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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 ]

[ show orbit diagram ]
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 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457905.5 (2017-Jun-01.0) TDB
Reference: JPL 18 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2138881136499154 5.0094e-08  
q 1.912082832649898 1.2012e-07 au
tp 2457593.714504529652
(2016-Jul-24.21450453)
4.1249e-05 TDB
node 335.9019427747045 2.0655e-05 deg
peri 330.4930952689183 2.403e-05 deg
i 8.373947008477144 6.7442e-06 deg
  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
 Jupiter MOID = 2.33578 au 
 T_jup = 3.461 
Orbit Covariance (6×6)
  e q tp node peri i
e 2.509367057049532E-15 -6.007205898052381E-15 1.040575343697959E-12 -1.15318468581238E-14 2.405862419188486E-13 -1.903066165491578E-14
q -6.007205898052381E-15 1.442802865305078E-14 -2.561711033802138E-12 2.702663534860464E-14 -5.924993496948208E-13 4.579411061076667E-14
tp 1.040575343697959E-12 -2.561711033802138E-12 1.701507644816815E-9 -9.537580569385849E-13 5.057116205155911E-10 -1.31393029661566E-11
node -1.15318468581238E-14 2.702663534860464E-14 -9.537580569385849E-13 4.266397386113843E-10 -4.214707049597463E-10 4.369559363463837E-11
peri 2.405862419188486E-13 -5.924993496948208E-13 5.057116205155911E-10 -4.214707049597463E-10 5.774239683144473E-10 -4.670414885044395E-11
i -1.903066165491578E-14 4.579411061076667E-14 -1.31393029661566E-11 4.369559363463837E-11 -4.670414885044395E-11 4.548377512358397E-11

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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