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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 2456800.5 (2014-May-23.0) TDB
Reference: JPL 7 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1264227771655961 1.5041e-07  
a 2.890977905526938 4.0222e-08 AU
q 2.525492449985844 4.231e-07 AU
i 1.068105231273186 9.3134e-06 deg
node 137.3413161124259 0.00042917 deg
peri 46.3376521650198 0.00042949 deg
M 222.5635275842973 2.8871e-05 deg
tp 2457485.933118267621
(2016-Apr-07.43311827)
0.00015114 JED
period 1795.418044709293
4.92
3.747e-05
1.026e-07
d
yr
n .2005104053960256 4.1846e-09 deg/d
Q 3.256463361068032 4.5307e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      714  
   data-arc span      6628 days (18.15 yr)  
   first obs. used      1995-11-28  
   last obs. used      2014-01-20  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .60289  
   data source      ORB  
   producer      Otto Matic  
   solution date      2014-Feb-19 18:34:25  

Additional Information
 Earth MOID = 1.52825 AU 
 T_jup = 3.278 
[ 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 14.2 mag n/a MPO233646  

22420 (1995 WL42)          Discovered 1995-Nov-28 by Beijing Schmidt CCD Asteroid Program at Xinglong (327)
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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