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JPL Small-Body Database Browser
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40459 Rektorys (1999 RK43)
Classification: Main-belt Asteroid          SPK-ID: 2040459
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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For accurate long-term ephemerides, please instead use our Horizons system.This orbit viewer was implemented using two-body methods, and hence should not be used for determining accurate long-term trajectories (over several years or decades) or planetary encounter circumstances.


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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 29 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1163222045112874 3.6352e-08  
a 2.763544505419212 1.5533e-08 au
q 2.442082916283794 9.8173e-08 au
i 8.315285193026181 3.8383e-06 deg
node 250.374818898427 3.4121e-05 deg
peri 210.7008604546802 4.1138e-05 deg
M 73.61131350932612 2.1922e-05 deg
tp 2458657.384618089980
(2019-Jun-22.88461809)
0.00010175 TDB
period 1678.023819965633
4.59
1.4147e-05
3.873e-08
d
yr
n .2145380749168227 1.8088e-09 deg/d
Q 3.08500609455463 1.734e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1051  
   data-arc span      10313 days (28.24 yr)  
   first obs. used      1992-02-02  
   last obs. used      2020-04-28  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .47575  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-20 08:51:09  

Additional Information
 Earth MOID = 1.46299 au 
 Jupiter MOID = 2.10969 au 
 T_jup = 3.315 
[ 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 14.8   n/a MPO493131  
diameter diameter 3.559 km 0.090 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
rotation period rot_per 38.034 h n/a LCDB (Rev. 2019-August); Warner et al., 2009 Result based on less than full coverage, so that the period may be wrong by 30 percent or so.
Published Reference List:
[Waszczak, A.; Chang, C.-K.; Ofeck, E.O.; Laher, F.; et al. (2015) Astron. J. 150, A75.]
geometric albedo albedo 0.168   0.031 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

40459 Rektorys           Discovered 1999 Sept. 14 by P. Pravec and P. Kušnirák at Ondřejov.
Karel Rektorys (b. 1923), Czech mathematician and professor at the Czech Technical University in Prague, is the chief editor of the book Survey of Applicable Mathematics, the English translation of which became an official handbook at M.I.T. in Boston. He is the author of several monographs on variational methods.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20021120/MPCPages.arcLast Updated: 2003-10-02

[ show close-approach data ]
Alternate Designations
 1999 RK43 = 1992 CU3 = 2000 VU58 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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