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JPL Small-Body Database Browser
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305565 (2008 WH42)
Classification: Main-belt Asteroid          SPK-ID: 2305565
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 10 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .04831562316604231 1.0831e-07  
a 2.19650196716479 2.8786e-08 au
q 2.090376605835785 2.5329e-07 au
i 6.846927005787198 5.7098e-06 deg
node 52.24020349364969 6.5821e-05 deg
peri 276.2336611255741 8.8849e-05 deg
M 163.4713393241931 6.294e-05 deg
tp 2458060.573129199280
(2017-Nov-03.07312920)
0.00020371 TDB
period 1189.038239313507
3.26
2.3374e-05
6.399e-08
d
yr
n .3027657043291111 5.9518e-09 deg/d
Q 2.302627328493794 3.0177e-08 au
  Orbit Determination Parameters
   # obs. used (total)      134  
   data-arc span      6341 days (17.36 yr)  
   first obs. used      2001-08-25  
   last obs. used      2019-01-04  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .62331  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-14 11:35:02  

Additional Information
 Earth MOID = 1.09167 au 
 Jupiter MOID = 2.82131 au 
 T_jup = 3.658 
[ 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 17.5   n/a MPO368086  

305565 (2008 WH42)          Discovered 2008-Nov-17 by Spacewatch at Kitt Peak
Reference: 20111110/Numbers.arcLast Updated: 2011-11-14

[ show close-approach data ]
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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