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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 ]

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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 17 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .15675639058768 4.422e-08  
a 2.899650991921615 1.9103e-08 au
q 2.445112168463996 1.3246e-07 au
i 12.2683889633811 5.3401e-06 deg
node 314.5696284200023 2.2951e-05 deg
peri 276.7916243679222 2.8034e-05 deg
M 5.193705757715372 1.6941e-05 deg
tp 2458974.480924554143
(2020-May-04.98092455)
8.4852e-05 TDB
period 1803.503624862421
4.94
1.7823e-05
4.88e-08
d
yr
n .1996114646165252 1.9726e-09 deg/d
Q 3.354189815379234 2.2098e-08 au
  Orbit Determination Parameters
   # obs. used (total)      532  
   data-arc span      10547 days (28.88 yr)  
   first obs. used      1991-08-02  
   last obs. used      2020-06-17  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .4837  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Jun-24 01:32:27  

Additional Information
 Earth MOID = 1.4721 au 
 Jupiter MOID = 1.89265 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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