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109458 (2001 QG211)
Classification: Main-belt Asteroid          SPK-ID: 2109458
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 2459396.5 (2021-Jul-01.0) TDB
Reference: JPL 18 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2140636700972667 5.0163e-08  
a 2.431887055385753 9.0379e-09 au
q 1.911308387047844 1.2021e-07 au
i 8.376960442004204 6.746e-06 deg
node 335.8640951127877 2.0644e-05 deg
peri 330.3611679206132 2.4017e-05 deg
M 108.6748403944405 1.0781e-05 deg
tp 2458978.342357418619
(2020-May-08.84235742)
4.1174e-05 TDB
period 1385.203334855768
3.79
7.722e-06
2.114e-08
d
yr
n .2598896428714449 1.4488e-09 deg/d
Q 2.952465723723662 1.0973e-08 au
  Orbit Determination Parameters
   # obs. used (total)      650  
   data-arc span      7617 days (20.85 yr)  
   first obs. used      2000-02-12  
   last obs. used      2020-12-20  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .47367  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Jul-09 00:19:39  

Additional Information
 Earth MOID = .901269 au 
 Jupiter MOID = 2.33578 au 
 T_jup = 3.461 
[ 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 16.37   n/a E2021B55  
diameter diameter 2.723 km 0.658 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.086   0.029 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

109458 (2001 QG211)          Discovered 2001-Aug-23 by LONEOS at Anderson Mesa
Reference: 20051019/Numbers.arcLast Updated: 2005-10-26
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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