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 ]  
442393 (2011 UT39)
Classification: Main-belt Asteroid          SPK-ID: 2442393
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 14 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1610356131955547 8.3559e-08  
a 2.620350643114736 3.6685e-08 au
q 2.198380870513388 2.2536e-07 au
i 13.48493597572974 8.7892e-06 deg
node 22.7256582116204 2.7614e-05 deg
peri 318.8161260838905 3.4447e-05 deg
M 310.3942247009447 2.0822e-05 deg
tp 2458813.984959552449
(2019-Nov-26.48495955)
9.1812e-05 TDB
period 1549.307212225858
4.24
3.2535e-05
8.908e-08
d
yr
n .2323619209664656 4.8796e-09 deg/d
Q 3.042320415716084 4.2592e-08 au
  Orbit Determination Parameters
   # obs. used (total)      115  
   data-arc span      8563 days (23.44 yr)  
   first obs. used      1994-10-09  
   last obs. used      2018-03-20  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .58369  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-14 15:24:48  

Additional Information
 Earth MOID = 1.2097 au 
 Jupiter MOID = 2.43797 au 
 T_jup = 3.348 
[ 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 17.0   n/a MPO440831  

442393 (2011 UT39)          Discovered 2011-Sep-20 by Spacewatch at Kitt Peak
Reference: Last Updated: 2015-09-02
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