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109518 (2001 QC239)
Classification: Main-belt Asteroid          SPK-ID: 2109518
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 16 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1745239493920251 1.1715e-07  
a 2.557242828336943 2.1172e-08 au
q 2.110942710381147 3.114e-07 au
i 2.593988350702658 6.5714e-06 deg
node 216.1405624385943 0.00014673 deg
peri 131.7333808584387 0.00014781 deg
M 211.2295198065507 2.7455e-05 deg
tp 2459617.763568012578
(2022-Feb-07.26356801)
0.00012077 TDB
period 1493.675924118667
4.09
1.855e-05
5.079e-08
d
yr
n .2410161362227321 2.9932e-09 deg/d
Q 3.003542946292739 2.4867e-08 au
  Orbit Determination Parameters
   # obs. used (total)      399  
   data-arc span      8214 days (22.49 yr)  
   first obs. used      1997-11-01  
   last obs. used      2020-04-28  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .5471  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-20 19:05:28  

Additional Information
 Earth MOID = 1.10548 au 
 Jupiter MOID = 2.42489 au 
 T_jup = 3.414 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 16.1   n/a MPO412772  

109518 (2001 QC239)          Discovered 2001-Aug-24 by LINEAR at Socorro
Reference: 20051019/Numbers.arcLast Updated: 2005-10-26

[ show close-approach data ]
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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