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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 ]

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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.


Orbital Elements at Epoch 2459396.5 (2021-Jul-01.0) TDB
Reference: JPL 14 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .05434807631436844 6.0649e-08  
a 2.568530561321179 1.9321e-08 au
q 2.428935866358708 1.5557e-07 au
i 3.404469125021923 5.7823e-06 deg
node 127.2101904580689 9.4607e-05 deg
peri 209.4513848493462 0.00010501 deg
M 227.7483973169975 4.8172e-05 deg
tp 2459948.862232240354
(2023-Jan-04.36223224)
0.00020437 TDB
period 1503.576513043532
4.12
1.6965e-05
4.645e-08
d
yr
n .239429119088386 2.7015e-09 deg/d
Q 2.70812525628365 2.0371e-08 au
  Orbit Determination Parameters
   # obs. used (total)      211  
   data-arc span      7759 days (21.24 yr)  
   first obs. used      2000-02-04  
   last obs. used      2021-05-03  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .60982  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Jul-09 03:28:52  

Additional Information
 Earth MOID = 1.41875 au 
 Jupiter MOID = 2.48004 au 
 T_jup = 3.426 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 17.02   n/a MPCxxxxx  

212242 (2005 JL49)          Discovered 2005-May-04 by Spacewatch at Kitt Peak
Reference: 20090409/Numbers.arcLast Updated: 2009-04-10
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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