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JPL Small-Body Database Browser
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105489 (2000 QE221)
Classification: Main-belt Asteroid          SPK-ID: 2105489
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 14 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1280278205770071 4.6658e-08  
a 2.876084239129785 2.7563e-08 au
q 2.507865442198119 1.3412e-07 au
i 6.535085666847188 4.6056e-06 deg
node 104.5911034461654 4.9279e-05 deg
peri 238.801005888121 5.2866e-05 deg
M 5.461903512700204 2.1287e-05 deg
tp 2458973.470229815790
(2020-May-03.97022982)
0.00010517 TDB
period 1781.561546023206
4.88
2.5611e-05
7.012e-08
d
yr
n .202069920516409 2.9048e-09 deg/d
Q 3.244303036061451 3.1092e-08 au
  Orbit Determination Parameters
   # obs. used (total)      390  
   data-arc span      6524 days (17.86 yr)  
   first obs. used      2000-08-01  
   last obs. used      2018-06-12  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .52468  
   source      ORB  
   producer      Otto Matic  
   solution date      2018-Oct-04 04:09:06  

Additional Information
 Earth MOID = 1.50727 au 
 Jupiter MOID = 2.14873 au 
 T_jup = 3.274 
[ 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 MPO436498  
diameter diameter 2.835 km 0.641 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.152   0.052 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

105489 (2000 QE221)          Discovered 2000-Aug-21 by LONEOS at Anderson Mesa
Reference: 20051019/Numbers.arcLast Updated: 2005-10-26

[ show close-approach data ]
Alternate Designations
 2000 QE221 = 2000 PP31 = 2001 YW98 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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