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15326 (1993 QA9)
Classification: Main-belt Asteroid          SPK-ID: 2015326
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 20 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1761658766065661 3.1372e-08  
a 2.445361657718128 9.5137e-09 au
q 2.014572377666128 7.8894e-08 au
i 3.148986424553319 5.0098e-06 deg
node 140.7339961051933 7.8467e-05 deg
peri 133.4723877182404 8.038e-05 deg
M 50.95558511895629 1.6872e-05 deg
tp 2458802.801958690321
(2019-Nov-15.30195869)
6.54e-05 TDB
period 1396.731971683461
3.82
8.151e-06
2.232e-08
d
yr
n .257744511687591 1.5041e-09 deg/d
Q 2.876150937770128 1.119e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1114  
   data-arc span      9980 days (27.32 yr)  
   first obs. used      1992-03-07  
   last obs. used      2019-07-04  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .54558  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-22 21:16:00  

Additional Information
 Earth MOID = .999819 au 
 Jupiter MOID = 2.24007 au 
 T_jup = 3.475 
[ 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 15.3   n/a MPO473973  
diameter diameter 3.246 km 1.283 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.221   0.176 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

15326 (1993 QA9)          Discovered 1993-Aug-20 by Elst, E. W. at La Silla
Reference: 20000621/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1993 QA9 = 1997 TY18 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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