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9490 Gosemeijer (1181 T-1)
Classification: Main-belt Asteroid          SPK-ID: 2009490
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2456800.5 (2014-May-23.0) TDB
Reference: JPL 9 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .09542668861802563 7.3044e-08  
a 2.941819700303077 2.698e-08 AU
q 2.661091587791882 2.1236e-07 AU
i 3.581284731116714 9.076e-06 deg
node 325.0287801952206 8.8578e-05 deg
peri 232.6692187413449 9.8696e-05 deg
M 184.1696466592864 4.4328e-05 deg
tp 2457700.647859037231
(2016-Nov-08.14785904)
0.00022867 JED
period 1842.987988686298
5.05
2.5354e-05
6.942e-08
d
yr
n .1953349681115458 2.6872e-09 deg/d
Q 3.222547812814272 2.9555e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      1114  
   data-arc span      15630 days (42.79 yr)  
   first obs. used      1971-03-24  
   last obs. used      2014-01-07  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .50306  
   data source      ORB  
   producer      Otto Matic  
   solution date      2014-Jun-09 19:33:25  

Additional Information
 Earth MOID = 1.66167 AU 
 T_jup = 3.263 
[ 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 13.0 mag n/a MPO267745  

9490 Gosemeijer           Discovered 1971 Mar. 25 by C. J. van Houten and I. van Houten-Groeneveld on Palomar Schmidt plates taken by T. Gehrels.
Dutch amateur astronomer Henny Gosemeijer (1924-1999) founded the Public Observatory Twente in 1984. He himself made many observations of satellites and meteors, in addition to his activities in popularizing astronomy. He was honored by NASA and awarded the Dutch "van der Bilt" and "Simon Stevin" prizes.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20000124/MPCPages.arcLast Updated: 2013-03-29

[ show close-approach data ]
Alternate Designations
 1181 T-1 = 1991 EF4 = 2067 T-2 
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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