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21242 (1995 WZ41)
Classification: Main-belt Asteroid          SPK-ID: 2021242
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2457600.5 (2016-Jul-31.0) TDB
Reference: JPL 9 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2826211062434194 7.4209e-08  
a 2.340007445657125 1.7246e-08 au
q 1.67867195274767 1.6903e-07 au
i 23.43418783719887 9.9782e-06 deg
node 236.9100443130207 1.7258e-05 deg
peri 149.1381280192431 2.2447e-05 deg
M 304.1930250429807 1.9755e-05 deg
tp 2457803.179706659820
(2017-Feb-18.67970666)
7.3414e-05 JED
period 1307.447580767997
3.58
1.4454e-05
3.957e-08
d
yr
n .275345646965468 3.0439e-09 deg/d
Q 3.00134293856658 2.212e-08 au
  Orbit Determination Parameters
   # obs. used (total)      530  
   data-arc span      14238 days (38.98 yr)  
   first obs. used      1976-05-30  
   last obs. used      2015-05-24  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .56183  
   data source      ORB  
   producer      Otto Matic  
   solution date      2015-Jun-04 16:39:04  

Additional Information
 Earth MOID = .712777 au 
 Jupiter MOID = 2.5084 au 
 T_jup = 3.404 
[ 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 13.6 mag n/a MPO337437  

21242 (1995 WZ41)          Discovered 1995-Nov-25 by Ueda, S., Kaneda, H. at Kushiro
Reference: 20010208/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1995 WZ41 = 1998 MR5 
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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