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(2009 WY7)
Classification: Aten [NEO]          SPK-ID: 3477942
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 15 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .6088751201516863 7.3549e-07  
a .6497103766816533 6.0429e-09 au
q .2541178930158143 4.7593e-07 au
i 4.015394624940445 6.1984e-05 deg
node 64.0823986600827 5.5788e-05 deg
peri 172.3190694999146 0.0001153 deg
M 239.984765525419 0.00037334 deg
tp 2459264.269352696528
(2021-Feb-18.76935270)
0.00019749 TDB
period 191.2837738579968
0.52
2.6687e-06
7.307e-09
d
yr
n 1.882020585119012 2.6257e-08 deg/d
Q 1.045302860347492 9.7222e-09 au
  Orbit Determination Parameters
   # obs. used (total)      144  
   data-arc span      4024 days (11.02 yr)  
   first obs. used      2009-11-19  
   last obs. used      2020-11-25  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      1  
   norm. resid. RMS      .38756  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-26 05:20:44  

Additional Information
 Earth MOID = .0099323 au 
 Jupiter MOID = 3.9582 au 
 T_jup = 8.568 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Close-Approach Data ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 24.1   n/a MPO167786  
rotation period rot_per 0.21 h n/a LCDB (Rev. 2020-October); Warner et al., 2009 Incomplete or inconclusive result.
Published Reference List:
[Ryan, W. UNPUBLISHED]

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