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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 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 28 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1821918383675873 2.6019e-08  
a 2.332805891928647 5.9887e-09 au
q 1.907787697923428 6.0475e-08 au
i 1.736002913193393 3.3619e-06 deg
node 337.5425002022346 0.00010836 deg
peri 123.0202623783591 0.00010885 deg
M 186.1445475312675 1.0405e-05 deg
tp 2459828.995463103924
(2022-Sep-06.49546310)
3.8614e-05 TDB
period 1301.416570516272
3.56
5.0114e-06
1.372e-08
d
yr
n .2766216507118762 1.0652e-09 deg/d
Q 2.757824085933867 7.0798e-09 au
  Orbit Determination Parameters
   # obs. used (total)      1851  
   data-arc span      9745 days (26.68 yr)  
   first obs. used      1993-11-11  
   last obs. used      2020-07-17  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .51313  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 02:06:08  

Additional Information
 Earth MOID = .925144 au 
 Jupiter MOID = 2.39371 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 14.72   n/a E2021B10  
rotation period rot_per 9.17 h n/a LCDB (Rev. 2020-October); 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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