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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 ]

[ show orbit diagram ]
Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 16 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1980069299468483 7.0673e-08  
a 2.660205153576773 1.7385e-08 au
q 2.133466098088252 1.947e-07 au
i 11.55173892946204 7.6657e-06 deg
node 332.7857966221524 2.1515e-05 deg
peri 348.1692608588383 2.5677e-05 deg
M 39.73897825414587 1.2292e-05 deg
tp 2458425.561532211898
(2018-Nov-03.06153221)
5.3826e-05 TDB
period 1584.787812131187
4.34
1.5535e-05
4.253e-08
d
yr
n .2271597479765319 2.2268e-09 deg/d
Q 3.186944209065294 2.0827e-08 au
  Orbit Determination Parameters
   # obs. used (total)      360  
   data-arc span      6184 days (16.93 yr)  
   first obs. used      2001-08-16  
   last obs. used      2018-07-22  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .57153  
   source      ORB  
   producer      Otto Matic  
   solution date      2018-Oct-04 09:57:51  

Additional Information
 Earth MOID = 1.12165 au 
 Jupiter MOID = 2.15479 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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