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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 10 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .126492136822567 1.0734e-07  
a 2.891181712227344 3.3105e-08 AU
q 2.525469959505379 3.1253e-07 AU
i 1.068118463233895 6.9982e-06 deg
node 137.3421320718086 0.00036448 deg
peri 46.28323004125422 0.00036499 deg
M 262.7322149624321 2.8638e-05 deg
tp 2457485.652233019999
(2016-Apr-07.15223302)
0.00014789 JED
period 1795.607906767308
4.92
3.0841e-05
8.444e-08
d
yr
n .2004892040423902 3.4435e-09 deg/d
Q 3.256893464949309 3.7293e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      766  
   data-arc span      6990 days (19.14 yr)  
   first obs. used      1995-11-28  
   last obs. used      2015-01-17  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .5496  
   data source      ORB  
   producer      Otto Matic  
   solution date      2015-Feb-04 14:02:08  

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 (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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