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266923 (2010 DS21)
Classification: Main-belt Asteroid          SPK-ID: 2266923
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 .1068198996748781 6.1446e-08  
a 3.048117230504537 3.3761e-08 au
q 2.722517653744775 1.9476e-07 au
i 16.86607368190363 6.5696e-06 deg
node 136.3383226731856 2.0616e-05 deg
peri 293.5314668533861 4.076e-05 deg
M 39.17409270685878 3.0783e-05 deg
tp 2458788.984415496940
(2019-Nov-01.48441550)
0.00016737 TDB
period 1943.774703115711
5.32
3.2294e-05
8.842e-08
d
yr
n .1852066494244161 3.077e-09 deg/d
Q 3.373716807264299 3.7368e-08 au
  Orbit Determination Parameters
   # obs. used (total)      257  
   data-arc span      6373 days (17.45 yr)  
   first obs. used      2002-08-18  
   last obs. used      2020-01-29  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .5612  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-25 12:50:46  

Additional Information
 Earth MOID = 1.78728 au 
 Jupiter MOID = 1.90487 au 
 T_jup = 3.164 
[ 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 15.4   n/a MPO454984  
diameter diameter 5.211 km 0.308 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.049   0.007 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

266923 (2010 DS21)          Discovered 2010-Feb-16 by LINEAR at Socorro
Reference: 20110218/Numbers.arcLast Updated: 2011-02-22

[ show close-approach data ]
Alternate Designations
 2010 DS21 = 2002 RF283 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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