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10300 Tanakadate (1989 EG1)
Classification: Main-belt Asteroid          SPK-ID: 2010300
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 24 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1017052662150574 2.9143e-08  
a 2.230485638718801 6.3062e-09 au
q 2.003633503044043 6.475e-08 au
i 5.461644428101874 3.2201e-06 deg
node 158.9280098162737 3.8665e-05 deg
peri 4.540062902662165 4.2906e-05 deg
M 25.53616036060574 1.8227e-05 deg
tp 2458514.192076088612
(2019-Jan-30.69207609)
6.1593e-05 TDB
period 1216.739406760318
3.33
5.1601e-06
1.413e-08
d
yr
n .295872721800417 1.2548e-09 deg/d
Q 2.457337774393559 6.9476e-09 au
  Orbit Determination Parameters
   # obs. used (total)      2049  
   data-arc span      11581 days (31.71 yr)  
   first obs. used      1987-08-26  
   last obs. used      2019-05-11  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .49009  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-May-30 01:48:09  

Additional Information
 Earth MOID = 1.01193 au 
 Jupiter MOID = 2.51503 au 
 T_jup = 3.630 
[ 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 14.5   n/a MPO435797  
diameter diameter 3.355 km 0.169 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.299   0.028 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

10300 Tanakadate           Discovered 1989 Mar. 6 by T. Seki at Geisei.
Physicist Aikitu Tanakadate (1856-1952) was a pioneer in geophysical research in Japan. He started his study by measuring gravity and geomagnetism at many points. The International Latitude Observatory at Mizusawa was founded in 1899 following his proposal.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20060219/MPCPages.arcLast Updated: 2010-06-03

[ show close-approach data ]
Alternate Designations
 1989 EG1 = 1994 WV7 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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