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242493 (2004 WO12)
Classification: Main-belt Asteroid          SPK-ID: 2242493
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2457000.5 (2014-Dec-09.0) TDB
Reference: JPL 4 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2147341103455496 9.3939e-08  
a 3.066214747967593 1.2225e-07 AU
q 2.407793851934368 3.1402e-07 AU
i 16.3333697731327 1.9624e-05 deg
node 218.5893657194019 3.6316e-05 deg
peri 267.0663183230806 7.6522e-05 deg
M 273.9445461350844 8.1554e-05 deg
tp 2457469.289826101886
(2016-Mar-21.78982610)
0.00046773 JED
period 1961.111467282416
5.37
0.00011729
3.211e-07
d
yr
n .1835693717598139 1.0979e-08 deg/d
Q 3.724635644000817 1.4851e-07 AU
  Orbit Determination Parameters
   # obs. used (total)      157  
   data-arc span      5423 days (14.85 yr)  
   first obs. used      1999-12-16  
   last obs. used      2014-10-21  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .66017  
   data source      ORB  
   producer      Otto Matic  
   solution date      2014-Nov-10 17:56:25  

Additional Information
 Earth MOID = 1.48891 AU 
 T_jup = 3.136 
[ 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 15.0 mag n/a MPO310620  

242493 (2004 WO12)          Discovered 2004-Nov-22 by McNaught, R. H. at Siding Spring (413)
Reference: 20100626/Numbers.arcLast Updated: 2010-06-28

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