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12172 Niekdekort (2390 T-3)
Classification: Main-belt Asteroid          SPK-ID: 2012172
[ Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ]

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Orbital Elements at Epoch 2456400.5 (2013-Apr-18.0) TDB
Reference: MPO256954 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e 0.0715277 n/a  
a 2.3869941 n/a AU
q 2.2162579 n/a AU
i 7.60286 n/a deg
node 14.40512 n/a deg
peri 225.56164 n/a deg
M 2.09477 n/a deg
tp 2456392.6619273
(2013-Apr-10.16192730)		 n/a JED
period 1347.0243390
3.69		 n/a
n/a		 d
yr
n 0.26725575 n/a deg/d
Q 2.5577303 n/a AU
   Orbit Determination Parameters
   # obs. used (total)      928  
   first obs. used      1972-??-??  
   last obs. used      2013-02-28  
   # oppositions      17  
   planetary ephem.      DE403  
   condition code      0  
   fit RMS      0.55  
   data source      MPC:mpn  
   producer      MPCLINUX  

Additional Information
 T_jup = 3.519 

[ Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 13.6 mag n/a PDS3 (MPC 36321)  

12172 Niekdekort           Discovered 1977 Oct. 16 by C. J. van Houten and I. van Houten-Groeneveld on Palomar Schmidt plates taken by T. Gehrels.
Niek De Kort (b. 1956) has done outstanding work popularizing astronomy. He authored several books, including one about space research and the course book Modern Astronomy (1980) for a TV course with an enrollment of 25~000 people. The name was suggested by H. van Woerden and A. v. d. Brugge.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20100527/MPCPages.arcLast Updated: 2010-12-06

Alternate Designations
 2390 T-3 = 1972 GC2 = 1981 UF9 
[ Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ]
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