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233942 (2009 WH6)
Classification: Main-belt Asteroid          SPK-ID: 2233942
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ hide orbit diagram ]

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.


Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 20 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .0985266733536095 4.8229e-08  
a 3.019666742294539 3.9356e-08 au
q 2.722149023539727 1.5023e-07 au
i 7.655983782667416 5.3145e-06 deg
node 210.0777622510676 3.4842e-05 deg
peri 281.8671724922761 4.5793e-05 deg
M 303.8976226367729 2.962e-05 deg
tp 2459299.186583245897
(2021-Mar-25.68658325)
0.00016023 TDB
period 1916.624125789768
5.25
3.747e-05
1.026e-07
d
yr
n .1878302558941533 3.6721e-09 deg/d
Q 3.317184461049351 4.3234e-08 au
  Orbit Determination Parameters
   # obs. used (total)      295  
   data-arc span      6266 days (17.16 yr)  
   first obs. used      2003-09-20  
   last obs. used      2020-11-15  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .5482  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Dec-18 00:04:53  

Additional Information
 Earth MOID = 1.74943 au 
 Jupiter MOID = 1.78207 au 
 T_jup = 3.226 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457663.5 (2016-Oct-02.0) TDB
Reference: JPL 20 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .09834336100850814 4.8845e-08  
q 2.724585408520884 1.527e-07 au
tp 2457388.788627163660
(2016-Jan-01.28862716)
0.00014643 TDB
node 210.0767738305373 3.4842e-05 deg
peri 283.003998853703 4.5613e-05 deg
i 7.653629621750283 5.3149e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      295  
   data-arc span      6266 days (17.16 yr)  
   first obs. used      2003-09-20  
   last obs. used      2020-11-15  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .5482  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Dec-18 00:04:53  

Additional Information
 Jupiter MOID = 1.78207 au 
 T_jup = 3.226 
Orbit Covariance (6×6)
  e q tp node peri i
e 2.38578878642598E-15 -7.253025031808188E-15 2.243763710617095E-12 -1.538235422029548E-14 5.301482691847506E-13 -3.90005608445462E-15
q -7.253025031808188E-15 2.331871557004049E-14 -5.655087637600287E-12 3.976290338130949E-14 -1.349901815762205E-12 1.339687971509911E-14
tp 2.243763710617095E-12 -5.655087637600287E-12 2.14406496027289E-8 -5.018560848947097E-11 4.326821986250557E-9 -3.570230094565893E-12
node -1.538235422029548E-14 3.976290338130949E-14 -5.018560848947097E-11 1.213961088028522E-9 -1.213184284485902E-9 -2.28248258428275E-11
peri 5.301482691847506E-13 -1.349901815762205E-12 4.326821986250557E-9 -1.213184284485902E-9 2.080588797446515E-9 2.187775005032412E-11
i -3.90005608445462E-15 1.339687971509911E-14 -3.570230094565893E-12 -2.28248258428275E-11 2.187775005032412E-11 2.824849622006284E-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 15.7   n/a MPO413119  

233942 (2009 WH6)          Discovered 2009-Nov-18 by Lowe, A. at Mayhill
Reference: 20100228/Numbers.arcLast Updated: 2010-03-03

[ 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
1903-Aug-20 09:06 00:07 Jupiter 1.80425107864392 1.80425043528963 1.80425172200693 2.7124222975957 2.53343956821091 2416346.879083652 7.29430261386703 437.17300070546 19.6660367603012 -83.2518214477662 1835684.77936897 T 20 CATAB v2.0f-lin.ifort 2020-Dec-18 00:04:54 2020-Dec-18 00:04
1950-Sep-25 08:55 00:04 Jupiter 1.80585089824172 1.80585030601075 1.80585149047392 2.43878953488795 2.23821525266973 2433549.871451994 4.33013482731821 229.254686550453 19.2960048695694 -76.3887888234274 1804091.45711537 T 20 CATAB v2.0f-lin.ifort 2020-Dec-18 00:04:54 2020-Dec-18 00:04
1997-Oct-28 04:22 00:01 Jupiter 1.83421659163878 1.83421604567396 1.83421713760349 2.28782519450052 2.07618990401618 2450749.681724448 1.31170818581853 77.5331760210899 13.494317554488 -76.1344505532457 2034512.58031814 T 20 CATAB v2.0f-lin.ifort 2020-Dec-18 00:04:54 2020-Dec-18 00:04
2035-Sep-29 16:55 00:01 Jupiter 1.99654085757088 1.99654033872537 1.99654137641662 4.22374939592419 4.1220830801686 2464600.205149258 1.09015992704738 78.3506325941004 20.2895019114762 81.805199502181 3237804.33790057 T 20 CATAB v2.0f-lin.ifort 2020-Dec-18 00:04:54 2020-Dec-18 00:04
2044-Nov-27 22:55 00:02 Jupiter 1.87538839454307 1.87538765373406 1.87538913535241 2.28159622570407 2.07421738670561 2467947.454638931 1.81480705756124 76.5270716305795 3.19908397075647 -71.3833318148272 2249346.58771303 T 20 CATAB v2.0f-lin.ifort 2020-Dec-18 00:04:54 2020-Dec-18 00:04
2082-Nov-12 05:48 00:04 Jupiter 1.91665797146129 1.91665663132412 1.9166593116099 3.89519578900004 3.78003923831672 2481810.741949682 3.86172032603009 265.323501451221 21.6400115807674 78.4987162749846 2757071.34060007 T 20 CATAB v2.0f-lin.ifort 2020-Dec-18 00:04:54 2020-Dec-18 00:04
2091-Dec-30 03:50 00:05 Jupiter 1.92292739650559 1.92292584571193 1.92292894730035 2.42296958068867 2.23378818905732 2485145.659470581 4.79639007008098 121.034292721219 9.07283813346022 -74.0793618173446 1807255.09985264 T 20 CATAB v2.0f-lin.ifort 2020-Dec-18 00:04:54 2020-Dec-18 00:04
2129-Dec-24 11:14 00:07 Jupiter 1.84778974919837 1.84778798938972 1.84779150904924 3.56416340978404 3.43314221545019 2499018.967960623 6.68651638390163 478.952626788079 21.48246346924 82.6258477721677 2426801.90668165 T 20 CATAB v2.0f-lin.ifort 2020-Dec-18 00:04:54 2020-Dec-18 00:04
2139-Feb-02 10:18 00:08 Jupiter 1.98581363792271 1.98581098047234 1.98581629537026 2.71289321928425 2.55082655202339 2502345.929073557 7.58084836196454 87.2518403926391 31.6637868173117 -47.0161572456007 611488.445498941 T 20 CATAB v2.0f-lin.ifort 2020-Dec-18 00:04:54 2020-Dec-18 00:04
2177-Feb-04 00:17 00:10 Jupiter 1.80641581626802 1.80641433398413 1.80641729863621 3.26437162098581 3.11742338612663 2516227.511642940 9.55343005255986 682.093460378742 21.0945460556534 87.761792928685 2187858.89995078 T 20 CATAB v2.0f-lin.ifort 2020-Dec-18 00:04:54 2020-Dec-18 00:04

Alternate Designations
 2009 WH6 = 2008 RC51 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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