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109390 (2001 QS169)
Classification: Main-belt Asteroid          SPK-ID: 2109390
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 18 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2205740096561529 4.2468e-08  
a 2.574841236688436 1.2571e-08 au
q 2.00689818088406 1.0464e-07 au
i 3.420144364787959 4.7005e-06 deg
node 271.5247853232557 0.00012364 deg
peri 174.2684808520844 0.00012522 deg
M 149.9463132723905 2.0737e-05 deg
tp 2458371.924568614776
(2018-Sep-10.42456861)
8.4808e-05 TDB
period 1509.121167171415
4.13
1.1052e-05
3.026e-08
d
yr
n .2385494338236322 1.747e-09 deg/d
Q 3.142784292492812 1.5344e-08 au
  Orbit Determination Parameters
   # obs. used (total)      680  
   data-arc span      7821 days (21.41 yr)  
   first obs. used      1997-11-29  
   last obs. used      2019-04-29  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .59593  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-13 10:00:07  

Additional Information
 Earth MOID = 1.0232 au 
 Jupiter MOID = 2.08868 au 
 T_jup = 3.391 
[ 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 15.7   n/a MPO469118  

109390 (2001 QS169)          Discovered 2001-Aug-22 by LINEAR at Socorro
Reference: 20051019/Numbers.arcLast Updated: 2005-10-26

[ show close-approach data ]
Alternate Designations
 2001 QS169 = 1997 WA39 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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