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JPL Small-Body Database Browser
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212240 (2005 JW42)
Classification: Main-belt Asteroid          SPK-ID: 2212240
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 17 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1625488335268803 4.1794e-08  
a 2.764872889133488 2.023e-08 au
q 2.315446026154744 1.2176e-07 au
i 7.261933831982269 5.4789e-06 deg
node 198.1743370591196 3.8003e-05 deg
peri 89.74209706139581 4.3568e-05 deg
M 328.7045571824341 1.8078e-05 deg
tp 2458746.478797631323
(2019-Sep-19.97879763)
8.4059e-05 TDB
period 1679.233856942873
4.60
1.843e-05
5.046e-08
d
yr
n .2143834811998119 2.353e-09 deg/d
Q 3.214299752112232 2.3519e-08 au
  Orbit Determination Parameters
   # obs. used (total)      392  
   data-arc span      21518 days (58.91 yr)  
   first obs. used      1960-09-24  
   last obs. used      2019-08-24  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .57971  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Sep-24 04:03:02  

Additional Information
 Earth MOID = 1.31289 au 
 Jupiter MOID = 1.99469 au 
 T_jup = 3.309 
[ show covariance matrix ]

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 15.9   n/a MPO437019  
diameter diameter 3.502 km 0.243 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.083   0.014 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

212240 (2005 JW42)          Discovered 2005-May-08 by Spacewatch at Kitt Peak
Reference: 20090409/Numbers.arcLast Updated: 2009-04-10

[ show close-approach data ]
Alternate Designations
 2005 JW42 = 2001 QZ220 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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