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359275 (2009 HB2)
Classification: Main-belt Asteroid          SPK-ID: 2359275
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbit Diagram
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Note: This Java-based orbit viewer will eventually be retired.

Note: Make sure you have Java enabled on your browser to see the applet. This applet is provided as a 3D orbit visualization tool. The applet 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. For accurate long-term ephemerides, please instead use our Horizons system.

Note: If the applet is not working, here are some notes that might help.
Orbit Viewer

Additional Notes: the orbits shown in the applet are color coded. The planets are white lines, and the asteroid/comet is a blue line. The bright white line indicates the portion of the orbit that is above the ecliptic plane, and the darker portion is below the ecliptic plane. Likewise for the asteroid/comet orbit, the light blue indicates the portion above the ecliptic plane, and the dark blue the portion below the ecliptic plane.

Orbit Viewer applet originally written and kindly provided by Osamu Ajiki (AstroArts), and further modified by Ron Baalke (JPL).


Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 15 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2270339842884488 6.0435e-08  
a 2.637222172077179 4.0215e-08 au
q 2.03848311489666 1.542e-07 au
i 11.93781458284588 5.78e-06 deg
node 106.710647814307 3.3222e-05 deg
peri 115.593741741366 3.728e-05 deg
M 202.1245133783729 2.607e-05 deg
tp 2459686.510409670617
(2022-Apr-17.01040967)
0.0001256 TDB
period 1564.294449798333
4.28
3.5781e-05
9.796e-08
d
yr
n .2301357011439955 5.264e-09 deg/d
Q 3.235961229257698 4.9345e-08 au
  Orbit Determination Parameters
   # obs. used (total)      147  
   data-arc span      4360 days (11.94 yr)  
   first obs. used      2007-12-19  
   last obs. used      2019-11-26  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .65775  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-11 16:22:33  

Additional Information
 Earth MOID = 1.06137 au 
 Jupiter MOID = 1.87476 au 
 T_jup = 3.330 
[ 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 MPO455593  

359275 (2009 HB2)          Discovered 2009-Jan-08 by Spacewatch at Kitt Peak
Reference: 20130327/Numbers.arcLast Updated: 2013-03-29

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Close-Approach Data   ...sorted by Date/Time (TDB)
Date/Time (TDB) Time Uncertainty
(days_HH:MM)
Body Nominal Distance (au) Minimum Distance (au) Maximum Distance (au) V-relative (km/s) V-infinity (km/s) JD (TDB) Time Uncertainty (minutes) Semi-major axis (km) Semi-minor axis (km) range-LOV angle (deg) N-sigma BP Orbit Ref. Reference Modified
1917-Apr-05 01:10 00:07 Jupiter 1.8748805252102 1.87487941340198 1.87488163700808 1.58346770939389 1.26642083415022 2421323.548450228 6.84686586217144 780.26169356523 302.52552832318 -8.17975589258584 237784.676637228 T 15 CATAB v2.0f-lin.ifort 2020-Nov-11 16:22:33 2020-Nov-11 16:22
1964-Mar-16 23:33 00:04 Jupiter 1.88730361706592 1.88730280085076 1.88730443339232 1.08161671649731 0.521818004648771 2438471.481224737 3.67588421543446 3437.92302558332 1079.00147543974 -23.0166157712659 824633.758022366 T 15 CATAB v2.0f-lin.ifort 2020-Nov-11 16:22:33 2020-Nov-11 16:22
2011-Feb-20 21:24 < 00:01 Jupiter 1.97207805764544 1.97207739971365 1.97207871557599 1.41007227123512 1.06267991785723 2455613.391335838 0.42269164966444 304.843483585683 123.664011911991 35.8674910605708 1258513.31461877 T 15 CATAB v2.0f-lin.ifort 2020-Nov-11 16:22:33 2020-Nov-11 16:22
2071-Nov-21 02:29 00:04 Jupiter 1.90269332939362 1.90269236817035 1.9026942906263 2.26299476321796 2.05689201103751 2477801.603151855 3.78011247072796 307.124664217288 67.6182269166684 86.1710578379079 724967.992868657 T 15 CATAB v2.0f-lin.ifort 2020-Nov-11 16:22:33 2020-Nov-11 16:22
2118-Nov-08 17:24 00:07 Jupiter 1.86338440958697 1.86338370514016 1.86338511405857 1.62450359473329 1.31525254135018 2494955.225293098 7.15559724818028 859.26554684127 215.167969819575 -40.1386621118467 545098.293590291 T 15 CATAB v2.0f-lin.ifort 2020-Nov-11 16:22:33 2020-Nov-11 16:22
2165-Oct-20 22:30 00:11 Jupiter 1.90994384929388 1.90994051286903 1.9099471878737 1.19359140144695 0.733280155852325 2512103.437463901 10.8770354347549 4603.08025851707 729.88456209824 -71.4492109404295 927969.130150501 T 15 CATAB v2.0f-lin.ifort 2020-Nov-11 16:22:33 2020-Nov-11 16:22
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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