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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 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 26 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .09471057254652618 5.0003e-08  
a 3.009840340805828 1.6918e-08 au
q 2.724776638854476 1.4649e-07 au
i 1.014653583315216 4.5787e-06 deg
node 186.92697836278 0.00020415 deg
peri 182.9829780817666 0.00020507 deg
M 230.1969769628742 2.1196e-05 deg
tp 2459888.195086314660
(2022-Nov-04.69508631)
0.00011497 TDB
period 1907.27631206608
5.22
1.6081e-05
4.403e-08
d
yr
n .1887508368465111 1.5914e-09 deg/d
Q 3.294904042757179 1.852e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1377  
   data-arc span      9563 days (26.18 yr)  
   first obs. used      1994-04-06  
   last obs. used      2020-06-11  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .51784  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 09:47:48  

Additional Information
 Earth MOID = 1.72262 au 
 Jupiter MOID = 2.16946 au 
 T_jup = 3.243 
[ 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 14.12   n/a E2021B10  
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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