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46568 Stevenlee (1991 SL)
Classification: Inner Main-belt Asteroid          SPK-ID: 2046568
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 .09901088150301623 5.3508e-08  
a 1.963012016271388 6.3467e-09 au
q 1.768652466139344 1.0409e-07 au
i 19.13710555770969 5.633e-06 deg
node 12.87869555768375 1.0765e-05 deg
peri 25.11691414398722 2.1106e-05 deg
M 330.8995319044626 1.7081e-05 deg
tp 2458681.704545152135
(2019-Jul-17.20454515)
4.7646e-05 TDB
period 1004.576151792272
2.75
4.8719e-06
1.334e-08
d
yr
n .3583600898326337 1.738e-09 deg/d
Q 2.157371566403431 6.9751e-09 au
  Orbit Determination Parameters
   # obs. used (total)      1287  
   data-arc span      13686 days (37.47 yr)  
   first obs. used      1982-05-25  
   last obs. used      2019-11-13  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .48503  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Dec-04 03:18:03  

Additional Information
 Earth MOID = .780387 au 
 Jupiter MOID = 3.16121 au 
 T_jup = 3.806 
[ 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 14.8   n/a MPO412496  
diameter diameter 2.111 km 0.297 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.628   0.185 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

46568 Stevenlee           Discovered 1991 Sept. 30 by R. H. McNaught at Siding Spring Observatory.
Steven (Steve) Lee (b. 1956) has been a night assistant at the Anglo-Australian Telescope for the past two decades. He is also an active amateur astronomer and telescope maker, writing technical articles on these topics and encouraging interest in the amateur community. He visually discovered comet C/1999 H1 (Lee).
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20040504/MPCPages.arcLast Updated: 2004-05-11

Alternate Designations
 1991 SL = 2000 XU13 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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