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109066 (2001 QE21)
Classification: Main-belt Asteroid          SPK-ID: 2109066
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 25 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1192302955502382 5.0001e-08  
a 2.660389299142364 1.3943e-08 au
q 2.343190296726929 1.339e-07 au
i 13.62625192487438 5.7547e-06 deg
node 353.6585703162613 1.6704e-05 deg
peri 319.5885740944495 2.6995e-05 deg
M 146.2304474211853 2.1763e-05 deg
tp 2458356.699183163701
(2018-Aug-26.19918316)
9.4236e-05 TDB
period 1584.952369006362
4.34
1.246e-05
3.411e-08
d
yr
n .2271361632310069 1.7856e-09 deg/d
Q 2.977588301557799 1.5606e-08 au
  Orbit Determination Parameters
   # obs. used (total)      838  
   data-arc span      6859 days (18.78 yr)  
   first obs. used      2001-07-08  
   last obs. used      2020-04-18  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .5295  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-20 19:00:29  

Additional Information
 Earth MOID = 1.34743 au 
 Jupiter MOID = 2.414 au 
 T_jup = 3.336 
[ 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 MPO309936  
diameter diameter 2.937 km 0.431 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.246   0.109 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

109066 (2001 QE21)          Discovered 2001-Aug-16 by LINEAR at Socorro
Reference: 20051019/Numbers.arcLast Updated: 2005-10-26

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