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12170 Vanvollenhoven (2372 T-3)
Classification: Main-belt Asteroid          SPK-ID: 2012170
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2457000.5 (2014-Dec-09.0) TDB
Reference: JPL 7 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2997559055954354 6.6795e-08  
a 3.062729269808407 3.1262e-08 AU
q 2.144658083943342 2.1324e-07 AU
i 2.991732046102544 6.5236e-06 deg
node 247.5494998486068 0.00014461 deg
peri 59.59993663244066 0.00014501 deg
M 5.578382006369955 1.1525e-05 deg
tp 2456970.163387028627
(2014-Nov-08.66338703)
6.2501e-05 JED
period 1957.768517326948
5.36
2.9975e-05
8.207e-08
d
yr
n .18388282210786 2.8154e-09 deg/d
Q 3.980800455673473 4.0633e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      583  
   data-arc span      14010 days (38.36 yr)  
   first obs. used      1976-05-02  
   last obs. used      2014-09-10  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .59532  
   data source      ORB  
   producer      Otto Matic  
   solution date      2014-Oct-09 14:22:14  

Additional Information
 Earth MOID = 1.13275 AU 
 T_jup = 3.161 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 14.2 mag n/a MPO259430  

12170 Vanvollenhoven           Discovered 1977 Oct. 16 by C. J. van Houten and I. van Houten-Groeneveld on Palomar Schmidt plates taken by T. Gehrels.
Pieter van Vollenhoven (b. 1939) is a professor of risk management at the Technical University of Twente. The Netherlands Ambassador of the International Year of Astronomy (2009), he has actively supported the popularization of astronomy and space science in the Netherlands for many years.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20081212/MPCPages.arcLast Updated: 2008-12-12

[ show close-approach data ]
Alternate Designations
 2372 T-3 = 1976 JL7 = 1996 BP9 
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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