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JPL Small-Body Database Browser
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109387 (2001 QL168)
Classification: Main-belt Asteroid          SPK-ID: 2109387
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 15 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1550116167397263 6.5199e-08  
a 2.588749300447801 1.4907e-08 au
q 2.187463086051552 1.6441e-07 au
i 11.69301384131379 6.1341e-06 deg
node 164.0982220079864 2.9228e-05 deg
peri 234.5802570482906 3.3481e-05 deg
M 65.55074385364874 1.8793e-05 deg
tp 2458323.481647399707
(2018-Jul-23.98164740)
7.8393e-05 TDB
period 1521.364992573679
4.17
1.3141e-05
3.598e-08
d
yr
n .236629606805262 2.0439e-09 deg/d
Q 2.99003551484405 1.7218e-08 au
  Orbit Determination Parameters
   # obs. used (total)      447  
   data-arc span      6379 days (17.46 yr)  
   first obs. used      2001-08-25  
   last obs. used      2019-02-11  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .61821  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-13 09:47:58  

Additional Information
 Earth MOID = 1.21482 au 
 Jupiter MOID = 2.51242 au 
 T_jup = 3.375 
[ 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 15.6   n/a MPO453553  

109387 (2001 QL168)          Discovered 2001-Aug-25 by NEAT at Palomar
Reference: 20051019/Numbers.arcLast Updated: 2005-10-26
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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