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109261 (2001 QB108)
Classification: Main-belt Asteroid          SPK-ID: 2109261
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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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.


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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 22 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1134099235684503 4.1385e-08  
a 3.168271366853838 3.0798e-08 au
q 2.808957953294835 1.3137e-07 au
i 5.105004951554875 6.2269e-06 deg
node 37.7505627601547 6.146e-05 deg
peri 227.4254646667966 7.0199e-05 deg
M 188.5320907478895 3.7195e-05 deg
tp 2459981.597879819731
(2023-Feb-06.09787982)
0.00021874 TDB
period 2059.832876458519
5.64
3.0034e-05
8.223e-08
d
yr
n .1747714604006854 2.5483e-09 deg/d
Q 3.527584780412842 3.429e-08 au
  Orbit Determination Parameters
   # obs. used (total)      597  
   data-arc span      7018 days (19.21 yr)  
   first obs. used      2001-08-11  
   last obs. used      2020-10-28  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .6029  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-12 19:13:07  

Additional Information
 Earth MOID = 1.7966 au 
 Jupiter MOID = 1.55597 au 
 T_jup = 3.187 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457097.5 (2015-Mar-16.0) TDB
Reference: JPL 22 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1168693736020299 4.1417e-08  
q 2.79669312276945 1.322e-07 au
tp 2457917.447151002611
(2017-Jun-12.94715100)
0.00020062 TDB
node 37.93051790266465 6.1637e-05 deg
peri 226.7122994154038 6.9828e-05 deg
i 5.100226809215259 6.2152e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      597  
   data-arc span      7018 days (19.21 yr)  
   first obs. used      2001-08-11  
   last obs. used      2020-10-28  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .6029  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-12 19:13:07  

Additional Information
 Jupiter MOID = 1.55597 au 
 T_jup = 3.187 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.715339200929459E-15 -5.359374206047783E-15 -5.787491065707795E-13 -4.195329149283667E-15 -8.706338170604787E-14 1.536571102260453E-16
q -5.359374206047783E-15 1.747814273984531E-14 3.734127973398097E-12 2.155753659139032E-14 5.261867775957402E-13 -5.81207189090347E-16
tp -5.787491065707795E-13 3.734127973398097E-12 4.02466260640792E-8 9.962659414730621E-12 6.613979129750672E-9 1.329464085244646E-12
node -4.195329149283667E-15 2.155753659139032E-14 9.962659414730621E-12 3.79917221691143E-9 -3.782435769457719E-9 -1.357450891037608E-10
peri -8.706338170604787E-14 5.261867775957402E-13 6.613979129750672E-9 -3.782435769457719E-9 4.875884232981986E-9 1.353012825738724E-10
i 1.536571102260453E-16 -5.81207189090347E-16 1.329464085244646E-12 -1.357450891037608E-10 1.353012825738724E-10 3.862873922719557E-11

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 14.6   n/a MPO502755  

109261 (2001 QB108)          Discovered 2001-Aug-25 by LONEOS at Anderson Mesa
Reference: 20051019/Numbers.arcLast Updated: 2005-10-26

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