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JPL Small-Body Database Browser
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109064 (2001 QR20)
Classification: Main-belt Asteroid          SPK-ID: 2109064
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 25 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .07244116824655183 5.6946e-08  
a 3.194753173123821 2.4982e-08 au
q 2.963321521003353 1.8581e-07 au
i 13.7326286452581 7.2436e-06 deg
node 342.0761871612655 1.6608e-05 deg
peri 27.98438652513846 3.7626e-05 deg
M 14.73025843802104 3.3725e-05 deg
tp 2458515.158109760518
(2019-Jan-31.65810976)
0.00019534 TDB
period 2085.71225111112
5.71
2.4464e-05
6.698e-08
d
yr
n .172602908099244 2.0245e-09 deg/d
Q 3.426184825244289 2.6791e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1077  
   data-arc span      15057 days (41.22 yr)  
   first obs. used      1978-09-06  
   last obs. used      2019-11-27  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .51616  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Dec-04 10:13:02  

Additional Information
 Earth MOID = 1.96645 au 
 Jupiter MOID = 2.00207 au 
 T_jup = 3.147 
[ 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 MPO412770  
diameter diameter 10.656 km 0.231 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.047   0.006 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

109064 (2001 QR20)          Discovered 2001-Aug-16 by LINEAR at Socorro
Reference: 20051019/Numbers.arcLast Updated: 2005-10-26

Alternate Designations
 2001 QR20 = 1978 RQ14 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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