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(2014 LW21)
Classification: Amor [NEO]          SPK-ID: 3673681
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | 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 93 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .612926846445884 4.1856e-08  
a 3.355236060298723 3.4559e-08 au
q 1.298721802778315 1.3935e-07 au
i 8.261386977964191 5.0732e-06 deg
node 155.0233530994163 1.7846e-05 deg
peri 129.841757164605 3.0577e-05 deg
M 354.9226640203845 4.7117e-06 deg
tp 2459032.160403818070
(2020-Jul-01.66040382)
2.9014e-05 TDB
period 2244.827882232937
6.15
3.4683e-05
9.496e-08
d
yr
n .1603686424466124 2.4777e-09 deg/d
Q 5.411750317819132 5.5741e-08 au
  Orbit Determination Parameters
   # obs. used (total)      546  
   data-arc span      4368 days (11.96 yr)  
   first obs. used      2008-10-03  
   last obs. used      2020-09-18  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .38174  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Sep-19 06:49:22  

Additional Information
 Earth MOID = .307551 au 
 Jupiter MOID = .490072 au 
 T_jup = 2.807 
[ show covariance matrix ]

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

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 18.4   n/a MPO308604  

[ 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
1905-Nov-21 09:21 00:02 Mars 0.0835740863126817 0.0835600865075415 0.0835880867724359 13.5745638522509 13.5743114967932 2417170.889895226 1.93955139046567 789.596455050036 11.2117144255818 -27.8551241469321 517046.488471024 T 93 CATAB v2.0f-lin.ifort 2020-Sep-19 06:49:30 2020-Sep-19 06:50
1911-Jul-30 04:08 00:02 Earth 0.310593172790541 0.310576860462204 0.310609485222038 11.5779564736056 11.5772155005149 2419247.672172447 1.68343937878245 861.030438580243 12.0962555667191 -19.1595848498764 1047904.15676346 T 93 CATAB v2.0f-lin.ifort 2020-Sep-19 06:49:30 2020-Sep-19 06:50
1977-Jul-12 00:04 < 00:01 Earth 0.367178146176545 0.367169798574981 0.367186493778714 6.72603369006877 6.72495471520014 2443336.502778145 0.0740933811808254 416.917304862899 11.8474274183645 -3.47728340725726 190022.793220853 T 93 CATAB v2.0f-lin.ifort 2020-Sep-19 06:49:30 2020-Sep-19 06:50
2020-Jul-13 11:21 < 00:01 Earth 0.318371535782705 0.318371122887575 0.318371948677834 4.97618151032266 4.97449939672995 2459043.973224271 0.11767072505656 20.7565594358484 11.1669904979593 -8.52598976696765 2309054.21138864 T 93 CATAB v2.0f-lin.ifort 2020-Sep-19 06:49:30 2020-Sep-19 06:50
2073-Aug-25 03:32 < 00:01 Jupiter 1.66629158574192 1.66628732826575 1.66629584321923 10.9384699198972 10.8918992087056 2478444.646983692 0.775362074836274 223.539692424557 25.4609928216838 18.9949565243822 2490091.05611328 T 93 CATAB v2.0f-lin.ifort 2020-Sep-19 06:49:30 2020-Sep-19 06:50
2085-Jun-28 07:01 00:01 Jupiter 1.72070754776134 1.72070600502049 1.72070909050239 11.1340238703334 11.089724191065 2482769.792701826 1.09975687306959 82.7693936020851 24.4090862631989 23.187331835711 3681291.99131482 T 93 CATAB v2.0f-lin.ifort 2020-Sep-19 06:49:30 2020-Sep-19 06:50
2104-Jul-19 04:52 00:04 Earth 0.17381379354665 0.173810931546302 0.173816655747665 7.49988392441111 7.49783968023831 2489729.702865919 3.7369059812006 328.301543214239 12.3887864109005 64.2844639120325 1987786.02500188 T 93 CATAB v2.0f-lin.ifort 2020-Sep-19 06:49:30 2020-Sep-19 06:50
2127-Jun-24 21:16 00:11 Earth 0.25624578679093 0.256201909663627 0.256289664874164 9.8699781059845 9.86892453788109 2498105.386249171 10.7964238655396 2323.04089191612 9.16350824431476 -19.6649624519018 992220.321112549 T 93 CATAB v2.0f-lin.ifort 2020-Sep-19 06:49:30 2020-Sep-19 06:50
2139-Feb-03 21:26 00:10 Mars 0.0857274547210886 0.0856717694791124 0.085783140236725 11.5668321696185 11.5665434493697 2502347.392857355 10.1513216064219 2787.28961065109 10.6998372081047 -4.96763313329366 105261.394669702 T 93 CATAB v2.0f-lin.ifort 2020-Sep-19 06:49:30 2020-Sep-19 06:50
2167-Aug-10 00:55 00:05 Earth 0.292680870274283 0.292632352781385 0.292729388509273 13.4243947454201 13.4237165821338 2512761.537975796 5.02067309277032 2528.55251846386 11.3498814312953 -16.9101130226265 960565.473430418 T 93 CATAB v2.0f-lin.ifort 2020-Sep-19 06:49:30 2020-Sep-19 06:50
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Close-Approach Data ]
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