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227474 (2005 WZ167)
Classification: Main-belt Asteroid          SPK-ID: 2227474
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 19 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .04309261291610707 3.7629e-08  
a 2.634359938422998 2.0805e-08 au
q 2.520838485314836 9.9476e-08 au
i 1.535352797431383 5.539e-06 deg
node 234.620471256613 0.00020009 deg
peri 26.70251046498705 0.00022075 deg
M .4312197409772461 9.0496e-05 deg
tp 2459198.629286715045
(2020-Dec-15.12928671)
0.0003926 TDB
period 1561.748497546703
4.28
1.8501e-05
5.065e-08
d
yr
n .2305108668684565 2.7308e-09 deg/d
Q 2.74788139153116 2.1702e-08 au
  Orbit Determination Parameters
   # obs. used (total)      316  
   data-arc span      9591 days (26.26 yr)  
   first obs. used      1994-03-09  
   last obs. used      2020-06-11  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .53853  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-12 02:26:36  

Additional Information
 Earth MOID = 1.50368 au 
 Jupiter MOID = 2.26251 au 
 T_jup = 3.396 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 16.68   n/a E2021B55  

227474 (2005 WZ167)          Discovered 2005-Nov-30 by Spacewatch at Kitt Peak
Reference: 20091202/Numbers.arcLast Updated: 2009-12-04

[ show close-approach data ]
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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