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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 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 24 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2285784213701871 3.6661e-08  
a 3.071586598142554 1.4617e-08 au
q 2.369488182437305 1.1115e-07 au
i 3.298541634614259 3.9015e-06 deg
node 50.34902904713135 6.7824e-05 deg
peri 142.9463702557748 6.8244e-05 deg
M 106.6915900908075 7.4772e-06 deg
tp 2458617.766131708584
(2019-May-14.26613171)
4.0657e-05 TDB
period 1966.267373148699
5.38
1.4036e-05
3.843e-08
d
yr
n .1830880199285974 1.3069e-09 deg/d
Q 3.773685013847802 1.7958e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1636  
   data-arc span      17224 days (47.16 yr)  
   first obs. used      1973-09-19  
   last obs. used      2020-11-15  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .54241  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-12 21:25:37  

Additional Information
 Earth MOID = 1.36929 au 
 Jupiter MOID = 1.18107 au 
 T_jup = 3.188 
[ 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 13.94   n/a E2021B10  
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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