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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 2457400.5 (2016-Jan-13.0) TDB
Reference: JPL 15 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1773998153586162 6.0025e-08  
a 2.628009985293392 1.8548e-08 au
q 2.161801499141744 1.6164e-07 au
i 14.01792622650864 6.8224e-06 deg
node 44.63795351745411 2.1461e-05 deg
peri 324.492493052728 2.6574e-05 deg
M 64.66053421259811 1.867e-05 deg
tp 2457121.003913693467
(2015-Apr-08.50391369)
7.9035e-05 JED
period 1556.105162068827
4.26
1.6474e-05
4.51e-08
d
yr
n .2313468323190854 2.4492e-09 deg/d
Q 3.09421847144504 2.1838e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1132  
   data-arc span      20534 days (56.22 yr)  
   first obs. used      1959-09-30  
   last obs. used      2015-12-19  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .44677  
   data source      ORB  
   producer      Otto Matic  
   solution date      2016-Jan-04 12:51:47  

Additional Information
 Earth MOID = 1.17676 au 
 Jupiter MOID = 2.395 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 LCDB (Rev. 2015-December); Warner et al., 2009 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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