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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 2457400.5 (2016-Jan-13.0) TDB
Reference: JPL 19 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .06993711399484522 4.5505e-08  
a 2.737698097320326 1.6273e-08 au
q 2.546231393404563 1.2664e-07 au
i 6.381336280872005 5.1754e-06 deg
node 167.7755709752894 4.4215e-05 deg
peri 198.7490037239166 5.9376e-05 deg
M 65.58292502671483 3.839e-05 deg
tp 2457099.084876120963
(2015-Mar-17.58487612)
0.00017617 JED
period 1654.538045569831
4.53
1.4752e-05
4.039e-08
d
yr
n .2175833919104679 1.94e-09 deg/d
Q 2.929164801236088 1.7411e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1025  
   data-arc span      20150 days (55.17 yr)  
   first obs. used      1960-10-17  
   last obs. used      2015-12-18  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .56722  
   data source      ORB  
   producer      Otto Matic  
   solution date      2016-Jan-04 13:15:12  

Additional Information
 Earth MOID = 1.54295 au 
 Jupiter MOID = 2.40983 au 
 T_jup = 3.339 
[ 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-December); 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. 150, A75.]

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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