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JPL Small-Body Database Browser
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193831 (2001 QU42)
Classification: Main-belt Asteroid          SPK-ID: 2193831
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 14 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1538735737148365 5.0914e-08  
a 2.228628320816023 1.1823e-08 au
q 1.885701316609967 1.1546e-07 au
i 5.237808479171185 5.6971e-06 deg
node 334.8249425254017 4.5771e-05 deg
peri 251.0975650061009 4.9133e-05 deg
M 190.4986438958708 1.8612e-05 deg
tp 2459172.670642627797
(2020-Nov-19.17064263)
6.3862e-05 TDB
period 1215.219960951032
3.33
9.6701e-06
2.648e-08
d
yr
n .2962426651700682 2.3573e-09 deg/d
Q 2.57155532502208 1.3642e-08 au
  Orbit Determination Parameters
   # obs. used (total)      568  
   data-arc span      6959 days (19.05 yr)  
   first obs. used      2000-01-04  
   last obs. used      2019-01-23  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .59806  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-13 14:55:45  

Additional Information
 Earth MOID = .88464 au 
 Jupiter MOID = 2.43474 au 
 T_jup = 3.623 
[ 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 16.4   n/a MPO459867  

193831 (2001 QU42)          Discovered 2001-Aug-16 by LINEAR at Socorro
Reference: 20081113/Numbers.arcLast Updated: 2008-11-17

Alternate Designations
 2001 QU42 = 2005 US352 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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