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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 ]

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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 18 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .09852667921204396 4.9343e-08  
a 3.019666737942003 4.1439e-08 au
q 2.722149001925513 1.518e-07 au
i 7.655991410324782 5.3725e-06 deg
node 210.0777512367632 3.6763e-05 deg
peri 281.8672141886009 4.7429e-05 deg
M 303.8975903508307 3.0194e-05 deg
tp 2459299.186754489040
(2021-Mar-25.68675449)
0.00016354 TDB
period 1916.624121645846
5.25
3.9453e-05
1.08e-07
d
yr
n .18783025630026 3.8664e-09 deg/d
Q 3.317184473958495 4.5522e-08 au
  Orbit Determination Parameters
   # obs. used (total)      277  
   data-arc span      5913 days (16.19 yr)  
   first obs. used      2003-09-20  
   last obs. used      2019-11-28  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .54383  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Dec-14 16:01:08  

Additional Information
 Earth MOID = 1.74943 au 
 Jupiter MOID = 1.78207 au 
 T_jup = 3.226 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457551.5 (2016-Jun-12.0) TDB
Reference: JPL 18 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .09814418332389671 5.0096e-08  
q 2.725261105196978 1.5434e-07 au
tp 2457389.415477011357
(2016-Jan-01.91547701)
0.00014842 TDB
node 210.0901306414476 3.679e-05 deg
peri 283.1456416516501 4.7288e-05 deg
i 7.650294177072568 5.3716e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      277  
   data-arc span      5913 days (16.19 yr)  
   first obs. used      2003-09-20  
   last obs. used      2019-11-28  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .54383  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Dec-14 16:01:08  

Additional Information
 Jupiter MOID = 1.78207 au 
 T_jup = 3.226 
Orbit Covariance (6×6)
  e q tp node peri i
e 2.509653286188275E-15 -7.500964596861837E-15 2.292214771727437E-12 -1.359358478476234E-14 5.345817802016275E-13 -4.015713120345962E-15
q -7.500964596861837E-15 2.382029310410411E-14 -5.649351456292917E-12 3.671080833613032E-14 -1.338457119456753E-12 1.346751927764843E-14
tp 2.292214771727437E-12 -5.649351456292917E-12 2.20293236632402E-8 -4.181911562635594E-11 4.431319263778276E-9 -3.870639370311142E-12
node -1.359358478476234E-14 3.671080833613032E-14 -4.181911562635594E-11 1.353519806980406E-9 -1.34986283919456E-9 -2.830048638851457E-11
peri 5.345817802016275E-13 -1.338457119456753E-12 4.431319263778276E-9 -1.34986283919456E-9 2.236193250309675E-9 2.723928471022122E-11
i -4.015713120345962E-15 1.346751927764843E-14 -3.870639370311142E-12 -2.830048638851457E-11 2.723928471022122E-11 2.885394892747383E-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

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