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109027 (2001 QQ9)
Classification: Main-belt Asteroid          SPK-ID: 2109027
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 20 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .174299594987097 4.0817e-08  
a 2.739383828512556 1.3172e-08 au
q 2.261910336688615 1.1271e-07 au
i 2.434022152870847 4.6802e-06 deg
node 286.7977908514664 0.00011052 deg
peri 3.125082603096309 0.00011161 deg
M 80.1426479072493 1.3476e-05 deg
tp 2458631.829027146617
(2019-May-28.32902715)
6.2087e-05 TDB
period 1656.066447677387
4.53
1.1944e-05
3.27e-08
d
yr
n .2173825817828117 1.5678e-09 deg/d
Q 3.216857320336499 1.5467e-08 au
  Orbit Determination Parameters
   # obs. used (total)      684  
   data-arc span      8055 days (22.05 yr)  
   first obs. used      1997-10-05  
   last obs. used      2019-10-25  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .52994  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-24 03:18:07  

Additional Information
 Earth MOID = 1.24562 au 
 Jupiter MOID = 1.96193 au 
 T_jup = 3.327 
[ 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 15.5   n/a MPO264099  
diameter diameter 2.940 km 0.049 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.155   0.032 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

109027 (2001 QQ9)          Discovered 2001-Aug-16 by LINEAR at Socorro
Reference: 20051019/Numbers.arcLast Updated: 2005-10-26

[ show close-approach data ]
Alternate Designations
 2001 QQ9 = 2000 ED4 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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