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12653 van der Klis (2664 T-3)
Classification: Main-belt Asteroid          SPK-ID: 2012653
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

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For accurate long-term ephemerides, please instead use our Horizons system.This orbit viewer was implemented using two-body methods, and hence should not be used for determining accurate long-term trajectories (over several years or decades) or planetary encounter circumstances.

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Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 20 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1388588024232446 3.6183e-08  
a 2.374912568897705 1.0293e-08 au
q 2.045135053720658 8.5225e-08 au
i 2.454661394023054 5.7018e-06 deg
node 355.0689794020972 9.5922e-05 deg
peri 82.83429051302146 9.8166e-05 deg
M 78.37882292523777 2.1362e-05 deg
tp 2458309.451006285688
7.8754e-05 TDB
period 1336.810554517963
n .2692976942643989 1.7508e-09 deg/d
Q 2.704690084074751 1.1723e-08 au
  Orbit Determination Parameters
   # obs. used (total)      794  
   data-arc span      15157 days (41.50 yr)  
   first obs. used      1977-10-07  
   last obs. used      2019-04-07  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .58151  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-12 19:18:32  

Additional Information
 Earth MOID = 1.06214 au 
 Jupiter MOID = 2.52208 au 
 T_jup = 3.528 
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Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 15.9   n/a MPO467816  
diameter diameter 3.942 km 0.146 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (  
geometric albedo albedo 0.054   0.010 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (  

12653 van der Klis           Discovered 1977 Oct. 11 by C. J. van Houten and I. van Houten-Groeneveld on Palomar Schmidt plates taken by T. Gehrels.
Michiel van der Klis (b. 1953) is a Dutch astronomer and expert on the properties of neutron stars and black holes. He discovered quasi-periodic oscillations in X-ray binaries. He is the former Director of the Anton Pannekoek Institute in Amsterdam, and the winner of the Bruno Rossi prize (1987) and the Spinoza award (2004).
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: MPC batch dated 2018-10-26Last Updated: 2019-04-09

Alternate Designations
 2664 T-3 = 1995 OP7 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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