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 ]  
390031 (2012 UL41)
Classification: Main-belt Asteroid          SPK-ID: 2390031
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ 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 .04893206281601237 9.0241e-08  
a 2.705397705832883 5.6401e-08 au
q 2.573017015348773 2.753e-07 au
i 4.671608617335095 9.6884e-06 deg
node 191.9873630416993 7.0212e-05 deg
peri 206.1524541903179 0.00013256 deg
M 159.6226784047866 0.00011945 deg
tp 2457879.828751490005
(2017-May-06.32875149)
0.00052174 TDB
period 1625.343291168695
4.45
5.0827e-05
1.392e-07
d
yr
n .2214916700712154 6.9264e-09 deg/d
Q 2.837778396316994 5.9161e-08 au
  Orbit Determination Parameters
   # obs. used (total)      127  
   data-arc span      5635 days (15.43 yr)  
   first obs. used      2003-11-20  
   last obs. used      2019-04-25  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .45415  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-14 14:50:06  

Additional Information
 Earth MOID = 1.57973 au 
 Jupiter MOID = 2.36659 au 
 T_jup = 3.359 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 16.8   n/a MPO472008  

390031 (2012 UL41)          Discovered 2012-Sep-15 by Spacewatch at Kitt Peak
Reference: Last Updated: 2014-03-21

[ show close-approach data ]
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov 2020-Jan-18 18:40 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin