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JPL Small-Body Database Browser
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447297 (2005 WM78)
Classification: Main-belt Asteroid          SPK-ID: 2447297
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 11 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .07289434768739189 6.311e-08  
a 3.082130009727989 5.7065e-08 au
q 2.857460153181133 2.3197e-07 au
i 13.38272333705752 9.1844e-06 deg
node 68.69035842112378 2.4479e-05 deg
peri 246.9593312848858 7.6715e-05 deg
M 289.3202102749721 6.912e-05 deg
tp 2458988.532057006094
(2020-May-19.03205701)
0.00037626 TDB
period 1976.400058144608
5.41
5.4889e-05
1.503e-07
d
yr
n .1821493571184968 5.0587e-09 deg/d
Q 3.306799866274846 6.1225e-08 au
  Orbit Determination Parameters
   # obs. used (total)      141  
   data-arc span      4991 days (13.66 yr)  
   first obs. used      2005-11-25  
   last obs. used      2019-07-26  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .56345  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Sep-24 07:49:00  

Additional Information
 Earth MOID = 1.87392 au 
 Jupiter MOID = 1.89999 au 
 T_jup = 3.182 
[ 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 15.8   n/a MPO437739  

447297 (2005 WM78)          Discovered 2005-Nov-25 by Spacewatch at Kitt Peak
Reference: Last Updated: 2015-10-28

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