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109388 (2001 QB169)
Classification: Main-belt Asteroid          SPK-ID: 2109388
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 19 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1833530147530122 4.9121e-08  
a 2.429239786480665 1.1668e-08 au
q 1.983831348071471 1.2279e-07 au
i 6.161713683954896 4.7432e-06 deg
node 108.6931189840667 4.8676e-05 deg
peri 274.2686521298328 5.064e-05 deg
M 229.047189105199 1.634e-05 deg
tp 2459103.555995378430
(2020-Sep-11.05599538)
6.5211e-05 TDB
period 1382.942123187557
3.79
9.9637e-06
2.728e-08
d
yr
n .2603145814737585 1.8755e-09 deg/d
Q 2.874648224889859 1.3807e-08 au
  Orbit Determination Parameters
   # obs. used (total)      608  
   data-arc span      9417 days (25.78 yr)  
   first obs. used      1993-07-20  
   last obs. used      2019-05-02  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .54413  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-May-30 06:46:30  

Additional Information
 Earth MOID = .997914 au 
 Jupiter MOID = 2.59841 au 
 T_jup = 3.478 
[ 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 15.6   n/a MPO436526  
diameter diameter 2.200 km 0.930 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.175   0.153 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

109388 (2001 QB169)          Discovered 2001-Aug-26 by NEAT at Palomar
Reference: 20051019/Numbers.arcLast Updated: 2005-10-26
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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