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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 2459000.5 (2020-May-31.0) TDB
Reference: JPL 16 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2833566623472563 3.3808e-08  
a 2.652153799894581 1.5609e-08 au
q 1.90064835112486 9.0967e-08 au
i 4.116965681728512 4.9732e-06 deg
node 44.0971232745367 5.9217e-05 deg
peri 284.3178197489062 5.995e-05 deg
M 109.5708047395784 1.0443e-05 deg
tp 2458520.336840696623
(2019-Feb-05.83684070)
4.3281e-05 TDB
period 1577.598501353134
4.32
1.3927e-05
3.813e-08
d
yr
n .2281949429409459 2.0145e-09 deg/d
Q 3.403659248664303 2.0032e-08 au
  Orbit Determination Parameters
   # obs. used (total)      538  
   data-arc span      5769 days (15.79 yr)  
   first obs. used      2004-03-19  
   last obs. used      2020-01-04  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .5538  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Jan-30 00:55:36  

Additional Information
 Earth MOID = .894707 au 
 Jupiter MOID = 1.97786 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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