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171868 (2001 QR110)
Classification: Main-belt Asteroid          SPK-ID: 2171868
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

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For accurate long-term ephemerides, please instead use our Horizons system.This orbit viewer was implemented using two-body methods, and hence should not be used for determining accurate long-term trajectories (over several years or decades) or planetary encounter circumstances.


Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 16 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .0996548037118323 3.9096e-08  
a 2.863605407134201 2.2691e-08 au
q 2.5782333723781 1.1896e-07 au
i 3.336184992917154 4.3507e-06 deg
node 87.2053084398575 6.9631e-05 deg
peri 303.3305410896966 7.293e-05 deg
M 318.3069713336833 2.2016e-05 deg
tp 2459405.488327051524
(2021-Jul-09.98832705)
0.00010894 TDB
period 1769.979301075996
4.85
2.1037e-05
5.76e-08
d
yr
n .203392209039479 2.4174e-09 deg/d
Q 3.148977441890301 2.4952e-08 au
  Orbit Determination Parameters
   # obs. used (total)      420  
   data-arc span      7057 days (19.32 yr)  
   first obs. used      2001-08-12  
   last obs. used      2020-12-07  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .56096  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 20:50:22  

Additional Information
 Earth MOID = 1.58443 au 
 Jupiter MOID = 2.26153 au 
 T_jup = 3.291 
[ 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 16.04   n/a MPCxxxxx  

171868 (2001 QR110)          Discovered 2001-Aug-24 by Kusnirak, P., Pravec, P. at Ondrejov
Reference: 20071224/Numbers.arcLast Updated: 2007-12-22
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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