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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 12 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1428421684520828 4.8786e-08  
a 1.926458210320247 8.9476e-09 AU
q 1.651278742125785 9.4174e-08 AU
i 26.55480024564971 1.1684e-05 deg
node 45.8082582797247 9.3367e-06 deg
peri 287.3124502843385 5.002e-05 deg
M 209.5686905935626 5.1622e-05 deg
tp 2457408.606536392043
(2016-Jan-21.10653639)
0.00014053 JED
period 976.6474391590208
2.67
6.8042e-06
1.863e-08
d
yr
n .368607939329664 2.568e-09 deg/d
Q 2.20163767851471 1.0226e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      695  
   data-arc span      7617 days (20.85 yr)  
   first obs. used      1994-08-16  
   last obs. used      2015-06-24  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .49682  
   data source      ORB  
   producer      Otto Matic  
   solution date      2015-Jul-06 13:22:58  

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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