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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 2456800.5 (2014-May-23.0) TDB
Reference: JPL 8 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1426399912305964 6.6206e-08  
a 1.926762281832495 1.1998e-08 AU
q 1.651928926848464 1.2318e-07 AU
i 26.5537160870198 1.2645e-05 deg
node 45.82722859678668 1.1449e-05 deg
peri 287.276537976033 5.1578e-05 deg
M 135.8835292026815 5.325e-05 deg
tp 2456431.772993102814
(2013-May-19.27299310)
0.00014375 JED
period 976.8786788352534
2.67
9.1249e-06
2.498e-08
d
yr
n .3685206851164294 3.4423e-09 deg/d
Q 2.201595636816526 1.371e-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 = .766249 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 ]
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