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109109 (2001 QU38)
Classification: Main-belt Asteroid          SPK-ID: 2109109
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

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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 22 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1103457748709314 4.061e-08  
a 2.720012806753018 1.5716e-08 au
q 2.419870885932999 1.1517e-07 au
i 10.0007460007237 4.6423e-06 deg
node 136.0647683321311 2.1975e-05 deg
peri 233.1405931002897 2.9891e-05 deg
M 16.06837156500123 2.0128e-05 deg
tp 2458927.365176912821
(2020-Mar-18.86517691)
9.1567e-05 TDB
period 1638.531708386126
4.49
1.4201e-05
3.888e-08
d
yr
n .2197089004487941 1.9042e-09 deg/d
Q 3.020154727573036 1.745e-08 au
  Orbit Determination Parameters
   # obs. used (total)      643  
   data-arc span      8538 days (23.38 yr)  
   first obs. used      1996-06-17  
   last obs. used      2019-11-02  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .55741  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Dec-04 10:13:25  

Additional Information
 Earth MOID = 1.43233 au 
 Jupiter MOID = 2.44971 au 
 T_jup = 3.328 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 15.4   n/a MPO432615  

109109 (2001 QU38)          Discovered 2001-Aug-16 by LINEAR at Socorro
Reference: 20051019/Numbers.arcLast Updated: 2005-10-26
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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