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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 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 11 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .05418969871700198 6.1571e-08  
a 2.569000492998446 2.1437e-08 au
q 2.42978713027903 1.5669e-07 au
i 3.404410562754235 6.2326e-06 deg
node 127.2093826849555 9.6644e-05 deg
peri 209.3299565300389 0.00010791 deg
M 180.954439698075 4.9094e-05 deg
tp 2459948.507175555459
(2023-Jan-04.00717556)
0.00020849 TDB
period 1503.989167594401
4.12
1.8825e-05
5.154e-08
d
yr
n .2393634261181631 2.996e-09 deg/d
Q 2.708213855717861 2.2598e-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 = 1.41841 au 
 Jupiter MOID = 2.48032 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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