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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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Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 73 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .4847862968251599 8.6735e-08  
a 1.671898619309699 1.7351e-09 au
q .861385078987452 1.4489e-07 au
i 2.632404772032819 6.106e-06 deg
node 240.4580818840988 4.723e-05 deg
peri 263.5114417702282 5.2758e-05 deg
M 147.0487566201286 5.1641e-06 deg
tp 2458877.968459090197
(2020-Jan-29.46845909)
1.1308e-05 TDB
period 789.6112649730173
2.16
1.2292e-06
3.365e-09
d
yr
n .4559205471977428 7.0974e-10 deg/d
Q 2.482412159631945 2.5763e-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 = .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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