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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 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 33 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1259898017581614 5.0185e-08  
a 3.169511911424005 2.143e-08 au
q 2.770185734033564 1.6639e-07 au
i 17.10589230283774 4.8557e-06 deg
node 54.16486562760861 1.5119e-05 deg
peri 302.3583974725431 2.1605e-05 deg
M 267.04543348357 1.7698e-05 deg
tp 2459732.675943007007
(2022-Jun-02.17594301)
0.00010359 TDB
period 2061.042793940194
5.64
2.0903e-05
5.723e-08
d
yr
n .1746688623149696 1.7714e-09 deg/d
Q 3.568838088814446 2.4129e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1865  
   data-arc span      13873 days (37.98 yr)  
   first obs. used      1982-08-20  
   last obs. used      2020-08-13  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .44741  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 03:13:06  

Additional Information
 Earth MOID = 1.80984 au 
 Jupiter MOID = 2.00829 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 12.36   n/a E2021B10  
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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