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JPL Small-Body Database Browser
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305571 (2008 WZ139)
Classification: Main-belt Asteroid          SPK-ID: 2305571
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 14 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .128518592923347 4.4801e-08  
a 2.419541272888446 2.1703e-08 au
q 2.108585232976859 1.0762e-07 au
i 1.676280067396245 5.3402e-06 deg
node 268.8017583007729 0.00019313 deg
peri 216.5408136364219 0.00019488 deg
M 270.2925043647976 2.9596e-05 deg
tp 2458943.050188542813
(2020-Apr-03.55018854)
0.00011567 TDB
period 1374.668493443275
3.76
1.8496e-05
5.064e-08
d
yr
n .2618813202725485 3.5236e-09 deg/d
Q 2.730497312800033 2.4493e-08 au
  Orbit Determination Parameters
   # obs. used (total)      182  
   data-arc span      7412 days (20.29 yr)  
   first obs. used      1998-04-28  
   last obs. used      2018-08-13  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .61388  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-14 13:03:58  

Additional Information
 Earth MOID = 1.12464 au 
 Jupiter MOID = 2.32722 au 
 T_jup = 3.502 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 17.3   n/a MPO413264  

305571 (2008 WZ139)          Discovered 2008-Nov-24 by Mt. Lemmon Survey at Mount Lemmon
Reference: 20111110/Numbers.arcLast Updated: 2011-11-14

[ show close-approach data ]
Alternate Designations
 2008 WZ139 = 2004 XC57 = 2009 DH71 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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