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 ]  
146731 (2001 XE51)
Classification: Main-belt Asteroid          SPK-ID: 2146731
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 15 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .08105694380846629 4.8003e-08  
a 2.765388657964012 1.823e-08 au
q 2.541234704906853 1.3606e-07 au
i 1.677036198017145 3.8458e-06 deg
node 76.51884837310416 0.00019312 deg
peri 305.463317604081 0.00019573 deg
M 317.1730633036542 2.9071e-05 deg
tp 2458800.323795378152
(2019-Nov-12.82379538)
0.00013513 TDB
period 1679.703753882368
4.60
1.661e-05
4.548e-08
d
yr
n .2143235074446415 2.1193e-09 deg/d
Q 2.989542611021171 1.9708e-08 au
  Orbit Determination Parameters
   # obs. used (total)      358  
   data-arc span      6559 days (17.96 yr)  
   first obs. used      2001-11-17  
   last obs. used      2019-11-02  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .5659  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Dec-04 13:01:06  

Additional Information
 Earth MOID = 1.54373 au 
 Jupiter MOID = 2.39963 au 
 T_jup = 3.334 
[ 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 16.3   n/a MPO453933  
diameter diameter 3.094 km 0.285 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.056   0.014 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

146731 (2001 XE51)          Discovered 2001-Dec-10 by LINEAR at Socorro
Reference: 20070106/Numbers.arcLast Updated: 2007-01-09

[ show close-approach data ]
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-12 01:38 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin