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212242 (2005 JL49)
Classification: Main-belt Asteroid          SPK-ID: 2212242
[ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ hide orbit diagram ]

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 2459000.5 (2020-May-31.0) TDB
Reference: JPL 11 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .05408091241214808 6.1553e-08  
a 2.569154065113506 2.1379e-08 au
q 2.430211869144788 1.5663e-07 au
i 3.404288594716634 6.2322e-06 deg
node 127.2094694759675 9.6646e-05 deg
peri 209.2439417536586 0.00010796 deg
M 133.1837811335893 4.9003e-05 deg
tp 2458444.041873338135
(2018-Nov-21.54187334)		 0.00020253 TDB
period 1504.124029917251
4.12		 1.8774e-05
5.14e-08		 d
yr
n .2393419643856134 2.9874e-09 deg/d
Q 2.708096261082224 2.2535e-08 au
   Orbit Determination Parameters
   # obs. used (total)      176  
   data-arc span      7275 days (19.92 yr)  
   first obs. used      2000-02-04  
   last obs. used      2020-01-05  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .639  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Jan-30 00:55:35  

Additional Information
 Earth MOID = 1.42073 au 
 Jupiter MOID = 2.48098 au 
 T_jup = 3.426 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457027.5 (2015-Jan-05.0) TDB
Reference: JPL 11 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .05522898221452573 6.1775e-08  
q 2.426798922502154 1.5745e-07 au
tp 2456934.724731921506
(2014-Oct-04.22473192)		 0.00019266 TDB
node 127.280873576124 9.6613e-05 deg
peri 207.8968089491729 0.00010742 deg
i 3.405122539894006 6.2365e-06 deg
   Orbit Determination Parameters
   # obs. used (total)      176  
   data-arc span      7275 days (19.92 yr)  
   first obs. used      2000-02-04  
   last obs. used      2020-01-05  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .639  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Jan-30 00:55:35  

Additional Information
 Jupiter MOID = 2.48098 au 
 T_jup = 3.426 
Orbit Covariance (6×6)
  e q tp node peri i
e 3.816152016267756E-15 -9.647823724785436E-15 1.196523992417367E-12 4.439886850439996E-14 2.932490776731638E-13 3.669061018182841E-15
q -9.647823724785436E-15 2.479181942914453E-14 -2.197943295583832E-12 -1.140023001778015E-13 -5.353140686651143E-13 -8.830149313767608E-15
tp 1.196523992417367E-12 -2.197943295583832E-12 3.711820451466858E-8 -8.110644551946839E-11 9.086829089774025E-9 3.295518303002745E-12
node 4.439886850439996E-14 -1.140023001778015E-13 -8.110644551946839E-11 9.334105566252245E-9 -9.336140402967616E-9 1.916104697071394E-10
peri 2.932490776731638E-13 -5.353140686651143E-13 9.086829089774025E-9 -9.336140402967616E-9 1.154011953836642E-8 -1.90424407276237E-10
i 3.669061018182841E-15 -8.830149313767608E-15 3.295518303002745E-12 1.916104697071394E-10 -1.90424407276237E-10 3.88943707732276E-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 16.9   n/a MPO454524  

212242 (2005 JL49)          Discovered 2005-May-04 by Spacewatch at Kitt Peak
Reference: 20090409/Numbers.arcLast Updated: 2009-04-10

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