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JPL Small-Body Database Browser
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20846 Liyulin (2000 US103)
Classification: Main-belt Asteroid          SPK-ID: 2020846
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 .1080287970232911 4.6771e-08  
a 2.261909187626947 9.4001e-09 au
q 2.017557859111678 1.0511e-07 au
i 6.32348445390569 4.7722e-06 deg
node 14.72076946665134 3.7558e-05 deg
peri 324.584141611408 4.5435e-05 deg
M 222.306436342635 2.994e-05 deg
tp 2459075.750205314235
(2020-Aug-14.25020531)
0.00010483 TDB
period 1242.542275533394
3.40
7.7457e-06
2.121e-08
d
yr
n .2897285726921931 1.8061e-09 deg/d
Q 2.506260516142216 1.0416e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1379  
   data-arc span      9896 days (27.09 yr)  
   first obs. used      1992-04-06  
   last obs. used      2019-05-11  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .4875  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-May-30 02:55:59  

Additional Information
 Earth MOID = 1.01227 au 
 Jupiter MOID = 2.8346 au 
 T_jup = 3.603 
[ 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 14.8   n/a MPO365501  
diameter diameter 3.613 km 0.123 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.215   0.028 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

20846 Liyulin           Discovered 2000 Oct. 25 by the Lincoln Laboratory Near-Earth Asteroid Research Team at Socorro.
Li Yu-Lin (b. 1986) was awarded second place in the 2004 Intel International Science and Engineering Fair for his mathematics team project. He attends the Dominic High School, Kaoshung, Taiwan.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20041226/MPCPages.arcLast Updated: 2004-12-25

[ show close-approach data ]
Alternate Designations
 2000 US103 = 1992 GU7 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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