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109240 (2001 QD98)
Classification: Main-belt Asteroid          SPK-ID: 2109240
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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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 .1952659156808214 4.7256e-08  
a 3.069600407417291 1.9811e-08 au
q 2.470212073088732 1.3963e-07 au
i 10.64856987898402 4.5093e-06 deg
node 158.5864734553978 1.9591e-05 deg
peri 207.7714913954482 2.172e-05 deg
M 138.1987124411318 1.1177e-05 deg
tp 2458246.410855905236
(2018-May-07.91085591)
5.7929e-05 TDB
period 1964.360500028201
5.38
1.9017e-05
5.207e-08
d
yr
n .1832657498431839 1.7742e-09 deg/d
Q 3.668988741745851 2.368e-08 au
  Orbit Determination Parameters
   # obs. used (total)      969  
   data-arc span      6867 days (18.80 yr)  
   first obs. used      2001-06-29  
   last obs. used      2020-04-17  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .54051  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-20 19:02:28  

Additional Information
 Earth MOID = 1.47343 au 
 Jupiter MOID = 1.80194 au 
 T_jup = 3.176 
[ 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 14.2   n/a MPO338038  

109240 (2001 QD98)          Discovered 2001-Aug-19 by LINEAR at Socorro
Reference: 20051019/Numbers.arcLast Updated: 2005-10-26

[ show close-approach data ]
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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