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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 2456800.5 (2014-May-23.0) TDB
Reference: JPL 8 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1777077875825903 7.519e-08  
a 2.628729692670093 2.4341e-08 AU
q 2.161583954833028 2.0659e-07 AU
i 14.01717212416899 7.6257e-06 deg
node 44.64681881477492 2.2948e-05 deg
peri 324.5044893349624 2.8006e-05 deg
M 285.8693133303755 2.033e-05 deg
tp 2457121.062595042207
(2015-Apr-08.56259504)
9.0855e-05 JED
period 1556.744438770747
4.26
2.1622e-05
5.92e-08
d
yr
n .2312518298021138 3.2119e-09 deg/d
Q 3.095875430507158 2.8666e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      1011  
   data-arc span      19995 days (54.74 yr)  
   first obs. used      1959-09-30  
   last obs. used      2014-06-28  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .45686  
   data source      ORB  
   producer      Otto Matic  
   solution date      2014-Jul-14 12:08:51  

Additional Information
 Earth MOID = 1.17686 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 11.5 mag n/a MPO265980  
rotation period rot_per 3.181 h n/a Asteroid Lightcurve DataBase (Rev. 2013-Sep-12) 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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