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109111 (2001 QD39)
Classification: Main-belt Asteroid          SPK-ID: 2109111
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 27 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .06757635700958187 6.059e-08  
a 3.147049926566869 2.4076e-08 au
q 2.934383757202208 1.9255e-07 au
i 14.89910490719935 6.3059e-06 deg
node 334.3587892469678 1.6689e-05 deg
peri 2.874611000396681 3.6413e-05 deg
M 114.3946325148217 3.2601e-05 deg
tp 2458352.526831400317
(2018-Aug-22.02683140)
0.00018499 TDB
period 2039.172079736014
5.58
2.3401e-05
6.407e-08
d
yr
n .1765422367133452 2.0259e-09 deg/d
Q 3.35971609593153 2.5703e-08 au
  Orbit Determination Parameters
   # obs. used (total)      943  
   data-arc span      6816 days (18.66 yr)  
   first obs. used      2001-05-31  
   last obs. used      2020-01-28  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .52922  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-24 03:19:44  

Additional Information
 Earth MOID = 1.92486 au 
 Jupiter MOID = 2.01544 au 
 T_jup = 3.153 
[ 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 13.9   n/a MPO366459  
diameter diameter 9.832 km 0.176 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.066   0.014 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

109111 (2001 QD39)          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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