Skip Page Navigation
NASA JPL Caltech
NASA Logo - Jet Propulsion Laboratory + View the NASA Portal
+ Near-Earth Object (NEO) Program
Search JPL
JPL Home Earth Solar System Stars & Galaxies Technology
JPL Solar System Dynamics
BODIES ORBITS EPHEMERIDES TOOLS PHYSICAL DATA DISCOVERY FAQ SITE MAP
JPL Small-Body Database Browser
Search: [ help ]  
85640 (1998 OX4)
Classification: Apollo [NEO, PHA]          SPK-ID: 2085640
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2456800.5 (2014-May-23.0) TDB
Reference: JPL 61 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .4857566679997133 1.347e-07  
a 1.580626585378762 5.7735e-09 AU
q .81282668191341 2.1342e-07 AU
i 4.513636325000653 1.353e-05 deg
node 299.7155554732146 0.00010755 deg
peri 117.1128483281057 0.00010594 deg
M 290.1015882840529 1.1738e-05 deg
tp 2456941.431202322620
(2014-Oct-10.93120232)
2.4346e-05 JED
period 725.842427469181
1.99
3.9769e-06
1.089e-08
d
yr
n .495975416117826 2.7175e-09 deg/d
Q 2.348426488844113 8.5781e-09 AU
  Orbit Determination Parameters
   # obs. used (total)      241  
   data-arc span      3656 days (10.01 yr)  
   first obs. used      1998-07-26  
   last obs. used      2008-07-29  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .62618  
   data source      ORB  
   producer      Otto Matic  
   solution date      2014-Jun-10 16:36:47  

Additional Information
 Earth MOID = .00107573 AU 
 T_jup = 4.252 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 21.1 mag n/a MPO267962  

85640 (1998 OX4)          Discovered 1998-Jul-26 by Spacewatch at Kitt Peak (691)
Reference: 20040830/Numbers.arcLast Updated: 2004-09-06

[ show close-approach data ]
Alternate Designations
 1998 OX4 = 2002 PJ34 
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov 2014-Aug-02 02:48 UT
(server date/time)  
NASA Home Page
Site Manager:   Donald K. Yeomans
Webmaster  Alan B. Chamberlin