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85162 (1988 SL2)
Classification: Outer Main-belt Asteroid          SPK-ID: 2085162
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 22 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1820068641558687 3.6014e-08  
a 3.952709115781779 3.5391e-08 au
q 3.233288924698021 1.5464e-07 au
i 3.178067349693741 5.8527e-06 deg
node 162.3750531109229 7.8542e-05 deg
peri 304.8914620271885 8.0899e-05 deg
M 285.4475751588188 1.8464e-05 deg
tp 2459594.928991451675
(2022-Jan-15.42899145)
0.0001512 TDB
period 2870.388687939728
7.86
3.855e-05
1.055e-07
d
yr
n .1254185544670594 1.6844e-09 deg/d
Q 4.672129306865537 4.1832e-08 au
  Orbit Determination Parameters
   # obs. used (total)      736  
   data-arc span      11726 days (32.10 yr)  
   first obs. used      1988-09-16  
   last obs. used      2020-10-24  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .56813  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-12 21:01:53  

Additional Information
 Earth MOID = 2.25153 au 
 Jupiter MOID = .522008 au 
 T_jup = 3.028 
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Orbital Elements at Epoch 2456981.5 (2014-Nov-20.0) TDB
Reference: JPL 22 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1826507609921062 3.615e-08  
q 3.237996131804274 1.577e-07 au
tp 2456732.975045985170
(2014-Mar-16.47504599)
0.0001353 TDB
node 162.3766385041528 7.8586e-05 deg
peri 305.9050159225741 8.0902e-05 deg
i 3.17510109167724 5.8478e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      736  
   data-arc span      11726 days (32.10 yr)  
   first obs. used      1988-09-16  
   last obs. used      2020-10-24  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .56813  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-12 21:01:53  

Additional Information
 Jupiter MOID = .522008 au 
 T_jup = 3.028 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.306853296348422E-15 -5.614245977895932E-15 6.074933244561403E-13 -5.191118474991459E-15 1.060403876864538E-13 -3.684914556467976E-16
q -5.614245977895932E-15 2.487036525572847E-14 -1.463712910742717E-12 1.363998664946698E-14 -2.762733698063747E-13 9.163183059012156E-16
tp 6.074933244561403E-13 -1.463712910742717E-12 1.830476647285768E-8 -1.752930531641441E-11 2.628078923373801E-9 3.68325658384827E-12
node -5.191118474991459E-15 1.363998664946698E-14 -1.752930531641441E-11 6.175763148292094E-9 -6.168456158645237E-9 1.526809113101504E-10
peri 1.060403876864538E-13 -2.762733698063747E-13 2.628078923373801E-9 -6.168456158645237E-9 6.5451942271486E-9 -1.519591024169843E-10
i -3.684914556467976E-16 9.163183059012156E-16 3.68325658384827E-12 1.526809113101504E-10 -1.519591024169843E-10 3.419734326264539E-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 13.8   n/a MPO453282  
diameter diameter 11.298 km 2.608 urn:nasa:pds:neowise_diameters_albedos::2.0[hildas] (http://adsabs.harvard.edu/abs/2012ApJ...744..197G)  
geometric albedo albedo 0.032   0.011 urn:nasa:pds:neowise_diameters_albedos::2.0[hildas] (http://adsabs.harvard.edu/abs/2012ApJ...744..197G)  

85162 (1988 SL2)          Discovered 1988-Sep-16 by Bus, S. J. at Cerro Tololo
Reference: 20040830/Numbers.arcLast Updated: 2004-09-06

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Alternate Designations
 1988 SL2 = 1999 CR16 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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