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58186 Langkavel (1991 RT4)
Classification: Main-belt Asteroid          SPK-ID: 2058186
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 22 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .02535505229777048 5.4258e-08  
a 2.202618820477024 8.5956e-09 au
q 2.146771305091776 1.2135e-07 au
i 2.04270356649687 3.4285e-06 deg
node 289.1546995648129 0.00015742 deg
peri 77.32061306932782 0.00017099 deg
M 283.1225411142013 6.7247e-05 deg
tp 2459255.478736339168
(2021-Feb-09.97873634)
0.00022319 TDB
period 1194.00857432681
3.27
6.9893e-06
1.914e-08
d
yr
n .3015053725246241 1.7649e-09 deg/d
Q 2.258466335862273 8.8136e-09 au
  Orbit Determination Parameters
   # obs. used (total)      1003  
   data-arc span      10488 days (28.71 yr)  
   first obs. used      1991-09-13  
   last obs. used      2020-05-31  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .58868  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Jun-23 22:33:11  

Additional Information
 Earth MOID = 1.14413 au 
 Jupiter MOID = 2.81394 au 
 T_jup = 3.662 
[ 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 16.1   n/a MPO319765  
rotation period rot_per 2.61 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:
[Chang, C.-K.; Lin, H.-W.; Ip, W.-H.; Prince, T.A.; et al. (2016) Astrophys. J. Sup. Ser. 227, A20.]

58186 Langkavel           Discovered 1991 Sept. 13 by L. D. Schmadel and F. Börngen at Tautenburg.
Arno Langkavel (b. 1938) is a former high school teacher and historian of astronomy. Over several decades he has collected information on memorial places of astronomers and published a book on these. Name proposed by the first discoverer following a suggestion from W. Dick.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: MPC batch dated 2015-04-04Last Updated: 2015-04-07

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Alternate Designations
 1991 RT4 = 1994 PU33 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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