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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 10 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2668613430110613 6.9719e-08  
a 2.590677328884879 1.9158e-08 AU
q 1.899325697590351 1.8835e-07 AU
i 3.066492688894396 6.7808e-06 deg
node 212.9961389593166 0.00012061 deg
peri 116.3784017350819 0.00012198 deg
M 339.0019772706182 2.1039e-05 deg
tp 2457089.337088033302
(2015-Mar-07.83708803)
8.9817e-05 JED
period 1523.064914452086
4.17
1.6895e-05
4.626e-08
d
yr
n .2363654999757565 2.6219e-09 deg/d
Q 3.282028960179407 2.4271e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      540  
   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      .59554  
   data source      ORB  
   producer      Otto Matic  
   solution date      2015-Mar-09 14:18:32  

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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