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JPL Small-Body Database Browser
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173710 (2001 QU121)
Classification: Main-belt Asteroid          SPK-ID: 2173710
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ 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 .10856108681923 7.4955e-08  
a 2.774077716914439 2.7416e-08 au
q 2.472920825045199 2.0979e-07 au
i 6.361746927655667 8.7628e-06 deg
node 350.8617291472546 4.8575e-05 deg
peri 17.06463984889204 5.7462e-05 deg
M 265.5048095309314 2.9847e-05 deg
tp 2459043.479436762707
(2020-Jul-12.97943676)
0.00014213 TDB
period 1687.626602401263
4.62
2.5018e-05
6.85e-08
d
yr
n .2133173294896923 3.1624e-09 deg/d
Q 3.075234608783679 3.0393e-08 au
  Orbit Determination Parameters
   # obs. used (total)      310  
   data-arc span      6100 days (16.70 yr)  
   first obs. used      2001-08-10  
   last obs. used      2018-04-23  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .56229  
   source      ORB  
   producer      Otto Matic  
   solution date      2018-May-07 05:53:12  

Additional Information
 Earth MOID = 1.47134 au 
 Jupiter MOID = 2.38045 au 
 T_jup = 3.318 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 15.9   n/a MPO436862  

173710 (2001 QU121)          Discovered 2001-Aug-19 by LINEAR at Socorro
Reference: 20080122/Numbers.arcLast Updated: 2008-01-28

[ show close-approach data ]
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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