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JPL Small-Body Database Browser
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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.


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Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 57 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .4852194325391838 9.7953e-08  
a 1.673465790976773 1.9491e-09 au
q .8614676695052866 1.6382e-07 au
i 2.642606640121261 1.0302e-05 deg
node 240.6188777656668 6.0983e-05 deg
peri 263.2562260813258 6.5934e-05 deg
M 233.7304282260308 9.7962e-06 deg
tp 2458877.844713472987
(2020-Jan-29.34471347)
2.1652e-05 TDB
period 790.721750676423
2.16
1.3815e-06
3.782e-09
d
yr
n .4552802546433533 7.9542e-10 deg/d
Q 2.485463912448259 2.8949e-09 au
  Orbit Determination Parameters
   # obs. used (total)      647  
   data-arc span      4790 days (13.11 yr)  
   first obs. used      2006-10-23  
   last obs. used      2019-12-04  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .36956  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Dec-04 17:02:24  

Additional Information
 Earth MOID = .0235277 au 
 Jupiter MOID = 2.5517 au 
 T_jup = 4.100 
[ 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 20.2   n/a MPO157892  
rotation period rot_per 7.30 h n/a LCDB (Rev. 2019-January); 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

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