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295869 (2008 WN22)
Classification: Main-belt Asteroid          SPK-ID: 2295869
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 10 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1515825492521963 9.8894e-08  
a 2.649377179774578 3.5243e-08 au
q 2.247777832933753 2.5225e-07 au
i 3.693769384687271 7.3956e-06 deg
node 291.8182624263386 0.00017053 deg
peri 250.5336401205294 0.00017393 deg
M 115.461065083256 3.1221e-05 deg
tp 2458495.318809149399
(2019-Jan-11.81880915)
0.00013708 TDB
period 1575.121696435747
4.31
3.1429e-05
8.605e-08
d
yr
n .2285537687752149 4.5604e-09 deg/d
Q 3.050976526615403 4.0585e-08 au
  Orbit Determination Parameters
   # obs. used (total)      135  
   data-arc span      5351 days (14.65 yr)  
   first obs. used      2004-11-04  
   last obs. used      2019-06-30  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .6256  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-25 16:43:06  

Additional Information
 Earth MOID = 1.25379 au 
 Jupiter MOID = 1.93437 au 
 T_jup = 3.372 
[ 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 16.7   n/a MPO476299  

295869 (2008 WN22)          Discovered 2008-Nov-18 by Spacewatch at Kitt Peak
Reference: 20110912/Numbers.arcLast Updated: 2011-09-14

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