Skip Page Navigation
NASA JPL Caltech
NASA Logo - Jet Propulsion Laboratory + View the NASA Portal
+ Center for Near-Earth Object Studies
JPL Home Earth Solar System Stars & Galaxies Technology
JPL Solar System Dynamics
BODIES ORBITS EPHEMERIDES TOOLS PHYSICAL DATA DISCOVERY FAQ SITE MAP
JPL Small-Body Database Browser
Search: [ help ]  
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 2459000.5 (2020-May-31.0) TDB
Reference: JPL 12 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .174688815737527 5.664e-08  
a 3.060607536610811 4.0559e-08 au
q 2.525953630602919 1.819e-07 au
i 2.239900237071077 6.3538e-06 deg
node 111.3909372221862 0.00017296 deg
peri 7.179129482268189 0.0001741 deg
M 291.3036794348329 2.0565e-05 deg
tp 2459373.699340503329
(2021-Jun-08.19934050)
0.00011562 TDB
period 1955.734477128928
5.35
3.8876e-05
1.064e-07
d
yr
n .1840740674206909 3.659e-09 deg/d
Q 3.595261442618703 4.7644e-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 = 1.54211 au 
 Jupiter MOID = 1.49863 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 16.3   n/a MPO494438  

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 ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov 2020-Aug-15 18:31 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin