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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 2459000.5 (2020-May-31.0) TDB
Reference: JPL 17 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1790892186559481 6.7089e-08  
a 2.298857761459855 1.4958e-08 au
q 1.887157121158848 1.4868e-07 au
i 3.504558229111602 5.8338e-06 deg
node 31.79035937102659 9.0495e-05 deg
peri 347.4778580901337 9.1747e-05 deg
M 106.1426694252438 1.5296e-05 deg
tp 2458625.134734249988
(2019-May-21.63473425)
5.3384e-05 TDB
period 1273.111901196127
3.49
1.2426e-05
3.402e-08
d
yr
n .2827716869677906 2.7599e-09 deg/d
Q 2.710558401760863 1.7637e-08 au
  Orbit Determination Parameters
   # obs. used (total)      302  
   data-arc span      6737 days (18.44 yr)  
   first obs. used      2001-08-13  
   last obs. used      2020-01-23  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .55926  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-24 22:10:52  

Additional Information
 Earth MOID = .889662 au 
 Jupiter MOID = 2.74935 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 17.0   n/a MPO503020  

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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