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JPL Small-Body Database Browser
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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 ]

[ show orbit diagram ]
Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 22 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .183076483531301 2.6557e-08  
a 2.3313899611865 6.3275e-09 au
q 1.904567285352299 6.1904e-08 au
i 1.735822757399062 3.8219e-06 deg
node 337.5664690878062 0.00010976 deg
peri 122.8842782343521 0.00011039 deg
M 20.14702210689866 1.104e-05 deg
tp 2458527.733887719886
(2019-Feb-13.23388772)
3.981e-05 TDB
period 1300.231879522832
3.56
5.2933e-06
1.449e-08
d
yr
n .2768736912773708 1.1272e-09 deg/d
Q 2.758212637020701 7.4859e-09 au
  Orbit Determination Parameters
   # obs. used (total)      1696  
   data-arc span      9303 days (25.47 yr)  
   first obs. used      1993-11-11  
   last obs. used      2019-05-02  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .51396  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-May-30 02:31:37  

Additional Information
 Earth MOID = .922249 au 
 Jupiter MOID = 2.39535 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-January); 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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