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9505 Lohengrin (4131 T-2)
Classification: Main-belt Asteroid          SPK-ID: 2009505
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 20 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .227371589950745 4.0728e-08  
a 3.073444384938009 1.5238e-08 au
q 2.374630448509464 1.2541e-07 au
i 3.300431695587119 4.4971e-06 deg
node 50.49162812891463 7.0171e-05 deg
peri 142.9640550602627 7.0634e-05 deg
M 70.0528519395847 7.628e-06 deg
tp 2458617.534382457604
(2019-May-14.03438246)
4.1733e-05 TDB
period 1968.051528211341
5.39
1.4636e-05
4.007e-08
d
yr
n .182922039814265 1.3604e-09 deg/d
Q 3.772258321366553 1.8702e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1486  
   data-arc span      17073 days (46.74 yr)  
   first obs. used      1973-09-19  
   last obs. used      2020-06-17  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .55936  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Jun-23 16:59:11  

Additional Information
 Earth MOID = 1.37505 au 
 Jupiter MOID = 1.18359 au 
 T_jup = 3.187 
[ 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 13.9   n/a MPO473896  
diameter diameter 8.607 km 0.178 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.072   0.014 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

9505 Lohengrin           Discovered 1973 Sept. 29 by C. J. van Houten and I. van Houten-Groeneveld on Palomar Schmidt plates taken by T. Gehrels.
Lohengrin, the knight of the Holy Grail, was the title character of an opera by Wagner.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20001111/MPCPages.arcLast Updated: 2013-03-29

[ show close-approach data ]
Alternate Designations
 4131 T-2 = 1996 YN = 1998 KS45 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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