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249876 (2001 QS213)
Classification: Main-belt Asteroid          SPK-ID: 2249876
[ 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 19 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1981508122720796 6.5925e-08  
a 2.660899071414304 1.6733e-08 au
q 2.133639759039538 1.811e-07 au
i 11.55206055741826 7.312e-06 deg
node 332.7729250507481 2.1358e-05 deg
peri 348.255594551758 2.5226e-05 deg
M 130.4896069789039 1.2358e-05 deg
tp 2458425.835390461246
(2018-Nov-03.33539046)		 5.3026e-05 TDB
period 1585.407943388145
4.34		 1.4955e-05
4.094e-08		 d
yr
n .2270708945930035 2.1419e-09 deg/d
Q 3.188158383789071 2.0048e-08 au
   Orbit Determination Parameters
   # obs. used (total)      377  
   data-arc span      6739 days (18.45 yr)  
   first obs. used      2001-08-16  
   last obs. used      2020-01-28  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .55524  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-25 10:28:02  

Additional Information
 Earth MOID = 1.1227 au 
 Jupiter MOID = 2.15681 au 
 T_jup = 3.329 
[ 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 15.8   n/a MPO454853  
diameter diameter 4.339 km 0.026 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.048   0.009 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

249876 (2001 QS213)          Discovered 2001-Aug-23 by LONEOS at Anderson Mesa
Reference: 20100923/Numbers.arcLast Updated: 2010-09-27

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