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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 ]

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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 31 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .125899250352223 5.0642e-08  
a 3.169098502623211 2.1591e-08 au
q 2.770111376850596 1.6756e-07 au
i 17.10688808410995 4.8854e-06 deg
node 54.1654055011425 1.5443e-05 deg
peri 302.4397236336869 2.1868e-05 deg
M 232.0068246529012 1.7595e-05 deg
tp 2459733.132781113746
(2022-Jun-02.63278111)
0.00010376 TDB
period 2060.639565240123
5.64
2.1059e-05
5.766e-08
d
yr
n .1747030417510448 1.7854e-09 deg/d
Q 3.568085628395826 2.431e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1779  
   data-arc span      13815 days (37.82 yr)  
   first obs. used      1982-08-20  
   last obs. used      2020-06-16  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .45243  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Jun-23 18:39:17  

Additional Information
 Earth MOID = 1.81112 au 
 Jupiter MOID = 2.00736 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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