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216258 (2006 WH1)
Classification: Apollo [NEO, PHA]          SPK-ID: 2216258
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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For accurate long-term ephemerides, please instead use our Horizons system.This orbit viewer was implemented using two-body methods, and hence should not be used for determining accurate long-term trajectories (over several years or decades) or planetary encounter circumstances.


Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 72 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .4847862965001844 8.6735e-08  
a 1.671898618920193 1.7352e-09 au
q .8613850793300998 1.4489e-07 au
i 2.632404766202749 6.106e-06 deg
node 240.4580813994431 4.723e-05 deg
peri 263.5114420949843 5.2758e-05 deg
M 147.0487567025646 5.1642e-06 deg
tp 2458877.968459022096
(2020-Jan-29.46845902)
1.1308e-05 TDB
period 789.6112646970817
2.16
1.2293e-06
3.366e-09
d
yr
n .4559205473570678 7.0977e-10 deg/d
Q 2.482412158510287 2.5764e-09 au
  Orbit Determination Parameters
   # obs. used (total)      910  
   # delay obs. used      2  
   # Doppler obs. used      0  
   data-arc span      4808 days (13.16 yr)  
   first obs. used      2006-10-23  
   last obs. used      2019-12-22  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .28793  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Mar-04 05:57:33  

Additional Information
 Earth MOID = .0235844 au 
 Jupiter MOID = 2.55228 au 
 T_jup = 4.103 
[ 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 20.3   n/a MPO527591  
rotation period rot_per 7.30 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:
[Warner, B.D. (2007) Minor Planet Bull. 34, 32-37.]

216258 (2006 WH1)          Discovered 2006-Nov-18 by La Sagra at La Sagra
Reference: 20090607/Numbers.arcLast Updated: 2009-06-08

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