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JPL Small-Body Database Browser
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212239 (2005 JW38)
Classification: Main-belt Asteroid          SPK-ID: 2212239
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 15 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2831837494967329 3.4698e-08  
a 2.651367150984122 1.5962e-08 au
q 1.900543059875968 9.3844e-08 au
i 4.117649640511626 5.0076e-06 deg
node 44.10195607633297 6.024e-05 deg
peri 284.2674088562227 6.097e-05 deg
M 18.33529081472794 1.0033e-05 deg
tp 2458520.186503109108
(2019-Feb-05.68650311)
4.3537e-05 TDB
period 1576.896661900591
4.32
1.424e-05
3.899e-08
d
yr
n .2282965071193072 2.0617e-09 deg/d
Q 3.402191242092276 2.0483e-08 au
  Orbit Determination Parameters
   # obs. used (total)      519  
   data-arc span      5737 days (15.71 yr)  
   first obs. used      2004-03-19  
   last obs. used      2019-12-03  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .56329  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Dec-14 15:04:57  

Additional Information
 Earth MOID = .89371 au 
 Jupiter MOID = 1.97587 au 
 T_jup = 3.328 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456947.5 (2014-Oct-17.0) TDB
Reference: JPL 15 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .285892181443222 3.4676e-08  
q 1.892259515738183 9.3891e-08 au
tp 2456943.965814576541
(2014-Oct-13.46581458)
3.6757e-05 TDB
node 44.12427132177463 6.0315e-05 deg
peri 284.3107603515087 6.1022e-05 deg
i 4.119160778622987 5.0044e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      519  
   data-arc span      5737 days (15.71 yr)  
   first obs. used      2004-03-19  
   last obs. used      2019-12-03  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .56329  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Dec-14 15:04:57  

Additional Information
 Jupiter MOID = 1.97587 au 
 T_jup = 3.328 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.202396805825773E-15 -3.232081888872816E-15 -1.495594487865323E-13 9.163939053341076E-16 -4.055357223156441E-14 -1.507513946980713E-15
q -3.232081888872816E-15 8.815560489023355E-15 5.047610107351577E-13 -2.986347706596288E-15 1.330380161302657E-13 4.441553229123826E-15
tp -1.495594487865323E-13 5.047610107351577E-13 1.351102787933652E-9 -1.123644747527305E-11 3.562176608083067E-10 1.81250681244066E-12
node 9.163939053341076E-16 -2.986347706596288E-15 -1.123644747527305E-11 3.637879436614569E-9 -3.631144782634694E-9 3.731033382985675E-11
peri -4.055357223156441E-14 1.330380161302657E-13 3.562176608083067E-10 -3.631144782634694E-9 3.723701620284335E-9 -3.678428510657276E-11
i -1.507513946980713E-15 4.441553229123826E-15 1.81250681244066E-12 3.731033382985675E-11 -3.678428510657276E-11 2.504370260714218E-11

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 15.7   n/a MPO450007  
diameter diameter 1.934 km 0.076 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.272   0.022 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

212239 (2005 JW38)          Discovered 2005-May-07 by Spacewatch at Kitt Peak
Reference: 20090409/Numbers.arcLast Updated: 2009-04-10
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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