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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 2457000.5 (2014-Dec-09.0) TDB
Reference: JPL 12 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1264921378992876 1.0562e-07  
a 2.891181712463779 3.2801e-08 AU
q 2.525469956598912 3.0827e-07 AU
i 1.06811789548221 6.8569e-06 deg
node 137.3421067980786 0.00035855 deg
peri 46.28325521351602 0.00035908 deg
M 262.7322150291477 2.863e-05 deg
tp 2457485.652232746747
(2016-Apr-07.15223275)
0.00014783 JED
period 1795.60790698757
4.92
3.0557e-05
8.366e-08
d
yr
n .2004892040177968 3.4119e-09 deg/d
Q 3.256893468328646 3.695e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      804  
   data-arc span      7061 days (19.33 yr)  
   first obs. used      1995-11-28  
   last obs. used      2015-03-29  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .54057  
   data source      ORB  
   producer      Otto Matic  
   solution date      2015-Apr-07 17:11:57  

Additional Information
 Earth MOID = 1.52898 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
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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