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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 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 25 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .02494653411131396 4.6793e-08  
a 2.201821703110332 8.1537e-09 au
q 2.146893882886658 1.0657e-07 au
i 2.04247413492695 3.3976e-06 deg
node 289.1502191847087 0.00012904 deg
peri 77.61595543956381 0.00014494 deg
M 343.1242939715991 6.5611e-05 deg
tp 2459256.441112618870
(2021-Feb-10.94111262)
0.0002175 TDB
period 1193.360473861091
3.27
6.6288e-06
1.815e-08
d
yr
n .3016691166544406 1.6757e-09 deg/d
Q 2.256749523334005 8.3571e-09 au
  Orbit Determination Parameters
   # obs. used (total)      1124  
   data-arc span      10679 days (29.24 yr)  
   first obs. used      1991-09-13  
   last obs. used      2020-12-08  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .57313  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Feb-24 05:42:38  

Additional Information
 Earth MOID = 1.14255 au 
 Jupiter MOID = 2.81276 au 
 T_jup = 3.663 
[ 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 16.17   n/a E2021B10  
rotation period rot_per 2.61 h n/a LCDB (Rev. 2020-October); 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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