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17556 Pierofrancesca (1993 WB)
Classification: Main-belt Asteroid          SPK-ID: 2017556
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 26 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1827748184096766 2.6078e-08  
a 2.331560058365256 6.0322e-09 au
q 1.905409592086291 6.0588e-08 au
i 1.735829494116746 3.3817e-06 deg
node 337.5602569638182 0.00010857 deg
peri 122.9171105625601 0.00010905 deg
M 130.8962093509398 1.0353e-05 deg
tp 2458527.683192442610
(2019-Feb-13.18319244)
3.6771e-05 TDB
period 1300.374178631158
3.56
5.0465e-06
1.382e-08
d
yr
n .2768433931677687 1.0744e-09 deg/d
Q 2.757710524644221 7.1347e-09 au
  Orbit Determination Parameters
   # obs. used (total)      1826  
   data-arc span      9745 days (26.68 yr)  
   first obs. used      1993-11-11  
   last obs. used      2020-07-17  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .51639  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Aug-25 01:13:58  

Additional Information
 Earth MOID = .922952 au 
 Jupiter MOID = 2.39452 au 
 T_jup = 3.547 
[ 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 14.7   n/a MPO416896  
rotation period rot_per 9.17 h n/a LCDB (Rev. 2019-August); Warner et al., 2009 Published Reference List:
[Stephens, R.D. (2005) Minor Planet Bull. 32, 66-68.]

17556 Pierofrancesca           Discovered 1993 Nov. 16 by V. S. Casulli at the Colleverde.
Piero della Francesca (1416-1492) was an Italian Renaissance painter and member of the second generation of Humanists.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20120406/MPCPages.arcLast Updated: 2012-04-09

[ show close-approach data ]
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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