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10655 Pietkeyser (9535 P-L)
Classification: Main-belt Asteroid          SPK-ID: 2010655
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2457000.5 (2014-Dec-09.0) TDB
Reference: JPL 15 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .07022556698152536 5.686e-08  
a 2.738557779215054 1.9681e-08 AU
q 2.54624100645801 1.6365e-07 AU
i 6.380925598038836 6.2013e-06 deg
node 167.7732093083507 4.4785e-05 deg
peri 198.8399025431674 6.0602e-05 deg
M 338.479426531687 4.0462e-05 deg
tp 2457099.453834628997
(2015-Mar-17.95383463)
0.00018632 JED
period 1655.317434681335
4.53
1.7844e-05
4.885e-08
d
yr
n .2174809450184421 2.3444e-09 deg/d
Q 2.930874551972098 2.1063e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      890  
   data-arc span      20005 days (54.77 yr)  
   first obs. used      1960-10-17  
   last obs. used      2015-07-26  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .5905  
   data source      ORB  
   producer      Otto Matic  
   solution date      2015-Sep-02 14:30:59  

Additional Information
 Earth MOID = 1.54498 AU 
 T_jup = 3.338 
[ show covariance matrix ]

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

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 14.2 mag n/a MPO302131  
rotation period rot_per 94.0505 h n/a LCDB (Rev. 2015-July); 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:
[Waszczak, A.; Chang, C.-K.; Ofeck, E.O.; Laher, F.; et al. (2015) Astron. J., in press.]

10655 Pietkeyser           Discovered 1960 Oct. 17 by C. J. van Houten and I. van Houten-Groeneveld on Palomar Schmidt plates taken by T. Gehrels.
Dutch navigator Pieter Dirkszoon Keyser (c. 1540-1596) sailed to the East Indies in 1595. He is credited with having invented twelve new constellations in the southern sky, first depicted in 1598 on a globe by Petrus Plancius.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20021120/MPCPages.arcLast Updated: 2003-10-02

Alternate Designations
 9535 P-L = 1978 RC10 
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ]
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