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15339 Pierazzo (1994 AA9)
Classification: Main-belt Asteroid          SPK-ID: 2015339
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 25 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .08514640917463895 5.2637e-08  
a 2.92686540582615 1.4272e-08 au
q 2.677653326382581 1.5577e-07 au
i 3.105034082144305 3.9621e-06 deg
node 127.7210410045543 8.3256e-05 deg
peri 246.0197849005868 8.5841e-05 deg
M 188.3417967700487 2.1457e-05 deg
tp 2459872.596645083861
(2022-Oct-20.09664508)
0.00011114 TDB
period 1828.953037622209
5.01
1.3377e-05
3.662e-08
d
yr
n .196833922246593 1.4397e-09 deg/d
Q 3.176077485269719 1.5487e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1615  
   data-arc span      9607 days (26.30 yr)  
   first obs. used      1994-01-08  
   last obs. used      2020-04-28  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .48997  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-20 04:09:58  

Additional Information
 Earth MOID = 1.67985 au 
 Jupiter MOID = 2.2772 au 
 T_jup = 3.270 
[ 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 13.6   n/a MPO324450  
diameter diameter 4.950 km 1.260 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
rotation period rot_per 5.61 h n/a LCDB (Rev. 2019-August); Warner et al., 2009 Result based on less than full coverage, so that the period may be wrong by 30 percent or so.
Published Reference List:
[Chang, C.K.; Ip, W.-H.; Lin, H.-W.; Cheng, Y.C.; et al. (2015) Astrophys. J. Supp. Ser. 219, A27.]
[Waszczak, A.; Chang, C.-K.; Ofeck, E.O.; Laher, F.; et al. (2015) Astron. J. 150, A75.]
geometric albedo albedo 0.315   0.203 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

15339 Pierazzo           Discovered 1994 Jan. 8 by Spacewatch at Kitt Peak.
Elisabetta Pierazzo (1963-2011) was an expert in impact modeling, in particular of the Chicxulub impact, as well as in modeling the effects of impacts on Earth and Mars. She was an enthusiastic communicator of science to the general public and a dedicated teacher of planetary science for students and educators.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20110715/MPCPages.arcLast Updated: 2011-07-20

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Alternate Designations
 1994 AA9 = 2000 FG30 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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