Skip Page Navigation
NASA JPL Caltech
NASA Logo - Jet Propulsion Laboratory + View the NASA Portal
+ Center for Near-Earth Object Studies
JPL Home Earth Solar System Stars & Galaxies Technology
JPL Solar System Dynamics
BODIES ORBITS EPHEMERIDES TOOLS PHYSICAL DATA DISCOVERY FAQ SITE MAP
JPL Small-Body Database Browser
Search: [ help ]  
20846 Liyulin (2000 US103)
Classification: Main-belt Asteroid          SPK-ID: 2020846
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459396.5 (2021-Jul-01.0) TDB
Reference: JPL 35 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1073692885194656 4.2787e-08  
a 2.26222479458455 6.2983e-09 au
q 2.019331327918913 9.7879e-08 au
i 6.32217571884425 4.2126e-06 deg
node 14.67308714167989 2.5043e-05 deg
peri 324.4462998781269 2.9049e-05 deg
M 93.03230422254541 1.3318e-05 deg
tp 2459075.331206035285
(2020-Aug-13.83120604)
4.6405e-05 TDB
period 1242.80234477174
3.40
5.1902e-06
1.421e-08
d
yr
n .2896679439932337 1.2097e-09 deg/d
Q 2.505118261250188 6.9745e-09 au
  Orbit Determination Parameters
   # obs. used (total)      1957  
   data-arc span      10557 days (28.90 yr)  
   first obs. used      1992-04-06  
   last obs. used      2021-03-02  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .46149  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Jul-08 18:27:53  

Additional Information
 Earth MOID = 1.01413 au 
 Jupiter MOID = 2.83322 au 
 T_jup = 3.603 
[ 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 14.86   n/a E2021B10  
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

Alternate Designations
 2000 US103 = 1992 GU7 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov 2021-Aug-04 04:15 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin