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 ]  
382417 (1998 OF9)
Classification: Main-belt Asteroid          SPK-ID: 2382417
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 13 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2239300019911528 4.4784e-08  
a 2.329539112570811 1.2051e-08 au
q 1.807885414454361 1.0826e-07 au
i 1.341216499351349 6.381e-06 deg
node 238.8397148400219 0.00021139 deg
peri 63.2001871724287 0.00021222 deg
M 309.3049913156267 1.5929e-05 deg
tp 2458783.379968293477
(2019-Oct-26.87996829)
5.7578e-05 TDB
period 1298.683840761348
3.56
1.0078e-05
2.759e-08
d
yr
n .2772037263426266 2.1511e-09 deg/d
Q 2.851192810687261 1.475e-08 au
  Orbit Determination Parameters
   # obs. used (total)      224  
   data-arc span      10181 days (27.87 yr)  
   first obs. used      1991-09-13  
   last obs. used      2019-07-29  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .60415  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Sep-24 06:59:34  

Additional Information
 Earth MOID = .792186 au 
 Jupiter MOID = 2.38401 au 
 T_jup = 3.538 
[ 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 17.1   n/a MPO434369  

382417 (1998 OF9)          Discovered 1998-Jul-26 by Elst, E. W. at La Silla
Reference: Last Updated: 2014-01-21

Alternate Designations
 1998 OF9 = 2009 TR7 
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