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20097 (1994 UL2)
Classification: Main-belt Asteroid          SPK-ID: 2020097
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 27 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1256314278855878 5.816e-08  
a 3.169599091387746 2.3294e-08 au
q 2.771397831711842 1.8787e-07 au
i 17.10623740382913 4.9288e-06 deg
node 54.16870625230697 1.937e-05 deg
peri 302.532460092377 2.5871e-05 deg
M 162.0037137905468 1.8029e-05 deg
tp 2457672.971213517023
(2016-Oct-11.47121352)
0.00010137 TDB
period 2061.127830474193
5.64
2.2722e-05
6.221e-08
d
yr
n .174661655952303 1.9254e-09 deg/d
Q 3.56780035106365 2.6221e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1439  
   data-arc span      13412 days (36.72 yr)  
   first obs. used      1982-08-20  
   last obs. used      2019-05-10  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .44971  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-May-30 02:48:59  

Additional Information
 Earth MOID = 1.81153 au 
 Jupiter MOID = 2.00442 au 
 T_jup = 3.122 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 12.3   n/a MPO474030  
diameter diameter 20.010 km 0.083 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.053   0.006 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

20097 (1994 UL2)          Discovered 1994-Oct-31 by Ueda, S., Kaneda, H. at Kushiro
Reference: 20010109/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1994 UL2 = 2000 QX217 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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