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JPL Small-Body Database Browser
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193889 (2001 QW208)
Classification: Main-belt Asteroid          SPK-ID: 2193889
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 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 5 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1399913101806406 7.3478e-08  
a 2.227810263673749 1.6242e-08 au
q 1.915936186028183 1.6658e-07 au
i 2.794380124118424 1.0963e-05 deg
node 350.8559700196698 0.00016711 deg
peri 336.4790649299701 0.0001717 deg
M 114.8130646078395 4.2695e-05 deg
tp 2458213.149129666681
(2018-Apr-04.64912967)
0.00014198 TDB
period 1214.550920631669
3.33
1.3282e-05
3.636e-08
d
yr
n .2964058516482533 3.2414e-09 deg/d
Q 2.539684341319316 1.8515e-08 au
  Orbit Determination Parameters
   # obs. used (total)      180  
   data-arc span      6270 days (17.17 yr)  
   first obs. used      2001-08-16  
   last obs. used      2018-10-16  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .67462  
   source      ORB  
   producer      Otto Matic  
   solution date      2018-Oct-31 03:38:49  

Additional Information
 Earth MOID = .903951 au 
 Jupiter MOID = 2.76514 au 
 T_jup = 3.630 
[ 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 17.2   n/a MPO254287  

193889 (2001 QW208)          Discovered 2001-Aug-23 by LONEOS at Anderson Mesa
Reference: 20081113/Numbers.arcLast Updated: 2008-11-17
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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