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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 2459000.5 (2020-May-31.0) TDB
Reference: JPL 69 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .4847077560045105 9.2417e-08  
a 1.671553770303772 1.9872e-09 au
q .8613386932589518 1.5415e-07 au
i 2.633745704796477 7.4693e-06 deg
node 240.5007024288665 5.9186e-05 deg
peri 263.4361164749001 6.4792e-05 deg
M 55.92119131301416 5.4036e-06 deg
tp 2458877.882383989814
(2020-Jan-29.38238399)
1.18e-05 TDB
period 789.3669774770003
2.16
1.4076e-06
3.854e-09
d
yr
n .4560616421409512 8.1328e-10 deg/d
Q 2.481768847348593 2.9504e-09 au
  Orbit Determination Parameters
   # obs. used (total)      874  
   # 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      .28537  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-18 05:07:26  

Additional Information
 Earth MOID = .0235639 au 
 Jupiter MOID = 2.55362 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 20.2   n/a MPO157892  
rotation period rot_per 7.30 h n/a LCDB (Rev. 2019-August); 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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