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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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Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 30 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1498850298836528 3.6801e-08  
a 3.016923253678745 1.4727e-08 au
q 2.56473162164442 1.1278e-07 au
i 2.356431099102415 4.095e-06 deg
node 155.3071456268153 9.969e-05 deg
peri 269.3372502257326 0.00010116 deg
M 50.05760574199302 1.5061e-05 deg
tp 2458934.358626871085
(2020-Mar-25.85862687)
7.9872e-05 TDB
period 1914.012724065108
5.24
1.4015e-05
3.837e-08
d
yr
n .1880865239157909 1.3772e-09 deg/d
Q 3.46911488571307 1.6934e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1206  
   data-arc span      9985 days (27.34 yr)  
   first obs. used      1993-11-16  
   last obs. used      2021-03-19  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .50374  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-May-04 07:00:50  

Additional Information
 Earth MOID = 1.57895 au 
 Jupiter MOID = 1.84475 au 
 T_jup = 3.229 
[ 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 14.78   n/a MPCxxxxx  
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

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