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
IMPORTANT: The SSD Announcement email list is now available. Major changes are coming in the near future, including possible hostname and/or URL changes. To be notified of such changes, subscribe to this email list.

Please visit this page for more details.


JPL Small-Body Database Browser
Search: [ help ]  
117339 (2004 XO20)
Classification: Main-belt Asteroid          SPK-ID: 2117339
[ 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 24 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .07105671122702521 4.0257e-08  
a 3.199523604959095 3.3985e-08 au
q 2.972175980097466 1.3536e-07 au
i 14.46268333438267 4.6761e-06 deg
node 78.75350844336792 2.1195e-05 deg
peri 30.42786061242429 4.5372e-05 deg
M 160.1664686670898 3.9273e-05 deg
tp 2457670.473112489234
(2016-Oct-08.97311249)		 0.0002285 TDB
period 2090.385598747178
5.72		 3.3306e-05
9.119e-08		 d
yr
n .1722170303008963 2.7439e-09 deg/d
Q 3.426871229820724 3.64e-08 au
   Orbit Determination Parameters
   # obs. used (total)      862  
   data-arc span      7205 days (19.73 yr)  
   first obs. used      1998-10-19  
   last obs. used      2018-07-11  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .54345  
   source      ORB  
   producer      Otto Matic  
   solution date      2018-Oct-04 04:36:08  

Additional Information
 Earth MOID = 1.99773 au 
 Jupiter MOID = 1.81793 au 
 T_jup = 3.141 
[ 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 14.0   n/a MPO449686  
diameter diameter 9.021 km 0.276 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.060   0.011 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

117339 (2004 XO20)          Discovered 2004-Dec-08 by LINEAR at Socorro
Reference: 20051019/Numbers.arcLast Updated: 2005-10-26

[ show close-approach data ]
Alternate Designations
 2004 XO20 = 2000 EW121 
[ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov 2019-Dec-10 16:39 UT
(server date/time)   		NASA Home Page
Site Manager:   Ryan S. Park
Webmaster:   Alan B. Chamberlin