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(1999 LE31)
Classification: Centaur          SPK-ID: 3021708
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2457000.5 (2014-Dec-09.0) TDB
Reference: JPL 5 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .4675960050293705 1.4084e-05  
a 8.13244431263513 0.00024708 AU
q 4.329745840923117 4.0575e-05 AU
i 151.8067934166923 3.7164e-05 deg
node 291.9914704618874 0.00014887 deg
peri 32.15867948806238 0.001632 deg
M 248.9878576896888 0.011765 deg
tp 2459612.649667856383
(2022-Feb-02.14966786)
0.39585 JED
period 8470.910126206549
23.19
0.38605
0.001057
d
yr
n .04249838501842488 1.9368e-06 deg/d
Q 11.93514278434714 0.00036262 AU
  Orbit Determination Parameters
   # obs. used (total)      127  
   data-arc span      409 days (1.12 yr)  
   first obs. used      1999-05-17  
   last obs. used      2000-06-29  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      3  
   fit RMS      .64529  
   data source      ORB  
   producer      Otto Matic  
   solution date      2014-Jun-13 00:34:47  

Additional Information
 Earth MOID = 3.35152 AU 
 T_jup = -1.308 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Close-Approach Data ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 12.4 mag n/a MPO02649  
diameter diameter 16.8 km 4.2 Fernandez et al. (2005) Astron.J. 130:308-318  
geometric albedo albedo 0.056   0.026 Fernandez et al. (2005) Astron.J. 130:308-318  

[ hide close-approach data ]
Close-Approach Data   ...sorted by Date/Time (TDB)
Date/Time (TDB) Time Uncertainty
(days_HH:MM)
Body Nominal Distance (AU) Minimum Distance (AU) Maximum Distance (AU) V-relative (km/s) V-infinity (km/s) JD (TDB) Time Uncertainty (minutes) Semi-major axis (km) Semi-minor axis (km) range-LOV angle (deg) N-sigma BP Orbit Ref. Reference Modified
1950-Nov-02 10:38 08:37 Jupiter 1.95352592395233 1.94897714803419 1.95807856605714 26.5137253209594 26.4973669889362 2433587.942791217 516.611106463482 96893.3061981181 2891.40628044725 -26.9972521739489 18696.9422817135 T 5 CATAB v2.0c-linF95 2014-Jun-13 00:34:48 2014-Jun-13 00:34
1974-Mar-27 04:31 04:44 Jupiter 1.45653078650253 1.45424967311004 1.45881314967079 27.1911821128456 27.1697868270095 2442133.688162285 283.887748940941 50649.0095504715 3221.65924050888 -27.5921188691122 13105.3030868831 T 5 CATAB v2.0c-linF95 2014-Jun-13 00:34:48 2014-Jun-13 00:34
1997-Aug-21 22:38 00:09 Jupiter 1.01098130211747 1.01093262632289 1.01103000693531 27.7843965982462 27.7542258053265 2450682.442980975 9.191183998001 5235.28346863152 813.652488224498 79.0082474742933 77217.2398426886 T 5 CATAB v2.0c-linF95 2014-Jun-13 00:34:48 2014-Jun-13 00:34
2005-Mar-24 10:20 00:20 Saturn 1.07805153255279 1.07742946942547 1.07867361451887 17.4600458019691 17.44656668684 2453453.930507414 20.1353300506216 13539.0397502097 1840.71424777132 6.88042481072247 6970.98904635742 T 5 CATAB v2.0c-linF95 2014-Jun-13 00:34:48 2014-Jun-13 00:34
2021-Jan-10 12:00 05:11 Jupiter 0.643243604204107 0.641818693220047 0.644677238379605 28.3199337951054 28.2733983139296 2459225.000100989 310.788483070739 58273.1443632005 3321.03691570198 -59.8228962840961 10759.7081223935 T 5 CATAB v2.0c-linF95 2014-Jun-13 00:34:48 2014-Jun-13 00:34
2044-Jun-13 19:03 11:19 Jupiter 0.517963486462663 0.517472481710685 0.518507032238799 28.7163683818467 28.6593654028851 2467780.293723903 678.742120524079 118643.608191078 3287.27712494774 83.9508775646264 10177.1620601525 T 5 CATAB v2.0c-linF95 2014-Jun-13 00:34:48 2014-Jun-13 00:34
2067-Nov-01 15:59 21:54 Jupiter 0.696241359552982 0.689985689137115 0.702571487786172 29.0665957531121 29.0247111904852 2476321.166135757 1313.81664460005 213734.957424656 3193.29166666289 48.6993908208023 10744.1969503626 T 5 CATAB v2.0c-linF95 2014-Jun-13 00:34:48 2014-Jun-13 00:34
2091-Feb-15 21:15 1_08:00 Jupiter 1.09375527565382 1.08335192733213 1.10420001907647 29.3232711908193 29.2968496536624 2484828.385760867 1919.93755751617 280715.503989267 2968.87713514248 33.486705287792 13430.9295078302 T 5 CATAB v2.0c-linF95 2014-Jun-13 00:34:48 2014-Jun-13 00:34
2114-May-14 02:12 1_15:15 Jupiter 1.54358246256122 1.53218119657329 1.55501494671987 29.3735609494645 29.3548736437648 2493315.591772998 2354.58995585904 294611.86066273 2554.81778215489 31.2691143785811 20757.9900054899 T 5 CATAB v2.0c-linF95 2014-Jun-13 00:34:48 2014-Jun-13 00:34
2122-Apr-23 17:28 1_01:03 Saturn 1.99062935089071 1.9830187585174 1.9982739276916 16.7112531482924 16.7036274732989 2496217.228098104 1503.36771147344 229643.367014514 4453.59134860499 47.296798749991 20960.9681525329 T 5 CATAB v2.0c-linF95 2014-Jun-13 00:34:48 2014-Jun-13 00:34
2137-Jul-20 09:25 1_19:20 Jupiter 1.95208378354443 1.94215143185904 1.9620494123635 29.1643044361545 29.1494226281514 2501783.892404018 2599.68343934075 259404.893154162 1908.18852008403 37.7257736162384 41209.79400993 T 5 CATAB v2.0c-linF95 2014-Jun-13 00:34:48 2014-Jun-13 00:34
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Close-Approach Data ]
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