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7549 Woodard (1980 TO5)
Classification: Main-belt Asteroid          SPK-ID: 2007549
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 28 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .09370053939449337 3.9661e-08  
a 2.999247625339517 1.5024e-08 au
q 2.718216505067551 1.183e-07 au
i 9.69043154473059 4.4376e-06 deg
node 225.7038577799219 2.1692e-05 deg
peri 182.032028858131 2.9712e-05 deg
M 196.2793435368025 2.1876e-05 deg
tp 2459863.315401853884
(2022-Oct-10.81540185)
0.00011837 TDB
period 1897.216584501178
5.19
1.4256e-05
3.903e-08
d
yr
n .1897516619562191 1.4258e-09 deg/d
Q 3.280278745611483 1.6432e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1792  
   data-arc span      14579 days (39.92 yr)  
   first obs. used      1980-10-08  
   last obs. used      2020-09-07  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .50052  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-13 03:27:21  

Additional Information
 Earth MOID = 1.72804 au 
 Jupiter MOID = 2.09428 au 
 T_jup = 3.225 
[ 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 13.09   n/a E2021B10  
rotation period rot_per 15.5899 h n/a LCDB (Rev. 2020-October); 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:
[Pal, A.; Szakats, R.; Kiss, C.; Bodi, A.; et al. (2019) Ap. J. Supl. Ser. 247, id.26.]

7549 Woodard           Discovered 1980 Oct. 9 by C. S. Shoemaker and E. M. Shoemaker at Palomar.
Named for Adrian Russell Woodard, youngest grandson of the discoverers.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 19980808/MPCPages.arcLast Updated: 2009-11-17

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Alternate Designations
 1980 TO5 = 1990 RF9 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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