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 ]  
312898 (2011 UT285)
Classification: Main-belt Asteroid          SPK-ID: 2312898
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 7 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1213695045956423 8.3628e-08  
a 2.73155430033344 3.7914e-08 au
q 2.400026908125874 2.2498e-07 au
i 3.833897901628157 8.5887e-06 deg
node 87.45601085243294 0.00013805 deg
peri 59.94353408385003 0.0001433 deg
M 132.1320228578761 4.1007e-05 deg
tp 2457995.272340798075
(2017-Aug-29.77234080)
0.00018096 TDB
period 1648.971631555593
4.51
3.4332e-05
9.4e-08
d
yr
n .21831788559054 4.5454e-09 deg/d
Q 3.063081692541006 4.2516e-08 au
  Orbit Determination Parameters
   # obs. used (total)      122  
   data-arc span      5639 days (15.44 yr)  
   first obs. used      2004-02-16  
   last obs. used      2019-07-26  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .53937  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Sep-24 06:02:32  

Additional Information
 Earth MOID = 1.41508 au 
 Jupiter MOID = 1.9463 au 
 T_jup = 3.340 
[ 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 16.9   n/a MPO450245  

312898 (2011 UT285)          Discovered 2004-Feb-16 by Spacewatch at Kitt Peak
Reference: 20120109/Numbers.arcLast Updated: 2012-01-11

[ show close-approach data ]
Alternate Designations
 2011 UT285 = 2009 HD57 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov 2019-Dec-08 16:14 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin