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JPL Small-Body Database Browser
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136220 (2003 WO78)
Classification: Main-belt Asteroid          SPK-ID: 2136220
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 14 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1653102300287206 5.893e-08  
a 2.330550208347417 1.1809e-08 au
q 1.945286417312023 1.3724e-07 au
i 3.269838745268395 5.7562e-06 deg
node 321.1375493153585 0.00010261 deg
peri 19.45609982968137 0.00010372 deg
M 289.774937762042 1.6586e-05 deg
tp 2459253.998710384816
(2021-Feb-08.49871038)
6.0476e-05 TDB
period 1299.529439066932
3.56
9.877e-06
2.704e-08
d
yr
n .2770233510511941 2.1055e-09 deg/d
Q 2.715813999382811 1.3761e-08 au
  Orbit Determination Parameters
   # obs. used (total)      413  
   data-arc span      7155 days (19.59 yr)  
   first obs. used      1999-08-07  
   last obs. used      2019-03-10  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .56609  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-13 12:43:06  

Additional Information
 Earth MOID = .936992 au 
 Jupiter MOID = 2.66625 au 
 T_jup = 3.551 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 16.6   n/a MPO266451  
rotation period rot_per 5.565 h n/a LCDB (Rev. 2019-August); Warner et al., 2009 Result based on less than full coverage, so that the period may be wrong by 30 percent or so.
Published Reference List:
[Waszczak, A.; Chang, C.-K.; Ofeck, E.O.; Laher, F.; et al. (2015) Astron. J. 150, A75.]

136220 (2003 WO78)          Discovered 2003-Nov-20 by LINEAR at Socorro
Reference: 20060907/Numbers.arcLast Updated: 2006-09-10
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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