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JPL Small-Body Database Browser
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193875 (2001 QW161)
Classification: Main-belt Asteroid          SPK-ID: 2193875
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 13 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1788767900565695 9.5786e-08  
a 2.298649051380989 1.62e-08 au
q 1.887474087603379 2.1912e-07 au
i 3.504832037940769 8.5534e-06 deg
node 31.79840892548583 0.00011729 deg
peri 347.4872352829646 0.00011872 deg
M 353.0313164821553 1.9166e-05 deg
tp 2458625.140849296355
(2019-May-21.64084930)
6.7849e-05 TDB
period 1272.938529059682
3.49
1.3457e-05
3.684e-08
d
yr
n .2828102000070117 2.9896e-09 deg/d
Q 2.709824015158598 1.9097e-08 au
  Orbit Determination Parameters
   # obs. used (total)      225  
   data-arc span      5705 days (15.62 yr)  
   first obs. used      2001-08-13  
   last obs. used      2017-03-27  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .61595  
   source      ORB  
   producer      Otto Matic  
   solution date      2017-Apr-11 05:46:02  

Additional Information
 Earth MOID = .889211 au 
 Jupiter MOID = 2.74714 au 
 T_jup = 3.569 
[ 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 MPO401554  

193875 (2001 QW161)          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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