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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 10 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1428421849660579 5.7785e-08  
a 1.926458212894276 1.0344e-08 AU
q 1.651278712518651 1.0917e-07 AU
i 26.55479800665794 1.1907e-05 deg
node 45.80825277280108 1.0746e-05 deg
peri 287.3124581921536 5.0657e-05 deg
M 209.568684888655 5.2803e-05 deg
tp 2457408.606552686876
(2016-Jan-21.10655269)
0.00014404 JED
period 976.6474411164357
2.67
7.8661e-06
2.154e-08
d
yr
n .3686079385908931 2.9689e-09 deg/d
Q 2.201637713269902 1.1822e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      605  
   data-arc span      7530 days (20.62 yr)  
   first obs. used      1994-08-16  
   last obs. used      2015-03-29  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .50752  
   data source      ORB  
   producer      Otto Matic  
   solution date      2015-Apr-07 18:22:47  

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
Reference: 20030216/Numbers.arcLast Updated: 2004-04-19

Alternate Designations
 1994 QL = 1999 JW4 
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ]
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