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26334 Melimcdowell (1998 WD15)
Classification: Main-belt Asteroid          SPK-ID: 2026334
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 21 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .07242909431833987 3.8266e-08  
a 2.922614580217228 1.5398e-08 au
q 2.710932253130519 1.128e-07 au
i 3.083165483758265 4.0378e-06 deg
node 130.4671965095701 7.8992e-05 deg
peri 301.54841015518 8.4495e-05 deg
M 97.40599429784427 2.9311e-05 deg
tp 2458506.713821131953
(2019-Jan-23.21382113)
0.00014835 TDB
period 1824.970071646104
5.00
1.4422e-05
3.949e-08
d
yr
n .1972635089162223 1.5589e-09 deg/d
Q 3.134296907303937 1.6513e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1071  
   data-arc span      9108 days (24.94 yr)  
   first obs. used      1995-02-26  
   last obs. used      2020-02-03  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .53685  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-23 00:43:01  

Additional Information
 Earth MOID = 1.72723 au 
 Jupiter MOID = 2.05615 au 
 T_jup = 3.273 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456725.5 (2014-Mar-09.0) TDB
Reference: JPL 21 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .07116369547792495 3.8201e-08  
q 2.71606057996602 1.1249e-07 au
tp 2456691.222918480884
(2014-Feb-02.72291848)
0.0001513 TDB
node 130.4873693801787 7.9017e-05 deg
peri 303.7072787157255 8.4718e-05 deg
i 3.081195306308429 4.0375e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      1071  
   data-arc span      9108 days (24.94 yr)  
   first obs. used      1995-02-26  
   last obs. used      2020-02-03  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .53685  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-23 00:43:01  

Additional Information
 Jupiter MOID = 2.05615 au 
 T_jup = 3.273 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.459288286646511E-15 -4.262523165944348E-15 -9.005115758695922E-13 -3.46015089080568E-15 -2.116283581448387E-13 -9.172766562418325E-16
q -4.262523165944348E-15 1.265503856222929E-14 2.431098479357198E-12 1.018852320880864E-14 5.771184064501438E-13 2.79513224034869E-15
tp -9.005115758695922E-13 2.431098479357198E-12 2.289284221988695E-8 2.162572170386529E-11 4.64461058064859E-9 4.39846076666216E-13
node -3.46015089080568E-15 1.018852320880864E-14 2.162572170386529E-11 6.243695881913802E-9 -6.230057261969396E-9 3.37466002354889E-12
peri -2.116283581448387E-13 5.771184064501438E-13 4.64461058064859E-9 -6.230057261969396E-9 7.17708318177889E-9 -3.257619255720786E-12
i -9.172766562418325E-16 2.79513224034869E-15 4.39846076666216E-13 3.37466002354889E-12 -3.257619255720786E-12 1.630146040752492E-11

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

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 14.6   n/a MPO337482  

26334 Melimcdowell           Discovered 1998 Nov. 21 by the Lincoln Laboratory Near-Earth Asteroid Research Team at Socorro.
Melissa Severn McDowell (b. 1992) was awarded best of category and first place in the 2010 Intel International Science and Engineering Fair for her animal-sciences team project. She attends the Saint Joseph's Academy, Baton Rouge, Louisiana, U.S.A.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20110319/MPCPages.arcLast Updated: 2011-03-23

Alternate Designations
 1998 WD15 = 1995 DO11 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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