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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 2457000.5 (2014-Dec-09.0) TDB
Reference: JPL 4 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .05774327627334062 2.0738e-07  
a 3.253997117461317 1.0459e-07 AU
q 3.066100662915094 7.4161e-07 AU
i 23.24188740244522 1.8014e-05 deg
node 55.23152619606586 2.5685e-05 deg
peri 317.4845316039244 0.00010027 deg
M 358.3685831719694 9.8406e-05 deg
tp 2457010.215979944204
(2014-Dec-18.71597994)
0.00058605 JED
period 2143.996996853173
5.87
0.00010337
2.83e-07
d
yr
n .1679106829572923 8.0955e-09 deg/d
Q 3.44189357200754 1.1063e-07 AU
  Orbit Determination Parameters
   # obs. used (total)      261  
   data-arc span      6158 days (16.86 yr)  
   first obs. used      1997-11-06  
   last obs. used      2014-09-16  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .60937  
   data source      ORB  
   producer      Otto Matic  
   solution date      2014-Oct-09 19:01:58  

Additional Information
 Earth MOID = 2.09941 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 14.3 mag n/a MPO310411  

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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