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243455 (2009 JJ2)
Classification: Main-belt Asteroid          SPK-ID: 2243455
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 18 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .131264884578734 4.6004e-08  
a 2.965281621792034 3.4285e-08 au
q 2.576044271964061 1.5025e-07 au
i 9.857416425741205 6.2903e-06 deg
node 24.45568543514751 3.0142e-05 deg
peri 253.3195819483515 4.0353e-05 deg
M 297.4930570346907 2.6342e-05 deg
tp 2458924.334492156598
(2020-Mar-15.83449216)
0.00013815 TDB
period 1865.079487907063
5.11
3.2347e-05
8.856e-08
d
yr
n .1930212638840296 3.3477e-09 deg/d
Q 3.354518971620007 3.8786e-08 au
  Orbit Determination Parameters
   # obs. used (total)      289  
   data-arc span      8604 days (23.56 yr)  
   first obs. used      1995-10-20  
   last obs. used      2019-05-11  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .58801  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-May-30 08:37:43  

Additional Information
 Earth MOID = 1.58143 au 
 Jupiter MOID = 1.83466 au 
 T_jup = 3.229 
[ 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 15.8   n/a MPO437136  
diameter diameter 2.705 km 0.278 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.127   0.037 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

243455 (2009 JJ2)          Discovered 2009-May-12 by Lowe, A. at Mayhill
Reference: 20100626/Numbers.arcLast Updated: 2010-06-28

[ show close-approach data ]
Alternate Designations
 2009 JJ2 = 1995 UJ29 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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