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 ]  
173343 (1999 XU56)
Classification: Main-belt Asteroid          SPK-ID: 2173343
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 17 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1739743706627433 3.8003e-08  
a 2.453524866288748 1.2528e-08 au
q 2.026674421770772 9.609e-08 au
i 1.737325342295358 5.7311e-06 deg
node 216.7588911304792 0.00015356 deg
peri 208.3316964035738 0.00015497 deg
M 19.6823997499174 1.9031e-05 deg
tp 2458523.753307154504
(2019-Feb-09.25330715)
7.4219e-05 TDB
period 1403.731748944609
3.84
1.0751e-05
2.943e-08
d
yr
n .256459256029982 1.9643e-09 deg/d
Q 2.880375310806724 1.4707e-08 au
  Orbit Determination Parameters
   # obs. used (total)      557  
   data-arc span      9958 days (27.26 yr)  
   first obs. used      1991-10-06  
   last obs. used      2019-01-10  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .54487  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-13 09:15:33  

Additional Information
 Earth MOID = 1.0401 au 
 Jupiter MOID = 2.42445 au 
 T_jup = 3.473 
[ 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 16.4   n/a MPO454190  

173343 (1999 XU56)          Discovered 1999-Dec-07 by LINEAR at Socorro
Reference: 20080122/Numbers.arcLast Updated: 2008-01-28
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov 2019-Dec-16 11:31 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin