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109193 (2001 QL74)
Classification: Main-belt Asteroid          SPK-ID: 2109193
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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For accurate long-term ephemerides, please instead use our Horizons system.This orbit viewer was implemented using two-body methods, and hence should not be used for determining accurate long-term trajectories (over several years or decades) or planetary encounter circumstances.


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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 18 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1459734263391447 8.8272e-08  
a 2.609565202457691 1.5711e-08 au
q 2.228638028599538 2.2427e-07 au
i 11.08789868420331 7.5887e-06 deg
node 7.018240436808556 2.2018e-05 deg
peri 349.1559240726147 2.868e-05 deg
M 178.2436089891816 2.4482e-05 deg
tp 2458238.136453098006
(2018-Apr-29.63645310)
9.9516e-05 TDB
period 1539.751570567535
4.22
1.3905e-05
3.807e-08
d
yr
n .2338039505082681 2.1114e-09 deg/d
Q 2.990492376315845 1.8004e-08 au
  Orbit Determination Parameters
   # obs. used (total)      935  
   data-arc span      7657 days (20.96 yr)  
   first obs. used      1999-02-18  
   last obs. used      2020-02-05  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .52844  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-24 03:21:07  

Additional Information
 Earth MOID = 1.22588 au 
 Jupiter MOID = 2.45737 au 
 T_jup = 3.369 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456022.5 (2012-Apr-05.0) TDB
Reference: JPL 18 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1452396198369176 8.7672e-08  
q 2.231316187060069 2.2258e-07 au
tp 2456692.178516053164
(2014-Feb-03.67851605)
9.0475e-05 TDB
node 7.108788946523369 2.2051e-05 deg
peri 348.0768644912399 2.8857e-05 deg
i 11.08030184682256 7.5804e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      935  
   data-arc span      7657 days (20.96 yr)  
   first obs. used      1999-02-18  
   last obs. used      2020-02-05  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .52844  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-24 03:21:07  

Additional Information
 Jupiter MOID = 2.45737 au 
 T_jup = 3.369 
Orbit Covariance (6×6)
  e q tp node peri i
e 7.686317874038056E-15 -1.948605030915961E-14 4.273169846922836E-12 2.582322726472055E-14 6.74988766716359E-13 -1.416085631314797E-14
q -1.948605030915961E-14 4.954284747957153E-14 -1.030499316003459E-11 -6.331199497993547E-14 -1.611637982368328E-12 3.552204244219141E-14
tp 4.273169846922836E-12 -1.030499316003459E-11 8.185728407678206E-9 2.491982885690802E-11 1.67023265005664E-9 -1.600192265393934E-11
node 2.582322726472055E-14 -6.331199497993547E-14 2.491982885690802E-11 4.862285494900258E-10 -4.721831684464517E-10 4.833281326047124E-12
peri 6.74988766716359E-13 -1.611637982368328E-12 1.67023265005664E-9 -4.721831684464517E-10 8.327178055724303E-10 -8.067800411811809E-12
i -1.416085631314797E-14 3.552204244219141E-14 -1.600192265393934E-11 4.833281326047124E-12 -8.067800411811809E-12 5.74631174779339E-11

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 14.7   n/a MPO469115  

109193 (2001 QL74)          Discovered 2001-Aug-16 by LINEAR at Socorro
Reference: 20051019/Numbers.arcLast Updated: 2005-10-26

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Alternate Designations
 2001 QL74 = 1999 FD43 = 1999 FH63 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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