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 ]  
392166 (2009 JS4)
Classification: Mars-crossing Asteroid          SPK-ID: 2392166
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 11 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1144396054410608 3.4241e-08  
a 1.85367587038449 1.0046e-08 au
q 1.641541935162074 6.614e-08 au
i 21.9799235577612 1.5072e-05 deg
node 193.7545908805768 1.0993e-05 deg
peri 91.69046906486139 0.00010425 deg
M 85.98083972940046 9.8357e-05 deg
tp 2458780.334987905275
(2019-Oct-23.83498791)
0.00025112 TDB
period 921.8263580996281
2.52
7.4939e-06
2.052e-08
d
yr
n .3905290804898989 3.1748e-09 deg/d
Q 2.065809805606906 1.1196e-08 au
  Orbit Determination Parameters
   # obs. used (total)      144  
   data-arc span      5440 days (14.89 yr)  
   first obs. used      2004-06-14  
   last obs. used      2019-05-07  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .64788  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-26 04:43:02  

Additional Information
 Earth MOID = .759182 au 
 Jupiter MOID = 3.0866 au 
 T_jup = 3.907 
[ 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 18.5   n/a MPO427953  

392166 (2009 JS4)          Discovered 2009-May-13 by Spacewatch at Kitt Peak
Reference: Last Updated: 2014-04-17
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov 2020-May-28 05:06 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin