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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 6 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .05774332544673649 2.0113e-07  
a 3.253997133583745 1.0275e-07 AU
q 3.066100518096471 7.2696e-07 AU
i 23.2418773133846 1.634e-05 deg
node 55.23152580011276 2.5672e-05 deg
peri 317.4845754837883 8.8575e-05 deg
M 358.3685347073466 8.329e-05 deg
tp 2457010.216268649764
(2014-Dec-18.71626865)
0.00049597 JED
period 2143.997012787316
5.87
0.00010155
2.78e-07
d
yr
n .1679106817093835 7.9532e-09 deg/d
Q 3.441893749071018 1.0868e-07 AU
  Orbit Determination Parameters
   # obs. used (total)      275  
   data-arc span      6225 days (17.04 yr)  
   first obs. used      1997-11-06  
   last obs. used      2014-11-22  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .63626  
   data source      ORB  
   producer      Otto Matic  
   solution date      2015-Jan-08 09:15:42  

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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