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JPL Small-Body Database Browser
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109157 (2001 QW60)
Classification: Main-belt Asteroid          SPK-ID: 2109157
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 17 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1298003399944386 4.0704e-08  
a 3.05732495024976 2.4855e-08 au
q 2.660483132233861 1.2602e-07 au
i 10.86583759292863 6.0611e-06 deg
node 178.9393573937136 2.359e-05 deg
peri 249.6665882478546 3.291e-05 deg
M 38.05407426467223 2.2035e-05 deg
tp 2458394.100097274995
(2018-Oct-02.60009727)
0.00011929 TDB
period 1952.588951821708
5.35
2.3811e-05
6.519e-08
d
yr
n .1843706017408992 2.2483e-09 deg/d
Q 3.454166768265658 2.8082e-08 au
  Orbit Determination Parameters
   # obs. used (total)      652  
   data-arc span      6428 days (17.60 yr)  
   first obs. used      2001-08-11  
   last obs. used      2019-03-18  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .61585  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-13 07:35:15  

Additional Information
 Earth MOID = 1.69744 au 
 Jupiter MOID = 1.97447 au 
 T_jup = 3.195 
[ 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 14.7   n/a MPO325220  
diameter diameter 4.739 km 1.670 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.125   0.065 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

109157 (2001 QW60)          Discovered 2001-Aug-17 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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