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JPL Small-Body Database Browser
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66118 (1998 SL71)
Classification: Main-belt Asteroid          SPK-ID: 2066118
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 24 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1497317672736346 4.6413e-08  
a 3.016527245266523 1.7302e-08 au
q 2.564857289803698 1.4622e-07 au
i 2.356285951294302 4.3321e-06 deg
node 155.3121234455933 0.00012032 deg
peri 269.3479591129687 0.0001215 deg
M 12.4342346077127 1.5571e-05 deg
tp 2458934.403895882063
(2020-Mar-25.90389588)
8.265e-05 TDB
period 1913.635879742689
5.24
1.6464e-05
4.508e-08
d
yr
n .1881235630094928 1.6186e-09 deg/d
Q 3.468197200729348 1.9893e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1019  
   data-arc span      9568 days (26.20 yr)  
   first obs. used      1993-11-16  
   last obs. used      2020-01-27  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .51397  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-23 14:51:23  

Additional Information
 Earth MOID = 1.57969 au 
 Jupiter MOID = 1.84504 au 
 T_jup = 3.229 
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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 14.7   n/a MPO417282  
diameter diameter 6.189 km 0.157 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.067   0.015 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

66118 (1998 SL71)          Discovered 1998-Sep-21 by Elst, E. W. at La Silla
Reference: 20030910/Numbers.arcLast Updated: 2004-04-19

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Alternate Designations
 1998 SL71 = 1996 JR9 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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