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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 2457600.5 (2016-Jul-31.0) TDB
Reference: JPL 17 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .266696150016125 4.2283e-08  
a 2.589947533141088 1.2855e-08 au
q 1.899218497308599 1.0833e-07 au
i 3.066904863722337 6.4059e-06 deg
node 212.9930131554751 9.8579e-05 deg
peri 116.3223525145289 9.995e-05 deg
M 120.9155365040988 1.6738e-05 deg
tp 2457089.154447797534
(2015-Mar-07.65444780)
6.8167e-05 JED
period 1522.421386987335
4.17
1.1334e-05
3.103e-08
d
yr
n .236465411663975 1.7605e-09 deg/d
Q 3.280676568973576 1.6283e-08 au
  Orbit Determination Parameters
   # obs. used (total)      745  
   data-arc span      15531 days (42.52 yr)  
   first obs. used      1973-09-19  
   last obs. used      2016-03-28  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .57286  
   data source      ORB  
   producer      Otto Matic  
   solution date      2016-Apr-25 13:05:35  

Additional Information
 Earth MOID = .89003 au 
 Jupiter MOID = 2.09298 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 15.0 mag n/a MPO358722  

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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