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(2001 WH1)
Classification: Apollo [NEO, PHA]          SPK-ID: 3092515
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2452245.5 (2001-Dec-02.0) TDB
Reference: JPL 6 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .7999790989448126 0.00065649  
a 2.460774805707156 0.0069297 au
q .4922063939314492 0.0002294 au
i 15.56557625553386 0.017143 deg
node 68.42567903965849 0.00024551 deg
peri 107.1994144857524 0.001085 deg
M 346.0345636491436 0.064445 deg
tp 2452300.196337090141
(2002-Jan-25.69633709)
0.02136 TDB
period 1409.958189472782
3.86
5.9558
0.01631
d
yr
n .2553267201026811 0.0010785 deg/d
Q 4.429343217482863 0.012473 au
  Orbit Determination Parameters
   # obs. used (total)      103  
   data-arc span      24 days  
   first obs. used      2001-11-17  
   last obs. used      2001-12-11  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      8  
   norm. resid. RMS      .49871  
   source      ORB  
   producer      Otto Matic  
   solution date      2017-Apr-06 09:15:49  

Additional Information
 Earth MOID = .0442102 au 
 Jupiter MOID = 1.21711 au 
 T_jup = 2.910 
[ 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 20.4   n/a MPO23929  
rotation period rot_per 8. h n/a LCDB (Rev. 2020-October); Warner et al., 2009 lower-limit; Result based on less than full coverage, so that the period may be wrong by 30 percent or so.
Published Reference List:
[Hergenrother, C.W.; Whitely, R.J. (2011) Icarus 214, 194-209.]

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