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4288 Tokyotech (1989 TQ1)
Classification: Main-belt Asteroid          SPK-ID: 2004288
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2457000.5 (2014-Dec-09.0) TDB
Reference: JPL 10 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1776328713094635 7.3962e-08  
a 2.628652341102219 2.4071e-08 AU
q 2.161717278077889 2.0405e-07 AU
i 14.0168127937758 7.3779e-06 deg
node 44.64098918923123 2.2818e-05 deg
peri 324.5009957155712 2.7834e-05 deg
M 332.121091047186 2.0299e-05 deg
tp 2457121.051169092763
(2015-Apr-08.55116909)
8.8867e-05 JED
period 1556.675727405546
4.26
2.1382e-05
5.854e-08
d
yr
n .2312620372131059 3.1766e-09 deg/d
Q 3.09558740412655 2.8347e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      1018  
   data-arc span      20086 days (54.99 yr)  
   first obs. used      1959-09-30  
   last obs. used      2014-09-27  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .45541  
   data source      ORB  
   producer      Otto Matic  
   solution date      2014-Oct-09 14:00:36  

Additional Information
 Earth MOID = 1.17823 AU 
 T_jup = 3.337 
[ show covariance matrix ]

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

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 11.6 mag n/a MPO302089  
rotation period rot_per 3.181 h n/a Asteroid Lightcurve DataBase (Rev. 2014-Mar-01) Published Reference List:
[Koff, R.A. (2003) Minor Planet Bul. 30, 38-39.]

4288 Tokyotech           Discovered 1989 Oct. 8 by T. Kojima at Chiyoda.
Founded in 1881 as the Tokyo Vocational School, what is now the Tokyo Institute of Technology was made a degree-conferring university in 1929 and is the largest national institution of higher learning in Japan dedicated to science and technology.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20080819/MPCPages.arcLast Updated: 2008-08-25

Alternate Designations
 1989 TQ1 = 1951 XD1 = 1959 SJ = 1962 JG = 1980 NU = 1983 EQ3 = 1983 HA2 = A921 XA 
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ]
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