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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 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 10 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .01665063926671663 5.5334e-08  
a 2.66857731640018 2.4678e-08 au
q 2.624143798149458 1.434e-07 au
i 5.367072355479179 6.0149e-06 deg
node 250.4749253875086 6.3131e-05 deg
peri 179.2057992317218 0.0002119 deg
M 169.8057377220636 0.00020516 deg
tp 2457849.451518871413
(2017-Apr-05.95151887)
0.00090571 TDB
period 1592.275130589773
4.36
2.2087e-05
6.047e-08
d
yr
n .226091579956196 3.1362e-09 deg/d
Q 2.713010834650903 2.5089e-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 = 1.63742 au 
 Jupiter MOID = 2.34122 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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