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6927 Tonegawa (1994 TE1)
Classification: Main-belt Asteroid          SPK-ID: 2006927
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 33 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .009903495586380533 4.0113e-08  
a 2.340063226108061 8.1213e-09 au
q 2.316888420276449 9.1773e-08 au
i 4.828699385621931 3.5702e-06 deg
node 135.3160483384584 4.7741e-05 deg
peri 39.03257616749299 0.00018434 deg
M 154.0937709918201 0.00017886 deg
tp 2458040.842411111057
(2017-Oct-14.34241111)
0.00064883 TDB
period 1307.494330907864
3.58
6.8065e-06
1.864e-08
d
yr
n .2753358018386454 1.4333e-09 deg/d
Q 2.363238031939674 8.2017e-09 au
  Orbit Determination Parameters
   # obs. used (total)      2124  
   data-arc span      24891 days (68.15 yr)  
   first obs. used      1951-09-08  
   last obs. used      2019-11-01  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .49785  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Nov-07 02:57:59  

Additional Information
 Earth MOID = 1.32233 au 
 Jupiter MOID = 2.59863 au 
 T_jup = 3.560 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 13.4   n/a MPO452266  
diameter diameter 6.227 km 0.060 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.219   0.025 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

6927 Tonegawa           Discovered 1994 Oct. 2 by K. Endate and K. Watanabe at Kitami.
Named in honor of Susumu Tonegawa (b. 1939), Japanese biologist who was awarded the 1987 Nobel Prize for medicine and physiology. He revealed the mechanism of genes that produce various antibodies.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 19980808/MPCPages.arcLast Updated: 2009-11-17

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Alternate Designations
 1994 TE1 = 1984 YJ7 = 1987 SE11 = 1989 CL6 = 1990 RV9 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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