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JPL Small-Body Database Browser
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109061 (2001 QE18)
Classification: Main-belt Asteroid          SPK-ID: 2109061
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 21 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1144898855441371 4.6199e-08  
a 3.078677704281239 1.9952e-08 au
q 2.726200246290793 1.4172e-07 au
i 11.42213336220519 5.0912e-06 deg
node 167.7033209451075 2.3442e-05 deg
peri 210.861468463201 3.0798e-05 deg
M 67.64361280464233 1.9402e-05 deg
tp 2458229.760328415970
(2018-Apr-21.26032842)
0.00010589 TDB
period 1973.080328451811
5.40
1.9181e-05
5.251e-08
d
yr
n .1824558254465372 1.7737e-09 deg/d
Q 3.431155162271684 2.2236e-08 au
  Orbit Determination Parameters
   # obs. used (total)      789  
   data-arc span      7268 days (19.90 yr)  
   first obs. used      1999-03-20  
   last obs. used      2019-02-11  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .57522  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-13 09:40:22  

Additional Information
 Earth MOID = 1.73281 au 
 Jupiter MOID = 2.04388 au 
 T_jup = 3.188 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 14.6   n/a MPO280504  
diameter diameter 4.610 km 1.409 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.132   0.056 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

109061 (2001 QE18)          Discovered 2001-Aug-16 by LINEAR at Socorro
Reference: 20051019/Numbers.arcLast Updated: 2005-10-26
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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