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100957 (1998 QX11)
Classification: Main-belt Asteroid          SPK-ID: 2100957
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 24 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2822986014654861 3.8897e-08  
a 2.397039254333233 9.7274e-09 au
q 1.72035842517709 9.4338e-08 au
i 8.149455388571948 4.5507e-06 deg
node 160.1603014241042 3.5959e-05 deg
peri 184.7451541466044 3.6853e-05 deg
M 300.1051966803656 1.0131e-05 deg
tp 2459226.026608250297
(2021-Jan-11.52660825)
3.8868e-05 TDB
period 1355.536281450509
3.71
8.2513e-06
2.259e-08
d
yr
n .2655775466332612 1.6166e-09 deg/d
Q 3.073720083489376 1.2473e-08 au
  Orbit Determination Parameters
   # obs. used (total)      437  
   data-arc span      7973 days (21.83 yr)  
   first obs. used      1998-08-17  
   last obs. used      2020-06-15  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .59243  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Jun-24 01:14:17  

Additional Information
 Earth MOID = .713032 au 
 Jupiter MOID = 2.34874 au 
 T_jup = 3.460 
[ 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 16.1   n/a MPO469017  

100957 (1998 QX11)          Discovered 1998-Aug-17 by LINEAR at Socorro
Reference: 20051019/Numbers.arcLast Updated: 2005-10-26

[ show close-approach data ]
Alternate Designations
 1998 QX11 = 2002 TA81 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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