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144861 (2004 LA12)
Classification: Apollo [NEO]          SPK-ID: 2144861
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 85 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .7491417895662379 6.7891e-08  
a 2.508419019736784 2.9065e-08 au
q .6292575063091813 1.7331e-07 au
i 39.42810438863597 9.2882e-06 deg
node 159.2275673093421 1.3408e-05 deg
peri 199.4325233597142 1.3108e-05 deg
M 310.3130641303245 1.7658e-05 deg
tp 2459200.780316447898
(2020-Dec-17.28031645)
7.3909e-05 TDB
period 1451.104050979472
3.97
2.5221e-05
6.905e-08
d
yr
n .2480869650642941 4.3118e-09 deg/d
Q 4.387580533164386 5.0838e-08 au
  Orbit Determination Parameters
   # obs. used (total)      271  
   data-arc span      6732 days (18.43 yr)  
   first obs. used      2002-03-12  
   last obs. used      2020-08-16  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .61571  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Aug-17 06:29:19  

Additional Information
 Earth MOID = .355943 au 
 Jupiter MOID = 1.27624 au 
 T_jup = 2.785 
[ show covariance matrix ]

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 15.4   n/a MPO436726  

144861 (2004 LA12)          Discovered 2004-Jun-14 by NEAT at Palomar
Reference: 20061205/Numbers.arcLast Updated: 2006-12-13

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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
1901-Mar-22 02:59 00:02 Venus 0.0910980159819006 0.0910899467885879 0.0911060889267475 31.7607313299124 31.7599807884927 2415465.623968590 1.55761686725947 1007.14890248289 21.9149049138788 -66.4771224008766 563604.645354287 T 85 CATAB v2.0f-lin.ifort 2020-Aug-17 06:29:32 2020-Aug-17 06:30
2044-Oct-04 15:38 00:01 Earth 0.473791316208014 0.473787892946302 0.473794739676509 32.0848202018937 32.0846449241248 2467893.151328041 1.24298150382328 526.975183188003 24.126898617973 71.2749341980424 2669681.48614085 T 85 CATAB v2.0f-lin.ifort 2020-Aug-17 06:29:32 2020-Aug-17 06:30
2048-Sep-14 06:05 00:01 Earth 0.398901901170663 0.398899397741583 0.398904404956647 32.3042855378782 32.3040787678913 2469333.753420794 1.28406801145128 618.006398264265 22.9064107368187 78.5379271874664 2429627.95718441 T 85 CATAB v2.0f-lin.ifort 2020-Aug-17 06:29:32 2020-Aug-17 06:30
2052-Aug-22 05:18 00:01 Earth 0.370897140247612 0.370896433701439 0.370897847070098 32.4672582449084 32.4670369788821 2470771.720914877 1.35467922784418 651.928351356111 22.2496278715032 -87.5962139343207 2375526.20226962 T 85 CATAB v2.0f-lin.ifort 2020-Aug-17 06:29:32 2020-Aug-17 06:30
2056-Jul-27 22:43 00:01 Earth 0.436713674485513 0.436709124948213 0.436718224333737 33.187089029372 33.1869051861561 2472207.446649223 1.41008549299633 626.501260768239 22.6232852925211 -68.8654462758886 2579919.36013474 T 85 CATAB v2.0f-lin.ifort 2020-Aug-17 06:29:32 2020-Aug-17 06:30
2060-Jul-23 06:06 00:01 Venus 0.105188682363932 0.105185340013108 0.105192027571633 32.1639389103844 32.1632970581825 2473663.754327262 1.41477517405445 888.262914115885 22.5625244343697 -79.2777549648394 676447.047447396 T 85 CATAB v2.0f-lin.ifort 2020-Aug-17 06:29:32 2020-Aug-17 06:30
2099-Dec-05 10:28 00:03 Venus 0.126704700605083 0.126695636052872 0.12671377457356 33.0003370953063 32.9998177439624 2488042.935915689 2.86854071382286 1782.79920647327 22.0307475208899 -75.3218030139195 820149.692639076 T 85 CATAB v2.0f-lin.ifort 2020-Aug-17 06:29:32 2020-Aug-17 06:30
2111-Sep-13 23:28 00:04 Earth 0.416101641183662 0.416095184705418 0.416108100602993 33.3483880201483 33.3481960033021 2492342.478067982 3.73860556797691 1777.98148285382 22.0954196374182 79.588929821686 2635854.69260147 T 85 CATAB v2.0f-lin.ifort 2020-Aug-17 06:29:32 2020-Aug-17 06:30
2115-Aug-04 06:17 00:04 Earth 0.426333614014416 0.426324857323271 0.4263423733723 33.3417734112643 33.3415859656403 2493762.761465968 3.78625941656685 1739.2024571759 21.6911329975518 -75.4741316477823 2722157.45268549 T 85 CATAB v2.0f-lin.ifort 2020-Aug-17 06:29:32 2020-Aug-17 06:30
2158-Sep-10 07:44 00:04 Earth 0.412788140362941 0.412781599168461 0.412794685729676 33.485491547533 33.485298781852 2509505.822397226 4.40166356697517 2099.45227793487 21.4609071138465 81.07817456879 2706481.82977585 T 85 CATAB v2.0f-lin.ifort 2020-Aug-17 06:29:32 2020-Aug-17 06:30
2162-Jul-29 07:26 00:04 Earth 0.448807960642752 0.44879639928805 0.448819524945086 33.5406044964193 33.5404274928331 2510923.809724519 4.21629511074707 1904.32196888207 21.0154310645139 -72.3863300939718 2917011.10613173 T 85 CATAB v2.0f-lin.ifort 2020-Aug-17 06:29:32 2020-Aug-17 06:30
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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