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249018 (2007 RF139)
Classification: Main-belt Asteroid          SPK-ID: 2249018
[ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 13 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .09667931310136701 4.3773e-08  
a 2.406068154516058 1.6957e-08 au
q 2.173451138062372 1.0989e-07 au
i 4.383133509306852 5.2017e-06 deg
node 215.2448470141083 6.6145e-05 deg
peri 64.05878336867337 7.2119e-05 deg
M 253.6678953761501 2.9943e-05 deg
tp 2459603.144919479268
(2022-Jan-23.64491948)		 0.00011348 TDB
period 1363.20231340577
3.73		 1.4411e-05
3.946e-08		 d
yr
n .2640840588808792 2.7917e-09 deg/d
Q 2.638685170969745 1.8596e-08 au
   Orbit Determination Parameters
   # obs. used (total)      256  
   data-arc span      8490 days (23.24 yr)  
   first obs. used      1998-01-31  
   last obs. used      2021-04-30  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .49624  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-May-04 11:11:59  

Additional Information
 Earth MOID = 1.1596 au 
 Jupiter MOID = 2.45006 au 
 T_jup = 3.512 
[ 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 16.9   n/a MPO454844  
diameter diameter 2.625 km 0.142 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.049   0.008 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

249018 (2007 RF139)          Discovered 2007-Sep-15 by Ferrando, R. at Pla D'Arguines
Reference: 20100824/Numbers.arcLast Updated: 2010-08-27
[ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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