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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 14 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2831837520848537 3.5351e-08  
a 2.651367149862036 1.6247e-08 au
q 1.90054305220958 9.5973e-08 au
i 4.117649572630064 5.0187e-06 deg
node 44.10195827971383 6.1e-05 deg
peri 284.2674067314402 6.1722e-05 deg
M 18.33529116894736 1.0077e-05 deg
tp 2458520.186501608516
(2019-Feb-05.68650161)
4.3719e-05 TDB
period 1576.896660899552
4.32
1.4494e-05
3.968e-08
d
yr
n .2282965072642334 2.0984e-09 deg/d
Q 3.402191247514492 2.0848e-08 au
  Orbit Determination Parameters
   # obs. used (total)      495  
   data-arc span      5730 days (15.69 yr)  
   first obs. used      2004-03-19  
   last obs. used      2019-11-26  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .57302  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Dec-04 16:52:18  

Additional Information
 Earth MOID = .89371 au 
 Jupiter MOID = 1.97587 au 
 T_jup = 3.328 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456914.5 (2014-Sep-14.0) TDB
Reference: JPL 14 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2859013784250516 3.5332e-08  
q 1.892257907393449 9.6038e-08 au
tp 2456943.970688015157
(2014-Oct-13.47068802)
3.6779e-05 TDB
node 44.12492238127146 6.1075e-05 deg
peri 284.3122260091446 6.1775e-05 deg
i 4.119153673511436 5.0156e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      495  
   data-arc span      5730 days (15.69 yr)  
   first obs. used      2004-03-19  
   last obs. used      2019-11-26  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .57302  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Dec-04 16:52:18  

Additional Information
 Jupiter MOID = 1.97587 au 
 T_jup = 3.328 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.248351673888302E-15 -3.368990446046314E-15 -1.581210507523406E-13 1.504403703399809E-15 -3.984273132219545E-14 -1.615516498473151E-15
q -3.368990446046314E-15 9.22337765318703E-15 5.300750193994871E-13 -4.758663222821116E-15 1.30912528320088E-13 4.764156615874013E-15
tp -1.581210507523406E-13 5.300750193994871E-13 1.352660306275146E-9 -1.250095885896843E-11 3.572303832550893E-10 1.873298389186316E-12
node 1.504403703399809E-15 -4.758663222821116E-15 -1.250095885896843E-11 3.730150984530173E-9 -3.723479178292592E-9 3.411397728318154E-11
peri -3.984273132219545E-14 1.30912528320088E-13 3.572303832550893E-10 -3.723479178292592E-9 3.816132269127292E-9 -3.358806880756622E-11
i -1.615516498473151E-15 4.764156615874013E-15 1.873298389186316E-12 3.411397728318154E-11 -3.358806880756622E-11 2.515600716836425E-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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