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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 2459396.5 (2021-Jul-01.0) TDB
Reference: JPL 26 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1758891256363332 2.6353e-08  
a 2.445512187898311 8.1698e-09 au
q 2.015373187435881 6.4404e-08 au
i 3.149030436272555 4.4158e-06 deg
node 140.7321545973855 7.7491e-05 deg
peri 133.4850533295763 7.9195e-05 deg
M 153.0355478285329 1.6695e-05 deg
tp 2458802.696167838709
(2019-Nov-15.19616784)
6.4253e-05 TDB
period 1396.860942515007
3.82
6.9998e-06
1.916e-08
d
yr
n .2577207143839462 1.2915e-09 deg/d
Q 2.875651188360741 9.6067e-09 au
  Orbit Determination Parameters
   # obs. used (total)      1330  
   data-arc span      10569 days (28.94 yr)  
   first obs. used      1992-03-07  
   last obs. used      2021-02-12  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .5263  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 00:55:25  

Additional Information
 Earth MOID = 1.00046 au 
 Jupiter MOID = 2.23845 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

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