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105121 (2000 LS31)
Classification: Main-belt Asteroid          SPK-ID: 2105121
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 2459396.5 (2021-Jul-01.0) TDB
Reference: JPL 25 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2916325123544268 4.0045e-08  
a 3.096047997901004 2.0524e-08 au
q 2.193139741903241 1.2339e-07 au
i 9.635302980742628 5.5916e-06 deg
node 252.99551312 3.0538e-05 deg
peri 81.81741607944613 3.2375e-05 deg
M 280.1366188086872 1.3146e-05 deg
tp 2459837.923191632477
(2022-Sep-15.42319163)
7.5709e-05 TDB
period 1989.80241779417
5.45
1.9786e-05
5.417e-08
d
yr
n .180922485961739 1.799e-09 deg/d
Q 3.998956253898766 2.651e-08 au
  Orbit Determination Parameters
   # obs. used (total)      627  
   data-arc span      7649 days (20.94 yr)  
   first obs. used      2000-06-05  
   last obs. used      2021-05-15  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .49911  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Jul-09 00:10:49  

Additional Information
 Earth MOID = 1.20787 au 
 Jupiter MOID = 1.60456 au 
 T_jup = 3.136 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457463.5 (2016-Mar-16.0) TDB
Reference: JPL 25 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2900663418835318 4.0051e-08  
q 2.199645321762221 1.2336e-07 au
tp 2457846.257533517878
(2017-Apr-02.75753352)
6.3657e-05 TDB
node 253.02384675503 3.0527e-05 deg
peri 81.78439262344006 3.2386e-05 deg
i 9.632550256254904 5.5901e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      627  
   data-arc span      7649 days (20.94 yr)  
   first obs. used      2000-06-05  
   last obs. used      2021-05-15  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .49911  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Jul-09 00:10:49  

Additional Information
 Jupiter MOID = 1.60456 au 
 T_jup = 3.136 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.60404760053684E-15 -4.906452926399299E-15 9.397485903195654E-13 1.560747387491421E-15 1.769068518344534E-13 -2.980301180963231E-16
q -4.906452926399299E-15 1.52177546105196E-14 -2.411913012936368E-12 -2.120326906412091E-14 -4.54599258824714E-13 6.13401790523094E-15
tp 9.397485903195654E-13 -2.411913012936368E-12 4.052153458986974E-9 -7.358672672063321E-12 7.238088057225556E-10 8.891023780929967E-13
node 1.560747387491421E-15 -2.120326906412091E-14 -7.358672672063321E-12 9.319186515681368E-10 -9.199350492525264E-10 -6.480174307915492E-11
peri 1.769068518344534E-13 -4.54599258824714E-13 7.238088057225556E-10 -9.199350492525264E-10 1.048847173103048E-9 6.406728949606996E-11
i -2.980301180963231E-16 6.13401790523094E-15 8.891023780929967E-13 -6.480174307915492E-11 6.406728949606996E-11 3.124955206519203E-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 14.57   n/a E2021B55  
diameter diameter 7.059 km 0.199 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.068   0.008 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

105121 (2000 LS31)          Discovered 2000-Jun-05 by LONEOS at Anderson Mesa
Reference: 20051019/Numbers.arcLast Updated: 2005-10-26

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Alternate Designations
 2000 LS31 = 2001 XE147 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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