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 2457600.5 (2016-Jul-31.0) TDB
Reference: JPL 13 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1429850990196938 4.8676e-08  
a 1.926445569887058 8.9529e-09 au
q 1.650992559320707 9.3945e-08 au
i 26.55634748055309 1.1678e-05 deg
node 45.80245446711758 9.3309e-06 deg
peri 287.2689182890522 4.9953e-05 deg
M 70.78633182760015 5.1814e-05 deg
tp 2457408.464974216429
(2016-Jan-20.96497422)
0.00014031 JED
period 976.6378267835325
2.67
6.8082e-06
1.864e-08
d
yr
n .3686115672844939 2.5696e-09 deg/d
Q 2.20189858045341 1.0233e-08 au
  Orbit Determination Parameters
   # obs. used (total)      703  
   data-arc span      7640 days (20.92 yr)  
   first obs. used      1994-08-16  
   last obs. used      2015-07-17  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .49552  
   data source      ORB  
   producer      Otto Matic  
   solution date      2015-Sep-02 15:58:58  

Additional Information
 Earth MOID = .765442 au 
 Jupiter MOID = 3.16676 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
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 2016-May-02 10:42 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin