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13931 (1988 RF13)
Classification: Main-belt Asteroid          SPK-ID: 2013931
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

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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 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 22 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .145628659038816 3.7427e-08  
a 2.753744344482446 1.4916e-08 au
q 2.352720248259744 1.081e-07 au
i 17.1013471135085 5.1769e-06 deg
node 31.22018574789239 1.3018e-05 deg
peri 271.032058780111 2.3351e-05 deg
M 284.1456194026974 2.17e-05 deg
tp 2458952.191619698757
(2020-Apr-12.69161970)
0.00010175 TDB
period 1669.105753610951
4.57
1.3562e-05
3.713e-08
d
yr
n .2156843562615337 1.7525e-09 deg/d
Q 3.154768440705149 1.7089e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1263  
   data-arc span      11197 days (30.66 yr)  
   first obs. used      1988-09-14  
   last obs. used      2019-05-12  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .52381  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-May-30 02:12:33  

Additional Information
 Earth MOID = 1.41346 au 
 Jupiter MOID = 2.21453 au 
 T_jup = 3.265 
[ 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 13.9   n/a MPO253462  
diameter diameter 10.417 km 0.129 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.037   0.004 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

13931 (1988 RF13)          Discovered 1988-Sep-14 by Bus, S. J. at Cerro Tololo
Reference: 20000320/Numbers.arcLast Updated: 2004-04-19

Alternate Designations
 1988 RF13 = 1996 GU3 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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