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JPL Small-Body Database Browser
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109013 (2001 QS4)
Classification: Main-belt Asteroid          SPK-ID: 2109013
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 15 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1566449879073438 4.5685e-08  
a 2.899735412401451 2.5139e-08 au
q 2.44550639379133 1.4048e-07 au
i 12.26765931451931 6.1693e-06 deg
node 314.5693173035991 2.2999e-05 deg
peri 276.6936769081498 3.2792e-05 deg
M 285.4212455876272 2.8335e-05 deg
tp 2458974.135910691395
(2020-May-04.63591069)
0.00014458 TDB
period 1803.582386280599
4.94
2.3454e-05
6.421e-08
d
yr
n .1996027476972664 2.5957e-09 deg/d
Q 3.353964431011573 2.9077e-08 au
  Orbit Determination Parameters
   # obs. used (total)      473  
   data-arc span      10098 days (27.65 yr)  
   first obs. used      1991-08-02  
   last obs. used      2019-03-26  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .49921  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-13 09:59:24  

Additional Information
 Earth MOID = 1.4725 au 
 Jupiter MOID = 1.89313 au 
 T_jup = 3.235 
[ 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 15.0   n/a MPO432614  
diameter diameter 5.749 km 0.056 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.036   0.007 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

109013 (2001 QS4)          Discovered 2001-Aug-16 by LINEAR at Socorro
Reference: 20051019/Numbers.arcLast Updated: 2005-10-26

[ show close-approach data ]
Alternate Designations
 2001 QS4 = 1991 PX22 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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