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180302 (2003 WR139)
Classification: Main-belt Asteroid          SPK-ID: 2180302
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 23 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .167232113409618 3.1694e-08  
a 2.332568895237816 1.2766e-08 au
q 1.942488469213658 7.5501e-08 au
i 4.546513647093217 3.4434e-06 deg
node 248.5198895251722 5.4955e-05 deg
peri 194.3907456357196 5.7241e-05 deg
M 278.7019991373257 1.8723e-05 deg
tp 2459494.351229683175
(2021-Oct-06.85122968)
6.9396e-05 TDB
period 1301.218253381578
3.56
1.0682e-05
2.925e-08
d
yr
n .2766638102904258 2.2713e-09 deg/d
Q 2.722649321261973 1.4901e-08 au
  Orbit Determination Parameters
   # obs. used (total)      564  
   data-arc span      15345 days (42.01 yr)  
   first obs. used      1978-11-29  
   last obs. used      2020-12-03  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .5319  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 21:25:57  

Additional Information
 Earth MOID = .958419 au 
 Jupiter MOID = 2.50458 au 
 T_jup = 3.547 
[ 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 16.44   n/a E2021B55  

180302 (2003 WR139)          Discovered 2003-Nov-21 by LINEAR at Socorro
Reference: 20080321/Numbers.arcLast Updated: 2008-03-26

[ show close-approach data ]
Alternate Designations
 2003 WR139 = 1978 WY7 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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