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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 ]

[ show orbit diagram ]
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 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457050.5 (2015-Jan-28.0) TDB
Reference: JPL 24 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1452428559079104 4.5992e-08  
q 2.579540894403589 1.441e-07 au
tp 2457018.193939806848
(2014-Dec-26.69393981)
8.523e-05 TDB
node 155.3432373727123 0.00012024 deg
peri 269.1863855178536 0.00012151 deg
i 2.354075419896836 4.3315e-06 deg
  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
 Jupiter MOID = 1.84504 au 
 T_jup = 3.229 
Orbit Covariance (6×6)
  e q tp node peri i
e 2.115295427299748E-15 -6.597030411879152E-15 -1.409388877862955E-12 1.932280379295467E-15 -2.869567464903113E-13 -1.98589052930133E-15
q -6.597030411879152E-15 2.076579569570726E-14 4.199461194172987E-12 5.641389554726125E-16 8.485230923229195E-13 6.551593503562844E-15
tp -1.409388877862955E-12 4.199461194172987E-12 7.264078892762429E-9 -2.678330967380763E-12 1.532141852940516E-9 2.009792223480949E-12
node 1.932280379295467E-15 5.641389554726125E-16 -2.678330967380763E-12 1.445755813118978E-8 -1.44455908401256E-8 1.892849472850785E-10
peri -2.869567464903113E-13 8.485230923229195E-13 1.532141852940516E-9 -1.44455908401256E-8 1.476507805461284E-8 -1.88703724146301E-10
i -1.98589052930133E-15 6.551593503562844E-15 2.009792223480949E-12 1.892849472850785E-10 -1.88703724146301E-10 1.876167445523851E-11

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

[ 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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