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10984 Gispen (3507 T-3)
Classification: Mars-crossing Asteroid          SPK-ID: 2010984
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2457000.5 (2014-Dec-09.0) TDB
Reference: JPL 7 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .3274483182371367 5.42e-08  
a 2.169267872598625 8.7363e-09 AU
q 1.458944755910354 1.1488e-07 AU
i 5.878220925125093 5.4464e-06 deg
node 202.5384108979589 4.9097e-05 deg
peri 82.58176938957325 5.0188e-05 deg
M 282.6139495812948 8.8689e-06 deg
tp 2457251.358247820962
(2015-Aug-16.85824782)
2.9233e-05 JED
period 1166.992871802091
3.20
7.0497e-06
1.93e-08
d
yr
n .3084851747586783 1.8635e-09 deg/d
Q 2.879590989286896 1.1597e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      910  
   data-arc span      13625 days (37.30 yr)  
   first obs. used      1977-10-07  
   last obs. used      2015-01-26  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .5135  
   data source      ORB  
   producer      Otto Matic  
   solution date      2015-Feb-04 13:30:47  

Additional Information
 Earth MOID = .460723 AU 
 T_jup = 3.612 
[ 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 14.6 mag n/a MPO279631  

10984 Gispen           Discovered 1977 Oct. 16 by C. J. van Houten and I. van Houten-Groeneveld on Palomar Schmidt plates taken by T. Gehrels.
Willem Hendrik Gispen (b. 1943) is a well-known Dutch scientist in the field of neurosciences, and from 2001 to 2007 he was rector of Utrecht University. He contributed to establishing the Sonnenborgh museum and observatory as a place for communication and education in astronomy and meteorology.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20070730/MPCPages.arcLast Updated: 2007-08-07

[ show close-approach data ]
Alternate Designations
 3507 T-3 = 1993 TH3 
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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