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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 ]

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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 
[ 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 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

[ show close-approach data ]
[ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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