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JPL Small-Body Database Browser
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266037 (2006 HW18)
Classification: Main-belt Asteroid          SPK-ID: 2266037
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 12 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .174582755708137 5.6636e-08  
a 3.059926576177778 4.0683e-08 au
q 2.525716162244097 1.8183e-07 au
i 2.239914185797158 6.3538e-06 deg
node 111.3921124880971 0.00017298 deg
peri 7.272400491764299 0.00017412 deg
M 217.5396692206912 1.9894e-05 deg
tp 2459374.171115175077
(2021-Jun-08.67111517)
0.00011568 TDB
period 1955.081810770868
5.35
3.899e-05
1.067e-07
d
yr
n .1841355169981638 3.6722e-09 deg/d
Q 3.594136990111459 4.7785e-08 au
  Orbit Determination Parameters
   # obs. used (total)      215  
   data-arc span      7203 days (19.72 yr)  
   first obs. used      2000-01-05  
   last obs. used      2019-09-25  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .57887  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Nov-08 04:02:39  

Additional Information
 Earth MOID = 1.54218 au 
 Jupiter MOID = 1.50073 au 
 T_jup = 3.209 
[ 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 16.4   n/a MPO360372  

266037 (2006 HW18)          Discovered 2006-Apr-18 by Spacewatch at Kitt Peak
Reference: 20110218/Numbers.arcLast Updated: 2011-02-22

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