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249469 (2009 JL5)
Classification: Main-belt Asteroid          SPK-ID: 2249469
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 16 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1660020990654941 5.374e-08  
a 3.189054089237416 5.2034e-08 au
q 2.659664416390608 1.7044e-07 au
i 17.84769954549988 6.202e-06 deg
node 152.7196096439106 2.2252e-05 deg
peri 177.1448342776914 3.0531e-05 deg
M 240.5683364018481 2.3689e-05 deg
tp 2459690.593975206598
(2022-Apr-21.09397521)
0.00014571 TDB
period 2080.133723250084
5.70
5.0911e-05
1.394e-07
d
yr
n .1730657966726878 4.2357e-09 deg/d
Q 3.718443762084225 6.0672e-08 au
  Orbit Determination Parameters
   # obs. used (total)      217  
   data-arc span      7531 days (20.62 yr)  
   first obs. used      1999-09-07  
   last obs. used      2020-04-20  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .54948  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-21 13:44:35  

Additional Information
 Earth MOID = 1.64911 au 
 Jupiter MOID = 1.67443 au 
 T_jup = 3.101 
[ 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 15.5   n/a MPO470661  
diameter diameter 4.255 km 0.323 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.067   0.018 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

249469 (2009 JL5)          Discovered 2009-May-14 by Spacewatch at Kitt Peak
Reference: 20100824/Numbers.arcLast Updated: 2010-08-27

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Alternate Designations
 2009 JL5 = 1999 RV76 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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