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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.


Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 26 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1821790565519209 3.5626e-08  
a 3.953870106220481 3.4746e-08 au
q 3.23355778054039 1.5393e-07 au
i 3.177850361549843 5.6471e-06 deg
node 162.3718754291223 7.8398e-05 deg
peri 304.8280946781958 8.0737e-05 deg
M 310.6047739916115 1.8389e-05 deg
tp 2459594.516582143228
(2022-Jan-15.01658214)
0.00014924 TDB
period 2871.653417426883
7.86
3.7854e-05
1.036e-07
d
yr
n .1253633178068454 1.6525e-09 deg/d
Q 4.674182431900571 4.1076e-08 au
  Orbit Determination Parameters
   # obs. used (total)      772  
   data-arc span      11812 days (32.34 yr)  
   first obs. used      1988-09-16  
   last obs. used      2021-01-18  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .55835  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 14:11:36  

Additional Information
 Earth MOID = 2.25167 au 
 Jupiter MOID = .520364 au 
 T_jup = 3.028 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457091.5 (2015-Mar-10.0) TDB
Reference: JPL 26 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1822880935457701 3.5804e-08  
q 3.236904474552716 1.5659e-07 au
tp 2456731.896572796425
(2014-Mar-15.39657280)
0.00013454 TDB
node 162.3757218352971 7.8399e-05 deg
peri 305.7101984398954 8.0711e-05 deg
i 3.176776057817211 5.6455e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      772  
   data-arc span      11812 days (32.34 yr)  
   first obs. used      1988-09-16  
   last obs. used      2021-01-18  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .55835  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 14:11:36  

Additional Information
 Jupiter MOID = .520364 au 
 T_jup = 3.028 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.281913276685928E-15 -5.526700614318614E-15 5.215769186557059E-13 -4.248576362251612E-15 9.609614124141533E-14 -3.580108305764811E-16
q -5.526700614318614E-15 2.452016004687817E-14 -1.216035980270416E-12 1.502007758865747E-14 -2.511787863961307E-13 1.34059434308139E-15
tp 5.215769186557059E-13 -1.216035980270416E-12 1.810143076376023E-8 -1.630457922674742E-11 2.609374894619361E-9 4.483363517962649E-12
node -4.248576362251612E-15 1.502007758865747E-14 -1.630457922674742E-11 6.146401567973933E-9 -6.138871006969941E-9 1.599883605166981E-10
peri 9.609614124141533E-14 -2.511787863961307E-13 2.609374894619361E-9 -6.138871006969941E-9 6.514279879454269E-9 -1.591365271023069E-10
i -3.580108305764811E-16 1.34059434308139E-15 4.483363517962649E-12 1.599883605166981E-10 -1.591365271023069E-10 3.187221724410463E-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 13.86   n/a E2021B10  
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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