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249008 (2007 QJ)
Classification: Main-belt Asteroid          SPK-ID: 2249008
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 15 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .192722281474127 6.8435e-08  
a 2.72133323043562 2.6801e-08 au
q 2.196871681614711 1.9372e-07 au
i 9.731960769851071 7.5766e-06 deg
node 310.8308675427848 4.002e-05 deg
peri 357.0533444911711 4.4933e-05 deg
M 319.2984742880626 1.8281e-05 deg
tp 2459185.886968448469
(2020-Dec-02.38696845)
8.3587e-05 TDB
period 1639.724985097421
4.49
2.4223e-05
6.632e-08
d
yr
n .2195490117378502 3.2434e-09 deg/d
Q 3.245794779256529 3.1967e-08 au
  Orbit Determination Parameters
   # obs. used (total)      376  
   data-arc span      7500 days (20.53 yr)  
   first obs. used      1998-08-17  
   last obs. used      2019-02-28  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .52411  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-14 09:23:08  

Additional Information
 Earth MOID = 1.18224 au 
 Jupiter MOID = 2.02822 au 
 T_jup = 3.311 
[ 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 15.7   n/a MPO433631  
diameter diameter 4.877 km 0.315 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.051   0.014 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

249008 (2007 QJ)          Discovered 2007-Aug-16 by BATTeRS at Bisei SG Center
Reference: 20100824/Numbers.arcLast Updated: 2010-08-27

[ show close-approach data ]
Alternate Designations
 2007 QJ = 1998 QU108 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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