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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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For accurate long-term ephemerides, please instead use our Horizons system.This orbit viewer 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.


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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 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457304.5 (2015-Oct-09.0) TDB
Reference: JPL 15 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2271560534503496 6.0409e-08  
q 2.038002948041608 1.5415e-07 au
tp 2456558.974653151493
(2013-Sep-23.47465315)
7.9782e-05 TDB
node 106.7450985022232 3.3242e-05 deg
peri 115.6479270856948 3.7299e-05 deg
i 11.93477473594818 5.7781e-06 deg
  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
 Jupiter MOID = 1.87476 au 
 T_jup = 3.330 
Orbit Covariance (6×6)
  e q tp node peri i
e 3.649218265486733E-15 -9.132806629462876E-15 -2.960706599813742E-13 1.903545148110303E-14 -3.208198025919598E-14 8.304428455869188E-15
q -9.132806629462876E-15 2.376107567200528E-14 1.705782489794235E-12 -5.926622808170438E-14 3.580465432511247E-13 -1.731240090135915E-14
tp -2.960706599813742E-13 1.705782489794235E-12 6.365196732042926E-9 -6.402749163956038E-11 1.403533794128259E-9 4.880472340984343E-12
node 1.903545148110303E-14 -5.926622808170438E-14 -6.402749163956038E-11 1.104999058963587E-9 -1.094032055069886E-9 -1.427443275261075E-11
peri -3.208198025919598E-14 3.580465432511247E-13 1.403533794128259E-9 -1.094032055069886E-9 1.391219141076438E-9 1.539147882898642E-11
i 8.304428455869188E-15 -1.731240090135915E-14 4.880472340984343E-12 -1.427443275261075E-11 1.539147882898642E-11 3.338676988370532E-11

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

[ hide close-approach data ]
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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