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 ]  
52439 (1994 QL)
Classification: Mars-crossing Asteroid          SPK-ID: 2052439
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2457000.5 (2014-Dec-09.0) TDB
Reference: JPL 8 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1428422023128086 6.6252e-08  
a 1.926458216148038 1.2013e-08 AU
q 1.651278681889847 1.2327e-07 AU
i 26.55479923043491 1.2645e-05 deg
node 45.8082540748451 1.1451e-05 deg
peri 287.3124550481863 5.1484e-05 deg
M 209.568683762357 5.3311e-05 deg
tp 2457408.606556776350
(2016-Jan-21.10655678)
0.00014558 JED
period 976.647443590752
2.67
9.1352e-06
2.501e-08
d
yr
n .3686079376570324 3.4478e-09 deg/d
Q 2.201637750406229 1.3729e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      578  
   data-arc span      7119 days (19.49 yr)  
   first obs. used      1994-08-16  
   last obs. used      2014-02-11  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .51688  
   data source      ORB  
   producer      Otto Matic  
   solution date      2014-Jun-10 08:20:33  

Additional Information
 Earth MOID = .766623 AU 
 T_jup = 3.778 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 14.8 mag n/a MPO280042  

52439 (1994 QL)          Discovered 1994-Aug-16 by McNaught, R. H. at Siding Spring (413)
Reference: 20030216/Numbers.arcLast Updated: 2004-04-19

Alternate Designations
 1994 QL = 1999 JW4 
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov 2014-Oct-21 15:10 UT
(server date/time)  
NASA Home Page
Site Manager:   Donald K. Yeomans
Webmaster  Alan B. Chamberlin