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 ]  
379154 (2009 QU4)
Classification: Main-belt Asteroid          SPK-ID: 2379154
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 10 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2290031288603626 9.7424e-08  
a 2.34567996431737 3.8722e-08 au
q 1.808511913183629 2.1972e-07 au
i .470054110186453 1.4407e-05 deg
node 33.80353420377637 0.0011896 deg
peri 279.726127179605 0.0011903 deg
M 259.4244741845981 5.3817e-05 deg
tp 2458967.099083901593
(2020-Apr-27.59908390)
0.00020383 TDB
period 1312.204625674084
3.59
3.2492e-05
8.896e-08
d
yr
n .2743474553864393 6.7932e-09 deg/d
Q 2.882848015451112 4.7589e-08 au
  Orbit Determination Parameters
   # obs. used (total)      85  
   data-arc span      6027 days (16.50 yr)  
   first obs. used      2002-10-02  
   last obs. used      2019-04-03  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .61807  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-14 12:23:59  

Additional Information
 Earth MOID = .793773 au 
 Jupiter MOID = 2.40377 au 
 T_jup = 3.525 
[ 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 17.9   n/a E2013V08  

379154 (2009 QU4)          Discovered 2009-Aug-16 by OAM at La Sagra
Reference: Last Updated: 2013-11-20

[ show close-approach data ]
Alternate Designations
 2009 QU4 = 2005 JC39 
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-13 21:33 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin