Skip Page Navigation
NASA JPL Caltech
NASA Logo - Jet Propulsion Laboratory + View the NASA Portal
+ Near-Earth Object (NEO) Program
Search JPL
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 ]  
23066 Yihedong (1999 XN54)
Classification: Main-belt Asteroid          SPK-ID: 2023066
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2457600.5 (2016-Jul-31.0) TDB
Reference: JPL 16 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .0604068020200124 5.6151e-08  
a 2.82840442898936 2.4738e-08 au
q 2.657549562614874 1.6005e-07 au
i 2.316730561545247 7.2404e-06 deg
node 162.0880960639664 0.00014089 deg
peri 147.2823222242954 0.00015488 deg
M 291.5470035234226 6.6321e-05 deg
tp 2457930.870037655519
(2017-Jun-26.37003766)
0.00032103 JED
period 1737.443496672673
4.76
2.2794e-05
6.241e-08
d
yr
n .2072009827596842 2.7184e-09 deg/d
Q 2.999259295363846 2.6232e-08 au
  Orbit Determination Parameters
   # obs. used (total)      638  
   data-arc span      8789 days (24.06 yr)  
   first obs. used      1992-03-25  
   last obs. used      2016-04-17  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .5612  
   data source      ORB  
   producer      Otto Matic  
   solution date      2016-Apr-25 13:40:21  

Additional Information
 Earth MOID = 1.64288 au 
 Jupiter MOID = 2.14584 au 
 T_jup = 3.310 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 15.1 mag n/a MPO337453  

23066 Yihedong           Discovered 1999 Dec. 7 by the Lincoln Laboratory Near-Earth Asteroid Research Team in Socorro.
Yihe Dong (b. 1990) was awarded first place and Best in Category in the 2007 Intel International Science and Engineering Fair for her animal sciences project. She attends the Cedar Shoals High School, Athens, Georgia, U.S.A.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20070828/MPCPages.arcLast Updated: 2007-08-30

Alternate Designations
 1999 XN54 = 1998 OP9 
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov 2016-May-03 12:30 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin