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9501 Ywain (2071 T-2)
Classification: Main-belt Asteroid          SPK-ID: 2009501
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 9 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2668613447757598 6.9764e-08  
a 2.590677329316542 1.9166e-08 AU
q 1.899325693335056 1.8845e-07 AU
i 3.066493117966537 6.783e-06 deg
node 212.9961125053922 0.00012106 deg
peri 116.3784281520589 0.00012243 deg
M 339.0019770020716 2.1042e-05 deg
tp 2457089.337089191655
(2015-Mar-07.83708919)
8.9831e-05 JED
period 1523.064914832749
4.17
1.6902e-05
4.628e-08
d
yr
n .2363654999166811 2.623e-09 deg/d
Q 3.282028965298029 2.4281e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      538  
   data-arc span      14927 days (40.87 yr)  
   first obs. used      1973-09-19  
   last obs. used      2014-08-02  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .59041  
   data source      ORB  
   producer      Otto Matic  
   solution date      2014-Aug-13 14:14:51  

Additional Information
 Earth MOID = .891479 AU 
 T_jup = 3.367 
[ 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 14.9 mag n/a MPO302124  

9501 Ywain           Discovered 1973 Sept. 29 by C. J. van Houten and I. van Houten-Groeneveld on Palomar Schmidt plates taken by T. Gehrels.
Ywain was a knight of the Round Table of King Arthur.
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
 2071 T-2 = 1994 VH3 
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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