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

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 34 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .06887156719862111 3.2994e-08  
a 2.73858554851678 1.135e-08 au
q 2.549974869882934 9.1725e-08 au
i 6.375046888449138 3.7789e-06 deg
node 167.6851629064878 3.0323e-05 deg
peri 200.769238854085 3.9675e-05 deg
M 51.48972951324448 2.5272e-05 deg
tp 2458763.741268430027
(2019-Oct-07.24126843)
0.00011613 TDB
period 1655.342612418777
4.53
1.0291e-05
2.818e-08
d
yr
n .2174776371363811 1.3521e-09 deg/d
Q 2.927196227150626 1.2132e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1582  
   data-arc span      21920 days (60.01 yr)  
   first obs. used      1960-10-17  
   last obs. used      2020-10-22  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .5319  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-13 03:04:53  

Additional Information
 Earth MOID = 1.54925 au 
 Jupiter MOID = 2.40584 au 
 T_jup = 3.339 
[ show covariance matrix ]

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

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 14.2   n/a MPO431622  
diameter diameter 4.187 km 0.161 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
rotation period rot_per 94.050 h n/a LCDB (Rev. 2019-August); 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.]
geometric albedo albedo 0.253   0.043 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

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 | Mission Design | Physical Parameters | Discovery Circumstances ]
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