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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 21 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1761658773155584 3.0584e-08  
a 2.445361657564093 9.3231e-09 au
q 2.014572375805487 7.6659e-08 au
i 3.148985992333508 4.9947e-06 deg
node 140.7340013895954 7.8163e-05 deg
peri 133.4723824508202 8.006e-05 deg
M 50.9555851994216 1.6858e-05 deg
tp 2458802.801958396811
(2019-Nov-15.30195840)
6.5335e-05 TDB
period 1396.73197155149
3.82
7.9877e-06
2.187e-08
d
yr
n .2577445117119443 1.474e-09 deg/d
Q 2.8761509393227 1.0965e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1128  
   data-arc span      10371 days (28.39 yr)  
   first obs. used      1992-03-07  
   last obs. used      2020-07-29  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .54382  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Aug-25 00:58:49  

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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