 231.3345689374364 1.0064e-05 deg
M 106.6573004770226 9.4103e-06 deg
tp 2458711.436675982427
(2019-Aug-15.93667598)
4.1971e-05 TDB
period 1650.733666227152
4.52
1.0103e-05
2.766e-08
d
yr
n .2180848475834391 1.3347e-09 deg/d
Q 3.045103851414031 1.2424e-08 au
  Orbit Determination Parameters
   # obs. used (total)      3288  
   data-arc span      16515 days (45.22 yr)  
   first obs. used      1975-11-26  
   last obs. used      2021-02-12  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .37746  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-12 23:54:15  

Additional Information
 Earth MOID = 1.43749 au 
 Jupiter MOID = 2.02822 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 12.86   n/a E2021B10  
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. 2020-October); 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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