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109257 (2001 QR105)
Classification: Main-belt Asteroid          SPK-ID: 2109257
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 22 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2244123889135341 4.5065e-08  
a 2.604458883009475 1.3956e-08 au
q 2.019986043246244 1.1407e-07 au
i 3.37855725634044 5.1044e-06 deg
node 202.3376702743195 6.9216e-05 deg
peri 193.5222875616235 7.0308e-05 deg
M 157.127679448396 1.6356e-05 deg
tp 2458330.422738042646
(2018-Jul-30.92273804)
6.5331e-05 TDB
period 1535.234372145564
4.20
1.234e-05
3.379e-08
d
yr
n .2344918838007012 1.8848e-09 deg/d
Q 3.188931722772705 1.7088e-08 au
  Orbit Determination Parameters
   # obs. used (total)      617  
   data-arc span      7682 days (21.03 yr)  
   first obs. used      1999-04-15  
   last obs. used      2020-04-26  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .55681  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-20 19:02:47  

Additional Information
 Earth MOID = 1.02707 au 
 Jupiter MOID = 2.24174 au 
 T_jup = 3.374 
[ 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 MPO469116  

109257 (2001 QR105)          Discovered 2001-Aug-23 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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