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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 | Close-Approach Data ]

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For accurate long-term ephemerides, please instead use our Horizons system.This orbit viewer was implemented using two-body methods, and hence should not be used for determining accurate long-term trajectories (over several years or decades) or planetary encounter circumstances.


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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 11 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .09668299348412385 5.2925e-08  
a 2.406272703263728 1.9382e-08 au
q 2.173627055173056 1.267e-07 au
i 4.382996709510905 5.2978e-06 deg
node 215.2541906072209 7.6822e-05 deg
peri 63.96971842187054 8.206e-05 deg
M 200.9467491276865 3.0932e-05 deg
tp 2459602.859470445404
(2022-Jan-23.35947045)
0.00011816 TDB
period 1363.376153401794
3.73
1.6473e-05
4.51e-08
d
yr
n .2640503863161718 3.1903e-09 deg/d
Q 2.6389183513544 2.1256e-08 au
  Orbit Determination Parameters
   # obs. used (total)      233  
   data-arc span      8032 days (21.99 yr)  
   first obs. used      1998-01-31  
   last obs. used      2020-01-28  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .5084  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-25 10:18:59  

Additional Information
 Earth MOID = 1.16163 au 
 Jupiter MOID = 2.45065 au 
 T_jup = 3.512 
[ 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 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

[ show close-approach data ]
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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