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 ]  
390685 (2002 UR44)
Classification: Main-belt Asteroid          SPK-ID: 2390685
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 15 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2616083716007298 7.2534e-08  
a 2.684661816133845 2.399e-08 au
q 1.982331810116412 2.0247e-07 au
i 12.31764300644185 7.2915e-06 deg
node 211.07910333284 2.729e-05 deg
peri 141.659934295217 3.0307e-05 deg
M 292.22106903752 1.0471e-05 deg
tp 2458902.999749685725
(2020-Feb-23.49974969)
4.8488e-05 TDB
period 1606.692645346446
4.40
2.1536e-05
5.896e-08
d
yr
n .2240627671027736 3.0033e-09 deg/d
Q 3.386991822151278 3.0266e-08 au
  Orbit Determination Parameters
   # obs. used (total)      249  
   data-arc span      6620 days (18.12 yr)  
   first obs. used      2001-05-25  
   last obs. used      2019-07-10  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .541  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Sep-24 07:07:16  

Additional Information
 Earth MOID = .993473 au 
 Jupiter MOID = 2.15221 au 
 T_jup = 3.293 
[ 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 16.7   n/a MPO476839  

390685 (2002 UR44)          Discovered 2002-Oct-04 by LINEAR at Socorro
Reference: Last Updated: 2014-04-17

Alternate Designations
 2002 UR44 = 2011 WB114 = 2011 WG100 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov 2020-Jan-21 06:02 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin