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 ]  
392669 (2011 UR305)
Classification: Main-belt Asteroid          SPK-ID: 2392669
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 13 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .07459441175279682 1.2103e-07  
a 3.125664597204081 7.9183e-08 au
q 2.8925074852391 3.8702e-07 au
i 10.59706018476254 1.4331e-05 deg
node 16.9808482485252 5.373e-05 deg
peri 7.630704915261208 9.5695e-05 deg
M 133.9657891820626 7.8836e-05 deg
tp 2457849.390260298666
(2017-Apr-05.89026030)
0.00044192 TDB
period 2018.42207584058
5.53
7.67e-05
2.1e-07
d
yr
n .178357145568811 6.7775e-09 deg/d
Q 3.358821709169062 8.509e-08 au
  Orbit Determination Parameters
   # obs. used (total)      92  
   data-arc span      5839 days (15.99 yr)  
   first obs. used      2003-04-08  
   last obs. used      2019-04-03  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .68545  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-14 15:14:04  

Additional Information
 Earth MOID = 1.89532 au 
 Jupiter MOID = 2.05401 au 
 T_jup = 3.184 
[ 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 16.1   n/a MPO434456  
diameter diameter 3.179 km 0.506 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.030   0.014 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

392669 (2011 UR305)          Discovered 2010-Apr-22 by WISE at WISE
Reference: Last Updated: 2014-04-17

Alternate Designations
 2011 UR305 = 2010 HM41 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin