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9509 Amfortas (3453 T-3)
Classification: Main-belt Asteroid          SPK-ID: 2009509
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2457000.5 (2014-Dec-09.0) TDB
Reference: JPL 10 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1496868385268857 5.1319e-08  
a 2.316605191353035 1.4173e-08 AU
q 1.969839884144428 1.2226e-07 AU
i 6.690771466364048 7.0869e-06 deg
node 187.4319190096608 4.4438e-05 deg
peri 72.71268462824288 5.093e-05 deg
M 296.5174261206679 2.4308e-05 deg
tp 2457227.605938582156
(2015-Jul-24.10593858)
8.748e-05 JED
period 1287.883160581712
3.53
1.1819e-05
3.236e-08
d
yr
n .2795284626886457 2.5652e-09 deg/d
Q 2.663370498561642 1.6295e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      865  
   data-arc span      13683 days (37.46 yr)  
   first obs. used      1977-10-07  
   last obs. used      2015-03-25  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .57889  
   data source      ORB  
   producer      Otto Matic  
   solution date      2015-Apr-07 16:35:16  

Additional Information
 Earth MOID = .968968 AU 
 T_jup = 3.557 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 14.7 mag n/a MPO324396  

9509 Amfortas           Discovered 1977 Oct. 16 by C. J. van Houten and I. van Houten-Groeneveld on Palomar Schmidt plates taken by T. Gehrels.
Amfortas was the king of Monsalvat and of the knights of the Holy Grail in Wagner's opera Parsifal.
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
 3453 T-3 = 1990 EQ4 
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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