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22420 (1995 WL42)
Classification: Main-belt Asteroid          SPK-ID: 2022420
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2457400.5 (2016-Jan-13.0) TDB
Reference: JPL 15 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1267438690016825 1.0472e-07  
a 2.893738023976525 3.2227e-08 au
q 2.526974470940456 3.0647e-07 au
i 1.068797874549026 6.798e-06 deg
node 137.3353115804209 0.00035407 deg
peri 45.86920131839986 0.00035461 deg
M 343.2736719427608 2.8609e-05 deg
tp 2457484.038246120351
(2016-Apr-05.53824612)
0.00014374 JED
period 1797.989881605265
4.92
3.0036e-05
8.223e-08
d
yr
n .200223596185418 3.3448e-09 deg/d
Q 3.260501577012593 3.6312e-08 au
  Orbit Determination Parameters
   # obs. used (total)      839  
   data-arc span      7325 days (20.05 yr)  
   first obs. used      1995-11-28  
   last obs. used      2015-12-18  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .53395  
   data source      ORB  
   producer      Otto Matic  
   solution date      2016-Jan-04 13:50:19  

Additional Information
 Earth MOID = 1.52939 au 
 Jupiter MOID = 1.69926 au 
 T_jup = 3.277 
[ 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 MPO358841  

22420 (1995 WL42)          Discovered 1995-Nov-28 by Beijing Schmidt CCD Asteroid Program at Xinglong
Reference: 20010309/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1995 WL42 = 1996 DZ3 = 1998 SH6 
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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