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 ]  
393907 (2005 UR2)
Classification: Mars-crossing Asteroid          SPK-ID: 2393907
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 7 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .3029111919817208 5.6411e-08  
a 2.174708423207285 1.5793e-08 au
q 1.515964902520877 1.2347e-07 au
i 4.866911519451958 1.2134e-05 deg
node 232.9830819235749 7.8716e-05 deg
peri 76.30676933083819 8.2375e-05 deg
M 256.3393464839878 2.792e-05 deg
tp 2459337.796180628941
(2021-May-03.29618063)
9.362e-05 TDB
period 1171.385872149283
3.21
1.276e-05
3.493e-08
d
yr
n .307328275472082 3.3477e-09 deg/d
Q 2.833451943893692 2.0577e-08 au
  Orbit Determination Parameters
   # obs. used (total)      112  
   data-arc span      7545 days (20.66 yr)  
   first obs. used      1998-04-19  
   last obs. used      2018-12-15  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .53263  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-14 02:52:22  

Additional Information
 Earth MOID = .511556 au 
 Jupiter MOID = 2.46788 au 
 T_jup = 3.620 
[ 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 18.2   n/a MPO265657  

393907 (2005 UR2)          Discovered 2005-Oct-24 by Spacewatch at Kitt Peak
Reference: Last Updated: 2014-05-15

Alternate Designations
 2005 UR2 = 1998 HF8 = 2008 SN148 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov 2020-Apr-07 11:40 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin