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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 11 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1776328712125489 7.3948e-08  
a 2.628652341057567 2.4066e-08 AU
q 2.161717278295923 2.0402e-07 AU
i 14.01681283824017 7.3746e-06 deg
node 44.64098915061566 2.2817e-05 deg
peri 324.5009957279317 2.7831e-05 deg
M 332.1210910917821 2.0293e-05 deg
tp 2457121.051168896854
(2015-Apr-08.55116890)
8.8838e-05 JED
period 1556.675727365881
4.26
2.1378e-05
5.853e-08
d
yr
n .2312620372189985 3.1759e-09 deg/d
Q 3.095587403819211 2.8341e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      1027  
   data-arc span      20095 days (55.02 yr)  
   first obs. used      1959-09-30  
   last obs. used      2014-10-06  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .45347  
   data source      ORB  
   producer      Otto Matic  
   solution date      2014-Nov-10 12:55:47  

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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