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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 2459396.5 (2021-Jul-01.0) TDB
Reference: JPL 73 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .4851062422573897 8.7124e-08  
a 1.671477198790414 1.74e-09 au
q .8606331758662882 1.4567e-07 au
i 2.632197127422479 6.1027e-06 deg
node 240.3645695581344 4.7294e-05 deg
peri 263.644175977697 5.2794e-05 deg
M 236.3343627739405 5.0913e-06 deg
tp 2459667.641285465379
(2022-Mar-29.14128547)
1.113e-05 TDB
period 789.3127384214637
2.16
1.2325e-06
3.374e-09
d
yr
n .4560929812433527 7.1218e-10 deg/d
Q 2.482321221714539 2.5841e-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.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .28793  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 23:54:05  

Additional Information
 Earth MOID = .0235938 au 
 Jupiter MOID = 2.55197 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 20.27   n/a MPCxxxxx  
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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