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46311 (2001 QF20)
Classification: Main-belt Asteroid          SPK-ID: 2046311
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 .09420280383871807 5.4692e-08  
a 3.011272956732415 1.9022e-08 au
q 2.727602601084515 1.584e-07 au
i 1.014423698862769 4.7463e-06 deg
node 186.9293327351129 0.00023792 deg
peri 183.1612617232112 0.00023899 deg
M 116.7755359643432 2.233e-05 deg
tp 2457981.382640798671
(2017-Aug-15.88264080)
0.00011734 TDB
period 1908.638204671005
5.23
1.8085e-05
4.951e-08
d
yr
n .1886161552875621 1.7872e-09 deg/d
Q 3.294943312380315 2.0813e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1231  
   data-arc span      9128 days (24.99 yr)  
   first obs. used      1994-04-06  
   last obs. used      2019-04-03  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .52632  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-13 02:37:02  

Additional Information
 Earth MOID = 1.72617 au 
 Jupiter MOID = 2.1651 au 
 T_jup = 3.242 
[ 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 14.1   n/a MPO436106  
diameter diameter 4.010 km 0.714 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.180   0.043 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

46311 (2001 QF20)          Discovered 2001-Aug-16 by LINEAR at Socorro
Reference: 20020822/Numbers.arcLast Updated: 2004-04-19

Alternate Designations
 2001 QF20 = 1999 HD6 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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