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JPL Small-Body Database Browser
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17025 Pilachowski (1999 ES5)
Classification: Main-belt Asteroid          SPK-ID: 2017025
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 27 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .203140284262892 3.9412e-08  
a 2.565362564823825 1.275e-08 au
q 2.044234084168131 1.0074e-07 au
i 7.398851373887084 4.4193e-06 deg
node 7.902698426674327 3.5208e-05 deg
peri 296.8627704528575 3.7227e-05 deg
M 209.1889384990849 1.5518e-05 deg
tp 2459229.212727768335
(2021-Jan-14.71272777)
6.6792e-05 TDB
period 1500.795629604578
4.11
1.1189e-05
3.063e-08
d
yr
n .2398727667502942 1.7883e-09 deg/d
Q 3.086491045479518 1.534e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1289  
   data-arc span      11234 days (30.76 yr)  
   first obs. used      1988-08-19  
   last obs. used      2019-05-23  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .4685  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-12 22:13:18  

Additional Information
 Earth MOID = 1.04161 au 
 Jupiter MOID = 2.21648 au 
 T_jup = 3.392 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 14.2   n/a MPO435857  
diameter diameter 3.971 km 1.169 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.234   0.153 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

17025 Pilachowski           Discovered 1999 Mar. 13 by R. A. Tucker at Goodricke-Pigott Observatory.
Caty Pilachowski (b. 1949) is a specialist in the study of stellar evolution and compositions, nucleosynthesis and astroseismology. A long-time member of the scientific staff of the National Optical Astronomy Observatories, she was recently elected to serve as president of the American Astronomical Society.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20010804/MPCPages.arcLast Updated: 2009-05-11

Alternate Designations
 1999 ES5 = 1988 RV2 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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