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192450 (1997 WY21)
Classification: Outer Main-belt Asteroid          SPK-ID: 2192450
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2456800.5 (2014-May-23.0) TDB
Reference: JPL 2 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .05792687139090114 3.208e-07  
a 3.254641274919199 1.2657e-07 AU
q 3.066110088363436 1.0408e-06 AU
i 23.24070429823131 2.3809e-05 deg
node 55.23723549190876 2.6008e-05 deg
peri 317.4462411105206 0.00022703 deg
M 324.8279136680943 0.00024509 deg
tp 2457010.031223187408
(2014-Dec-18.53122319)
0.0014663 JED
period 2144.633663060266
5.87
0.00012511
3.425e-07
d
yr
n .1678608361888254 9.792e-09 deg/d
Q 3.443172461474962 1.339e-07 AU
  Orbit Determination Parameters
   # obs. used (total)      254  
   data-arc span      5312 days (14.54 yr)  
   first obs. used      1997-11-06  
   last obs. used      2012-05-23  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .61495  
   data source      ORB  
   producer      Otto Matic  
   solution date      2014-Jun-11 16:55:41  

Additional Information
 Earth MOID = 2.09854 AU 
 T_jup = 3.050 
[ 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 14.2 mag n/a MPO232228  

192450 (1997 WY21)          Discovered 1997-Nov-23 by Beijing Schmidt CCD Asteroid Program at Xinglong (327)
Reference: 20081113/Numbers.arcLast Updated: 2008-11-17

[ show close-approach data ]
Alternate Designations
 1997 WY21 = 2003 UY267 
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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