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 ]  
312158 (2007 UR31)
Classification: Main-belt Asteroid          SPK-ID: 2312158
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 11 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1553681772869311 5.139e-08  
a 2.344328720493196 1.7989e-08 au
q 1.980094640228764 1.211e-07 au
i 3.374570146023154 5.8667e-06 deg
node 57.34424568438748 0.00011687 deg
peri 15.94960587137082 0.0001206 deg
M 40.0065190003025 2.6136e-05 deg
tp 2458454.801710546936
(2018-Dec-02.30171055)
9.536e-05 TDB
period 1311.07093328231
3.59
1.509e-05
4.131e-08
d
yr
n .2745846855888476 3.1604e-09 deg/d
Q 2.708562800757627 2.0783e-08 au
  Orbit Determination Parameters
   # obs. used (total)      150  
   data-arc span      6608 days (18.09 yr)  
   first obs. used      2000-12-29  
   last obs. used      2019-02-01  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .6049  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-14 10:19:14  

Additional Information
 Earth MOID = .994937 au 
 Jupiter MOID = 2.54993 au 
 T_jup = 3.543 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456890.5 (2014-Aug-21.0) TDB
Reference: JPL 11 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1544434025319437 5.1505e-08  
q 1.98257689567258 1.2132e-07 au
tp 2457144.091483044381
(2015-May-01.59148304)
9.9228e-05 TDB
node 57.37956514619884 0.00011693 deg
peri 16.0738577997552 0.00012071 deg
i 3.373780625040195 5.8634e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      150  
   data-arc span      6608 days (18.09 yr)  
   first obs. used      2000-12-29  
   last obs. used      2019-02-01  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .6049  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-14 10:19:14  

Additional Information
 Jupiter MOID = 2.54993 au 
 T_jup = 3.543 
Orbit Covariance (6×6)
  e q tp node peri i
e 2.652785395603116E-15 -6.199206740332196E-15 4.811876061223384E-13 5.307894352033685E-14 2.017298585811047E-13 -2.514928509403343E-15
q -6.199206740332196E-15 1.471866242291466E-14 -1.541020822043148E-12 -1.341290111658693E-13 -6.022937042011001E-13 5.943266413646871E-15
tp 4.811876061223384E-13 -1.541020822043148E-12 9.846243190573259E-9 1.207179517110885E-10 3.026586546843055E-9 7.538681432772211E-12
node 5.307894352033685E-14 -1.341290111658693E-13 1.207179517110885E-10 1.367152640560854E-8 -1.360641896158295E-8 -1.569050012837925E-10
peri 2.017298585811047E-13 -6.022937042011001E-13 3.026586546843055E-9 -1.360641896158295E-8 1.45711201750818E-8 1.589528557068492E-10
i -2.514928509403343E-15 5.943266413646871E-15 7.538681432772211E-12 -1.569050012837925E-10 1.589528557068492E-10 3.43794367269644E-11

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 17.7   n/a MPO471269  

312158 (2007 UR31)          Discovered 2007-Oct-19 by Mt. Lemmon Survey at Mount Lemmon
Reference: 20120109/Numbers.arcLast Updated: 2012-01-11
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov 2020-Jan-29 18:59 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin