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227744 (2006 HW22)
Classification: Main-belt Asteroid          SPK-ID: 2227744
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 11 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1157284620198763 4.5726e-08  
a 3.167322216973961 3.1124e-08 au
q 2.80077288808218 1.5402e-07 au
i 10.93338191403204 7.7612e-06 deg
node 52.34584896463127 2.7417e-05 deg
peri 85.22624450487518 4.5952e-05 deg
M 278.6272675249099 3.5898e-05 deg
tp 2459665.885873617965
(2022-Mar-27.38587362)
0.00020704 TDB
period 2058.907319521988
5.64
3.0349e-05
8.309e-08
d
yr
n .1748500268013912 2.5773e-09 deg/d
Q 3.533871545865742 3.4726e-08 au
  Orbit Determination Parameters
   # obs. used (total)      255  
   data-arc span      10250 days (28.06 yr)  
   first obs. used      1992-11-24  
   last obs. used      2020-12-17  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .55903  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-14 00:40:59  

Additional Information
 Earth MOID = 1.84162 au 
 Jupiter MOID = 1.6262 au 
 T_jup = 3.165 
[ 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 15.71   n/a MPCxxxxx  

227744 (2006 HW22)          Discovered 2006-Apr-20 by Spacewatch at Kitt Peak
Reference: 20091202/Numbers.arcLast Updated: 2009-12-04

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