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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 ]

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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 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 
[ show covariance matrix ]

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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