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249013 (2007 RK42)
Classification: Main-belt Asteroid          SPK-ID: 2249013
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 10 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .01666592830510132 5.5232e-08  
a 2.667035533512793 2.5115e-08 au
q 2.622586910524112 1.4275e-07 au
i 5.364654742840635 6.011e-06 deg
node 250.4517030828033 6.3213e-05 deg
peri 183.6254737609395 0.00021191 deg
M 255.7615120635681 0.00020524 deg
tp 2459461.145923227809
(2021-Sep-03.64592323)
0.00090795 TDB
period 1590.895413440199
4.36
2.2472e-05
6.152e-08
d
yr
n .2262876597409539 3.1964e-09 deg/d
Q 2.711484156501475 2.5534e-08 au
  Orbit Determination Parameters
   # obs. used (total)      166  
   data-arc span      5778 days (15.82 yr)  
   first obs. used      2003-10-03  
   last obs. used      2019-07-29  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .49396  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Sep-24 04:18:25  

Additional Information
 Earth MOID = 1.63686 au 
 Jupiter MOID = 2.33855 au 
 T_jup = 3.376 
[ 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 16.5   n/a MPO437157  
diameter diameter 2.904 km 0.379 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.048   0.014 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

249013 (2007 RK42)          Discovered 2007-Sep-09 by Spacewatch at Kitt Peak
Reference: 20100824/Numbers.arcLast Updated: 2010-08-27
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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